d link managed switches interoperating with cisco switches (1)
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Interoperating with Cisco Switches
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Interoperating with Cisco Switches
Version: 1.00
Published: Mar 19, 2010
D-Link HQ
Scope
This guide is a one-stop resource to help users set up their network quickly and optimize the features of
D-Link and vendors equipment smoothly. This guide focuses on the configuration of D-Link and Cisco
switches and includes topology examples for setting up a multi-vendor environment.
Use this document to learn, use and configure the different features of D-Link and Cisco management
switches.
Audience
This document is written for system administrators, network managers and IT personnel who are
responsible for the deployment of management switches.
About This Guide
This guide is structured into four parts as follows:
Title Description
Terminology Detailed descriptions of functions that are used to explain similar concepts on both D-
Link & Cisco platforms.Topology Topology examples to show the interoperability of D-Link and Cisco switches.
Configuration Step-by-step instructions on how to configure and set up the devices.
Troubleshooting Tips Command examples on how to quickly troubleshoot and configure if interoperation
fails.
For more Information
This guide is applicable to all D-Link Managed Switches (DES-3000 series and above). Please refer to D-Link
Managed Switch User Manual or CLI Manual for more detailed explanations or parameter descriptions.
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Table of Contents
VLAN CONFIGURATION 3
Terminology 3Topology 3Configuration 4
Link Aggregation 11
Terminology 11Compatibility between D-Link Port-Trunking and Cisco Port-Channel 11Topology 12Configuration 12Troubleshooting Examples 13
Spanning Tree Configuration 20
Terminology 20Topology 20Configuration 20Troubleshooting Examples 21
Multiple Spanning Tree Configuration 25
Terminology 25
Compatibility between MSTOP and PVST 25Topology 25Configuration 26Troubleshooting Examples 27
Open Shortest Path Fast OSPF) Configuration 33
Terminology 33Topology Single OSPF Area 33Configuration 33Troubleshooting Examples 36Topology Single OSPF Area 41Configuration 41Troubleshooting Examples 44
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VLAN CONFIGURATION
This chapter introduces port-based VLANs that D-Link and Cisco switches support.
Terminology
Cisco D-Link Description
Trunking Port Tagged Port This port carries multiple 802.1Q tagged VLANs that are usually used for uplinkand IP phone ports
Access Port Untagged Port A port which is an untagged member of a VLAN.
Native VLAN Untagged
Membership of
Physical Ports
In Cisco LAN switch environments the native VLAN is typically untagged on
VLAN trunk ports. Native VLAN is not associated to any tag on an 802.1Q link
and is used for all the untagged traffic received on an 802.1Q port.
By default, all VLAN membership of D-Link switches and access VLAN in Cisco
switches is VLAN 1.
Topology
Figure-1 Port-based VLAN Configuration
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Configuration
VLAN Configuration on a Cisco Switch
The following section lists step-by-step instructions for configuring VLAN and IP on D-Link and Cisco
management switches.
Command Example Purpose
Step 1
Cat al yst# conf i g ter mi nal
Cat al yst( conf i g) # vl an 10, 20, 30
Cat al yst ( conf i g- vl an) # exi t
To create VLAN
interfaces for ports 10,
20 and 30.
Step 2
Cat al yst ( conf i g) # i nt er f ace range gi gabi t Et her net 1/ 0/ 1- 6
Cat al yst( conf i g- i f ) # swi t chpor t mode access
Cat al yst ( conf i g- i f ) # swi t chpor t access vl an 10
Cat al yst( conf i g- i f ) # exi t
Cat al yst( conf i g) # i nt er f ace r ange gi gabi t Et her net 1/ 0/ 7- 12
Cat al yst( conf i g- i f ) # swi t chpor t mode access
Cat al yst ( conf i g- i f ) # swi t chpor t access vl an 20
Cat al yst( conf i g- i f ) # exi t
Cat al yst( conf i g) # i nt er f ace r ange gi gabi t Et her net 1/ 0/ 13- 18
Cat al yst( conf i g- i f ) # swi t chpor t mode access
Cat al yst ( conf i g- i f ) # swi t chpor t access vl an 30
Cat al yst( conf i g- i f ) # exi t
To change ports to
access mode and
assign membership for
each VLAN.
Step 3
Cat al yst ( conf i g) # i nt er f ace gi gabi t Et her net 1/ 0/ 21
Cat al yst ( conf i g- i f ) # swi t chpor t t r unk encapsul at i on dot 1q
Cat al yst ( conf i g- i f ) # swi t chpor t t r unk al l owed vl an
1, 10, 20, 30
Cat al yst( conf i g- i f ) # swi t chpor t mode t r unkCat al yst( conf i g- i f ) # exi t
To create a VLAN
trunking port.
Note:By default a Cisco VLAN trunk sends to and receives traffic from all VLANs. To restrict the traffic a VLAN
trunk carries, remove VLAN-list parameter to remove specific VLANs from the allowed list.
Note:By default, all ports of a Cisco switch belong to VLAN 1, access mode.
IP Configuration on a Cisco Switch
The following configuration example is for L3 switches. For layer 3 switches, an IP address has to be defined
for each VLAN and for a layer 2 switch, an IP address can only be configured on one VLAN for management
purposes.
Command Example Purpose
Step 1
Cat al yst ( conf i g) # i nt er f ace vl an 1
Cat al yst ( conf i g- vl an) # i p addr ess 192. 168. 0. 1 255. 255. 255. 0
Cat al yst ( conf i g- vl an) # no shut down
To configure the IP
addresses for the
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Cat al yst ( conf i g- vl an) # exi t
Cat al yst ( conf i g) # i nt er f ace vl an 10
Cat al yst ( conf i g- vl an) # i p addr ess 192. 168. 10. 1 255. 255. 255. 0
Cat al yst ( conf i g- vl an) # no shut down
Cat al yst ( conf i g- vl an) # exi t
Cat al yst ( conf i g) # i nt er f ace vl an 20
Cat al yst ( conf i g- vl an) # i p addr ess 192. 168. 20. 1 255. 255. 255. 0
Cat al yst ( conf i g- vl an) # no shut down
Cat al yst ( conf i g- vl an) # exi t
Cat al yst ( conf i g) # i nt er f ace vl an 30
Cat al yst ( conf i g- vl an) # i p addr ess 192. 168. 30. 1 255. 255. 255. 0
Cat al yst ( conf i g- vl an) # no shut down
Cat al yst ( conf i g- vl an) # exi t
VLAN interfaces.
VLAN Configuration on a D-Link Switch
In this example, ports 1 to 18 are removed from VLAN 1 (default VLAN) and are assigned to three different
VLANs. Here are the details:
- Ports 1 to 6 are assigned to VLAN 10.
- Ports 7 to 12 are assigned to VLAN 20.
- Ports 13 to 18 are assigned to VLAN 30.
- Port 21 (uplink) is tagged with VLAN 10, 20, 30 and belongs to an untagged member of VLAN 1.
Command Example Purpose
Step 1
swi t ch# cr eat e vl an 10 t ag 10
swi t ch# cr eat e vl an 20 t ag 20
swi t ch# cr eat e vl an 30 t ag 30
swi t ch# conf i g vl an def aul t del et e 1- 18
swi t ch# conf i g vl an 10 add untagged 1- 6
swi t ch# conf i g vl an 20 add untagged 7- 12
swi t ch# conf i g vl an 30 add untagged 13- 18
swi t ch# conf i g vl an 10 add t agged 21
swi t ch# conf i g vl an 20 add t agged 21
swi t ch# conf i g vl an 30 add t agged 21
To create VLAN
interfaces for ports 10,
20, 30 and assign port
membership.
IP Configuration on a D-Link Switch
The following configuration example is for L3 switches.
Layer 3 switches require an IP address for each VLAN; Layer 2 switches only require a system IP address.
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Command Example Purpose
Step 1
swi t ch# conf i g i pi f System i paddr ess 192. 168. 0. 2/ 24
swi t ch# cr eat e i pi f 10 192. 168. 10. 2/ 24 10
swi t ch# cr eat e i pi f 20 192. 168. 20. 2/ 24 20
swi t ch# cr eat e i pi f 30 192. 168. 30. 2/ 24 30
To configure the IP
addresses for the
VLAN interfaces.
Troubleshooting Examples
The following section lists command examples for verifying VLANs and port assignments on D-Link and
Cisco switches.
Verifying VLANs and Ports Assignments on a Cisco Switch
The following example shows you how to verify the member ports and all the VLAN interfaces.
Command Example
Catal yst # show vlan
VLAN Name St at us Por t s- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1 def aul t act i ve Gi1/0/19, Gi1/0/20, Gi1/0/21, Gi1/0/22, Gi1/0/23,
Gi1/0/24
10 VLAN0010 act i ve Gi1/0/1, Gi1/0/2, Gi1/0/3, Gi1/0/4, Gi1/0/5,
Gi1/0/6
20 VLAN0020 act i ve Gi1/0/7, Gi1/0/8, Gi1/0/9, Gi1/0/10, Gi1/0/11,
Gi1/0/12
30 VLAN0030 act i ve Gi1/0/13, Gi1/0/14, Gi1/0/15, Gi1/0/16, Gi1/0/17,
Gi1/0/18
The following example shows you how to set a trunking port.
Command Example
Catal yst # show interfaces gigabitEthernet 1/0/21 switchport
Name: Gi 1/ 0/ 19
Swi t chpor t : Enabl ed
Admi ni st r at i ve Mode: trunk
Operat i onal Mode: t r unk
Admi ni st r at i ve Trunki ng Encapsul at i on: dot1q
Oper at i onal Trunki ng Encapsul at i on: dot1q
Negot i at i on of Trunki ng: On
Access Mode VLAN: 1 ( def aul t )
Tr unki ng Nat i ve Mode VLAN: 1 ( def aul t )
Admi ni st r at i ve Nat i ve VLAN t aggi ng: enabl edVoi ce VLAN: none
Admi ni st r at i ve pr i vat e- vl an host - associ at i on: none
Admi ni st r at i ve pr i vat e- vl an mappi ng: none
Admi ni st r at i ve pr i vat e- vl an t r unk nat i ve VLAN: none
Admi ni st r at i ve pr i vat e- vl an t r unk Nat i ve VLAN t aggi ng: enabled
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Admi ni st r at i ve pr i vat e- vl an t r unk encapsul at i on: dot 1q
Admi ni st r at i ve pr i vat e- vl an t r unk normal VLANs: none
Admi ni st r at i ve pr i vat e- vl an t r unk associ at i ons: none
Admi ni st r at i ve pr i vat e- vl an t r unk mappi ngs: none
Oper at i onal pr i vat e- vl an: none
Tr unki ng VLANs Enabl ed: 1,10,20,30
Pr uni ng VLANs Enabl ed: 2- 1001
Capt ure Mode Di sabl ed
Capt ure VLANs Al l owed: ALL
Pr ot ected: f al se
Unknown uni cast bl ocked: di sabl ed
Unknown mul t i cast bl ocked: di sabl ed
Appl i ance tr ust : none
The following example shows you how to set the access ports.
Command Example
Catal yst # show interfaces gigabitEthernet 1/0/1 switchport
Name: Gi 1/ 0/ 1
Swi t chport : Enabl ed
Admi ni st r at i ve Mode: static access
Oper at i onal Mode: down
Admi ni st r at i ve Tr unki ng Encapsul at i on: negoti at e
Negot i at i on of Tr unki ng: Of f
Access Mode VLAN: 10 ( VLAN0010)
Tr unki ng Nat i ve Mode VLAN: 1 ( def aul t )
Admi ni st r at i ve Nat i ve VLAN t aggi ng: enabl ed
Voi ce VLAN: none
Admi ni st r at i ve pr i vat e- vl an host - associ at i on: noneAdmi ni st r at i ve pr i vat e- vl an mappi ng: none
Admi ni st r at i ve pr i vat e- vl an t r unk nat i ve VLAN: none
Admi ni st r at i ve pr i vat e- vl an t r unk Nat i ve VLAN t aggi ng: enabl ed
Admi ni st r at i ve pr i vat e- vl an t r unk encapsul at i on: dot 1q
Admi ni st r at i ve pr i vat e- vl an t r unk normal VLANs: none
Admi ni st r at i ve pr i vat e- vl an t r unk associ at i ons: none
Admi ni st r at i ve pr i vat e- vl an t r unk mappi ngs: none
Oper at i onal pr i vat e- vl an: none
Tr unki ng VLANs Enabl ed: ALL
Pruni ng VLANs Enabl ed: 2- 1001
Capt ure Mode Di sabl ed
Capt ure VLANs Al l owed: ALL
Pr ot ected: f al se
Unknown uni cast bl ocked: di sabl ed
Unknown mul t i cast bl ocked: di sabl ed
Appl i ance t r ust : none
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The following example shows you how to verify the IP address of each VLAN interface.
Command Example
Catal yst # show ip interface brief
I nt erf ace I P- Addr ess OK? Met hod St at us Prot ocol
Vl an1 192.168.0.1 YES manual up upVl an10 192.168.10.1 YES manual up up
Vl an20 192.168.20.1 YES manual up up
Vl an30 192.168.30.1 YES manual up up
Verifying VLANs and Port Assignments on D-Link Switches
The following example shows you how to verify all the VLAN interfaces and member ports.
Command Example
swi t ch# show vlanCommand: show vl an
VI D : 1 VLAN Name : def aul t
VLAN Type : St at i c Adver t i sement : Enabl ed
Member Por t s : 19-24
St at i c Por t s : 19- 24
Cur r ent Tagged Por t s :
Cur r ent Unt agged Por t s : 19- 24
St at i c Tagged Por t s :
St at i c Unt agged Port s : 19-24
For bi dden Por t s :
St at us : Act i ve
VI D : 10 VLAN Name : 10
VLAN Type : St at i c Adver t i sement : Di sabl ed
Member Por t s : 1-6,21
St at i c Por t s : 1- 6, 21
Cur r ent Tagged Por t s : 21
Cur r ent Unt agged Por t s : 1-6
St at i c Tagged Por t s : 21
St at i c Unt agged Port s : 1- 6
For bi dden Por t s :
St at us : Act i ve
VI D : 20 VLAN Name : 20
VLAN Type : St at i c Adver t i sement :
Di sabl ed
Member Por t s : 7-12,21
St at i c Por t s : 7- 12, 21
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Cur r ent Tagged Por t s : 21
Cur r ent Unt agged Por t s : 7-12
St at i c Tagged Por t s : 21
St at i c Unt agged Por t s : 7- 12
For bi dden Por t s :
St at us : Act i ve
VI D : 30 VLAN Name: 30
VLAN Type : St at i c Adver t i sement : Di sabl ed
Member Por t s : 13-18,21
St at i c Por t s : 13- 18, 21
Cur r ent Tagged Por t s : 21
Cur r ent Unt agged Por t s : 13-18
St at i c Tagged Por t s : 21
St at i c Unt agged Por t s : 13- 18
For bi dden Por t s :
St at us : Act i ve
Tot al Entr i es: 4
The following example shows you how to verify the IP address of each VLAN interface.
Command Example
swi t ch# show ipif
Command: show i pi f
I P I nt er f ace : 10
VLAN Name : 10
I nt er f ace Admi n st at e : Enabl ed
DHCPv6 Cl i ent State : Di sabl edI Pv4 Addr ess : 192.168.10.2/24 ( Manual ) Pr i mary
Proxy ARP : Di sabl ed ( Local : Di sabl ed)
I P Di r ect ed Br oadcast : Di sabl ed
I P MTU : 1500
I P I nt er f ace : 20
VLAN Name : 20
I nt er f ace Admi n st at e : Enabl ed
DHCPv6 Cl i ent State : Di sabl ed
I Pv4 Addr ess : 192.168.20.2/24 ( Manual ) Pr i mary
Proxy ARP : Di sabl ed ( Local : Di sabl ed)
I P Di r ect ed Br oadcast : Di sabl edI P MTU : 1500
I P I nt er f ace : 30
VLAN Name : 30
I nt er f ace Admi n st at e : Enabl ed
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DHCPv6 Cl i ent State : Di sabl ed
I Pv4 Addr ess : 192.168.30.2/24 ( Manual ) Pr i mary
Proxy ARP : Di sabl ed ( Local : Di sabl ed)
I P Di r ect ed Br oadcast : Di sabl ed
I P MTU : 1500
I P I nt er f ace : Syst em
VLAN Name : def aul t
I nt er f ace Admi n st at e : Enabl ed
DHCPv6 Cl i ent State : Di sabl ed
I Pv4 Addr ess : 192.168.0.2/24 ( Manual ) Pr i mary
Proxy ARP : Di sabl ed ( Local : Di sabl ed)
I P Di r ect ed Br oadcast : Di sabl ed
I P MTU : 1500
Tot al Ent r i es: 4
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Link Aggregation
This chapter introduces Link Aggregation Control Protocol (LACP) function that both D-Link and Cisco
switches support.
Terminology
Cisco D-Link Description
Channel-group ID Group ID ID of a port aggregation group.
Port-channel Link Aggregation Group A logical port aggregation group.
Link Aggregation Group
Cisco defines the Aggregation group as Port-channel and is configured as the Interface Port-channel x.
The default Port-channel mode is static trunk, and the LACP mode for a dynamic trunk. On the other hand,
D-Link calls it Link Aggregation Groupand is configured as type static for a static trunk or type LACP for a
dynamic trunk.
Static and Dynamic Trunks/Channels
In between two switches, a Static Trunkbecomes an active trunk unconditionally and independently of the
other switchs configuration. A static trunk does not require any protocols.
ADynamic Trunkis active only when it is enabled in both D-Link and Cisco switches. To do so, the switches
exchange messages, either through Port Aggregation Protocol (PAgP) or Link Aggregation Control Protocol
(LACP), to negotiate their status. If either of the switches is active (LACP) or desirable (PAgP), then the
switch initiates negotiation. If the switch is passive (LACP) or auto (PAgP) then it forms a link aggregation
automatically.
LACP
LACP is the Link Aggregation Control Protocol defined by the IEEE 802.3ad standard. It provides a way for
both switches to negotiate a port aggregation. With LACP, one or more additional links can operate as
standby links that will activate only if an active link goes down.
When connecting two switches with LACP, one of the switches must be in active role to send LACP frames
and the other should be set passive.
Compatibility between D-Link Port-Trunking and Cisco Port-Channel
The following table summarizes the options that can be combined to create a trunk on both D-Link and
Cisco switches.
Cisco
D-Link
Mode On
Mode
Passive
Mode Active
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Static
LACP-Passive
LACP- Active
Note:All ports in a trunk group must be configured at the same speed and VLAN.
Topology
Figure-2 Link Aggregation and VLAN Configuration
Configuration
Static Trunk Configuration on a Cisco Switch
Command Example Purpose
Step 1
Cat al yst# conf i g t er mi nal
Cat al yst ( conf i g) # i nt er f ace r ange gi gabi t Et her net 1/ 0/ 19- 22
Cat al yst ( conf i g- i f ) # channel - gr oup 1 mode on
To create a channel
group 1 with static
mode.
Static Trunk Configuration on a D-Link Switch
Command Example Purpose
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Step 1
swi t ch# cr eat e l i nk_aggr egat i on gr oup_i d 1 t ype st at i c
swi t ch# conf i g l i nk_aggr egat i on gr oup_i d 1 port s 19- 22 st at e
enabl e
To create a trunk
group 1 with static
mode.
Troubleshooting Examples
Verifying the Static Channel Status on a Cisco Switch
The following example shows you how to correctly set the port mode and verify the channel group ports.
Command Example
Catal yst # show etherchannel 1 summary
Fl ags: D - down P - bundl ed i n port - channel
I - st and- al one s - suspended
H - Hot - st andby ( LACP onl y)
R - Layer3 S - Layer2
U - i n use f - f ai l ed t o al l ocat e aggr egat or
M - not i n use, mi ni mum l i nks not met
u - unsui t abl e f or bundl i ng
w - wai t i ng t o be aggregated
d - def aul t por t
Number of channel - groups i n use: 1
Number of aggregator s: 1
Gr oup Por t - channel Pr otocol Por t s
- - - - - - +- - - - - - - - - - - - - +- - - - - - - - - - - +- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1 Po1(SU) - Gi1/0/19(P) Gi1/0/20(P) Gi1/0/21(P)
Gi1/0/22(P)
Catal yst #show etherchannel 1 detai l
Gr oup st at e = L2
Por t s: 4 Maxpor t s = 8
Por t - channel s: 1 Max Por t - channel s = 1
Protocol : -
Mi ni mum Li nks: 0
Por t s i n the gr oup:
- - - - - - - - - - - - - - - - - - -
Por t : Gi 1/ 0/ 19
- - - - - - - - - - - -
Por t st at e = Up Mst r I n- Bndl
Channel gr oup = 1 Mode = On Gcchange = -
Por t - channel = Po1 GC = - Pseudo por t - channel = Po1
Por t i ndex = 0 Load = 0x00 Pr ot ocol = -
Age of t he por t i n the cur r ent st ate: 0d: 00h: 04m: 13s
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Por t : Gi 1/ 0/ 20
- - - - - - - - - - - -
Por t st at e = Up Mst r I n- Bndl
Channel gr oup = 1 Mode = On Gcchange = -
Por t - channel = Po1 GC = - Pseudo por t - channel = Po1
Por t i ndex = 0 Load = 0x00 Pr ot ocol = -
Age of t he por t i n the cur r ent st ate: 0d: 00h: 04m: 12s
Por t : Gi 1/ 0/ 21
- - - - - - - - - - - -
Por t st at e = Up Mst r I n- Bndl
Channel gr oup = 1 Mode = On Gcchange = -
Por t - channel = Po1 GC = - Pseudo por t - channel = Po1
Por t i ndex = 0 Load = 0x00 Pr ot ocol = -
Age of t he por t i n the cur r ent st ate: 0d: 00h: 04m: 14s
Por t : Gi 1/ 0/ 22
- - - - - - - - - - - -
Por t st at e = Up Mst r I n- Bndl
Channel gr oup = 1 Mode = On Gcchange = -
Por t - channel = Po1 GC = - Pseudo por t - channel = Po1
Por t i ndex = 0 Load = 0x00 Pr ot ocol = -
Age of t he por t i n the cur r ent st ate: 0d: 00h: 04m: 13s
Por t - channel s i n t he gr oup:- - - - - - - - - - - - - - - - - - - - - - - - - - -
Por t - channel : Po1
- - - - - - - - - - - -
Age of t he Por t - channel = 0d: 00h: 04m: 17s
Logi cal sl ot / por t = 10/ 1 Number of por t s = 4
GC = 0x00000000 Hot St andBy por t = nul l
Por t st at e = Por t - channel Ag- I nuse
Pr ot ocol = -
Por t secur i t y = Di sabl ed
Por t s i n t he Por t - channel :
I ndex Load Por t EC st at e No of bi t s
- - - - - - +- - - - - - +- - - - - - +- - - - - - - - - - - - - - - - - - +- - - - - - - - - - -
0 00 Gi 1/ 0/ 19 On 0
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0 00 Gi 1/ 0/ 20 On 0
0 00 Gi 1/ 0/ 21 On 0
0 00 Gi 1/ 0/ 22 On 0
Ti me si nce l ast por t bundl ed: 0d: 00h: 04m: 14s Gi 1/ 0/ 22
Verifying the Static Trunk Status on a D-Link Switch
The following example shows you how to correctly set the port mode and verify the channel group ports.
Command Example
swi t ch# show link_aggregation
Command: show l i nk_aggr egat i on
Li nk Aggr egat i on Al gor i t hm = I P- Sour ce
Gr oup I D : 1
Type : TRUNK
Mast er Por t : 19
Member Por t : 19- 22
Act i ve Por t : 19- 22
St at us : Enabl ed
Fl oodi ng Por t : 19
LACP Configuration on a Cisco Switch
The following example shows you how to create a channel group, when a switch plays an active role in a
LACP trunk.
Command Example Purpose
Step 1
Cat al yst# conf i g ter mi nal
Cat al yst ( conf i g) # i nt er f ace r ange gi gabi t Et her net 1/ 0/ 19- 22
Catal yst ( conf i g- i f ) # channel - gr oup 1 mode act i ve
To create a channel
group 1 with LACP-
active mode.
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The following example shows you how to create a channel group, when a switch plays a passive role in a
LACP trunk.
Command Example Purpose
Step 1
Cat al yst# conf i g ter mi nal
Cat al yst ( conf i g) # i nt er f ace r ange gi gabi t Et her net 1/ 0/ 19- 22
Catal yst ( conf i g- i f ) # channel - gr oup 1 mode passi ve
To create a channel
group 1 with LACP-
passive mode.
LACP Configuration on a D-Link Switch
The following example shows you how to create a trunk group, when a switch plays an active role in a LACP
trunk.
Command Example Purpose
Step 1
swi t ch# cr eat e l i nk_aggr egat i on gr oup_i d 1 t ype l acp
swi t ch# conf i g l i nk_aggr egat i on gr oup_i d 1 master _por t 19
por t s 19- 22 stat e enabl e
swi t ch# conf i g l acp_port 19- 22 mode act i ve
To create a trunk
group 1 with LACP-
active mode.
The following example shows you how to create a trunk group, when a switch plays a passive role in a LACP
trunk.
Command Example Purpose
Step 1
swi t ch# cr eat e l i nk_aggr egat i on gr oup_i d 1 t ype l acp
swi t ch# conf i g l i nk_aggr egat i on gr oup_i d 1 mast er_ por t 19
port s 19- 22 st at e enabl e
swi t ch# conf i g l acp_por t 19- 22 mode passi ve
To create a trunk
group 1 with LACP-
passive mode.
Note:By default, the LACP port mode is set passive in D-Link switches.
Verifying the LACP Configuration on a Cisco Switch
The following example shows you how to correctly set the port mode and verify the channel group ports.
Command Example
Catal yst # show interfaces etherchannel
- - - -
Gi gabi t Et her net 1/ 0/ 19:Por t st at e = Up Sngl - por t - Bndl Mst r Not - i n- Bndl
Channel gr oup = 1 Mode =Active Gcchange = -
Por t - channel = nul l GC = - Pseudo por t - channel = Po1
Por t i ndex = 0 Load = 0x00 Pr ot ocol = LACP
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Fl ags: S - Devi ce i s sendi ng Sl ow LACPDUs F - Devi ce i s sendi ng f ast LACPDUs.
A - Devi ce i s i n act i ve mode. P - Devi ce i s i n passi ve mode.
Local i nf or mat i on:
LACP por t Admi n Oper Port Por t
Por t Fl ags St at e Pri or i t y Key Key Number St at e
Gi 1/ 0/ 19 SA i ndep 32768 0x1 0x1 0x13 0x7D
Age of t he por t i n t he cur r ent st at e: 0d: 00h: 00m: 51s
- - - -
Gi gabi t Et her net 1/ 0/ 20:
Por t st at e = Up Sngl - por t - Bndl Mst r Not - i n- Bndl
Channel gr oup = 1 Mode =Active Gcchange = -
Por t - channel = nul l GC = - Pseudo por t - channel = Po1
Por t i ndex = 0 Load = 0x00 Pr ot ocol = LACP
Fl ags: S - Devi ce i s sendi ng Sl ow LACPDUs F - Devi ce i s sendi ng f ast LACPDUs.
A - Devi ce i s i n act i ve mode. P - Devi ce i s i n passi ve mode.
Local i nf or mat i on:
LACP por t Admi n Oper Port Por t
Por t Fl ags St at e Pri or i t y Key Key Number St at e
Gi 1/ 0/ 20 SA i ndep 32768 0x1 0x1 0x14 0x7D
Age of t he por t i n t he cur r ent st at e: 0d: 00h: 00m: 51s
- - - -
Gi gabi t Et her net 1/ 0/ 21:
Por t st at e = Up Sngl - por t - Bndl Mst r Not - i n- Bndl
Channel gr oup = 1 Mode =Active Gcchange = -
Por t - channel = nul l GC = - Pseudo por t - channel = Po1Por t i ndex = 0 Load = 0x00 Pr ot ocol = LACP
Fl ags: S - Devi ce i s sendi ng Sl ow LACPDUs F - Devi ce i s sendi ng f ast LACPDUs.
A - Devi ce i s i n act i ve mode. P - Devi ce i s i n passi ve mode.
Local i nf or mat i on:
LACP por t Admi n Oper Port Por t
Por t Fl ags St at e Pri or i t y Key Key Number St at e
Gi 1/ 0/ 21 SA i ndep 32768 0x1 0x1 0x15 0x7D
Age of t he por t i n t he cur r ent st at e: 0d: 00h: 00m: 55s
- - - -
Gi gabi t Et her net 1/ 0/ 22:
Por t st at e = Up Sngl - por t - Bndl Mst r Not - i n- Bndl
Channel gr oup = 1 Mode =Active Gcchange = -
Por t - channel = nul l GC = - Pseudo por t - channel = Po1
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Por t i ndex = 0 Load = 0x00 Pr ot ocol = LACP
Fl ags: S - Devi ce i s sendi ng Sl ow LACPDUs F - Devi ce i s sendi ng f ast LACPDUs.
A - Devi ce i s i n act i ve mode. P - Devi ce i s i n passi ve mode.
Local i nf or mat i on:
LACP por t Admi n Oper Port Por t
Por t Fl ags St at e Pri or i t y Key Key Number St at e
Gi 1/ 0/ 22 SA i ndep 32768 0x1 0x1 0x16 0x7D
Age of t he por t i n t he cur r ent st at e: 0d: 00h: 00m: 55s
- - - -
Por t - channel 1: Por t - channel 1 ( Pri mar y aggr egat or )
Age of t he Port - channel = 0d: 01h: 42m: 42s
Logi cal sl ot / por t = 10/ 1 Number of por t s = 0
HotStandBy por t = nul l
Por t st ate = Por t - channel Ag- Not - I nuse
Prot ocol = LACPPor t secur i t y = Di sabl ed
Ti me si nce l ast por t bundl ed: 0d: 01h: 42m: 38s Gi 1/ 0/ 22
Ti me si nce l ast por t Un- bundl ed: 0d: 00h: 01m: 19s Gi 1/ 0/ 22
Verifying the LACP Configuration on a D-Link Switch
The following example shows you how to correctly set the ports of a trunk group.
Command Example
swi t ch# show link_aggregation
Command: show l i nk_aggr egat i on
Li nk Aggr egat i on Al gor i t hm = I P- Sour ce
Gr oup I D : 1
Type : LACP
Mast er Por t : 19
Member Por t : 19- 22
Act i ve Port : 19- 22
St at us : Enabl ed
Fl oodi ng Por t : 21
Tot al Ent r i es : 1
The following example shows you how to correctly set the port mode.
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Command Example
swi t ch# show lacp
Command: show l acp_por t
Port Act i vi t y
- - - - - - - - - - - - -
1 Passi ve2 Passi ve
3 Passi ve
19 Passive
20 Passive
21 Passive
22 Passive
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Spanning Tree Configuration
Terminology
Cisco D-Link Description
Port Fast Edge Port Bypassing the listening and learning stages, this port changes its state from blocking
to forwarding directly to speed up Spanning tree protocol(STP) convergence.
Note:Since STP/Rapid STP (RSTP) function can only run in a single VLAN, all connections on Per-VLAN Spanning
Tree (PVST) should be located in the same VLAN.
Topology
Figure-3
Spanning Tree Configuration
Configuration
Rapid-PVST Configuration on a Cisco Switch
Command Example Purpose
Step 1
Cat al yst# conf i g ter mi nal
Cat al yst ( conf i g) # spanni ng- t r ee mode r api d- pvst
To enable STP and
choose rapid-PVST
mode.
Step 2
Cat al yst( conf i g) # spanni ng- t r ee vl an 1 pr i ori t y 4096 To change priority to4096.
RSTP Configuration on a D-Link Switch
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Command Example Purpose
Step 1
swi t ch: admi n# enabl e st p
swi t ch: admi n# conf i g st p ver si on r st p
To enable and then
choose RSTP.
Step 2
swi t ch: admi n# conf i g st p por t s 1- 22 edge t r ue
swi t ch: admi n# conf i g st p por t s 23- 24 p2p t r ue
Assume ports 1-22 are
connected to PCs or
an end terminal
device. These ports
should be set as edge
ports. The ports 23-24
which are connected
to the switch should
be set as P2P ports.
Troubleshooting Examples
Verifying RSTP Mode and Ports Status on a Cisco Switch
The following example shows you how to verify the STP protocol version, STP priority and port.
Command Example
Cat al yst # show span vl an 1
VLAN0001
Spanni ng t r ee enabl ed pr otocol r st p
Root I D Pr i or i t y 4097
Addr ess 0021. 56b0. 5c00
Thi s br i dge i s t he r oot
Hel l o Ti me 2 sec Max Age 20 sec For war d Del ay 15 sec
Br i dge I D Pr i or i t y 4097 ( pr i or i t y 4096 sys- i d- ext 1)
Addr ess 0021. 56b0. 5c00
Hel l o Ti me 2 sec Max Age 20 sec For war d Del ay 15 sec
Agi ng Ti me 300
I nt er f ace Rol e St s Cost Pr i o. Nbr Type
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gi 1/ 0/ 23 Desg FWD 4 128. 23 P2p
Gi 1/ 0/ 24 Desg FWD 4 128. 24 P2p
The following example shows you how to check STP detail information.
Command Example
Catal yst # show spanning-tree detail
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VLAN0001 i s execut i ng the r st p compat i bl e Spanni ng Tr ee pr ot ocol
Br i dge I dent i f i er has pr i or i t y 4096, sysi d 1, addr ess 0021. 56b0. 5c00
Conf i gur ed hel l o t i me 2, max age 20, f orward del ay 15, t r ansmi t hol d- count 6
We ar e the root of t he spanni ng t r ee
Topol ogy change f l ag not set , detect ed f l ag not set
Number of t opol ogy changes 4 l ast change occurr ed 00: 25: 48 ago
f r om Gi gabi t Et her net 1/ 0/ 23
Ti mes: hol d 1, t opol ogy change 35, not i f i cat i on 2
hel l o 2, max age 20, f orward del ay 15
Ti mer s: hel l o 0, t opol ogy change 0, not i f i cat i on 0, agi ng 300
Por t 23 (Gi gabi t Et her net 1/ 0/ 23) of VLAN0001 i s desi gnat ed f orwar di ng
Por t pat h cost 4, Por t pr i or i t y 128, Por t I dent i f i er 128. 23.
Desi gnated r oot has pr i or i t y 4097, addr ess 0021. 56b0. 5c00
Desi gnated br i dge has pr i or i t y 4097, addr ess 0021. 56b0. 5c00
Desi gnat ed port i d i s 128. 23, desi gnat ed pat h cost 0
Ti mer s: message age 0, f or war d del ay 0, hol d 0
Number of t r ansi t i ons t o f or war di ng st at e: 2
Li nk type i s poi nt - t o- poi nt by def aul t
BPDU: sent 839, r ecei ved 22
Por t 24 (Gi gabi t Et her net 1/ 0/ 24) of VLAN0001 i s desi gnat ed f orwar di ng
Por t pat h cost 4, Por t pr i or i t y 128, Por t I dent i f i er 128. 24.
Desi gnated r oot has pr i or i t y 4097, addr ess 0021. 56b0. 5c00
Desi gnated br i dge has pr i or i t y 4097, addr ess 0021. 56b0. 5c00
Desi gnat ed port i d i s 128. 24, desi gnat ed pat h cost 0
Ti mer s: message age 0, f or war d del ay 0, hol d 0
Number of t r ansi t i ons t o f or war di ng st at e: 1
Li nk type i s poi nt - t o- poi nt by def aul t
BPDU: sent 779, r ecei ved 65
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Verifying the RSTP Mode and Ports Status on a D-Link Switch
The following example shows you how to verify if the spanning mode is RSTP and STP is enabled.
Command Example
swi t ch: admi n# show st p
Command: show st p
STP Br i dge Gl obal Set t i ngs
- - - - - - - - - - - - - - - - - - - - - - - - - - -
STP St atus : Enabl ed
STP Versi on : RSTP
Max Age : 20
Hel l o Ti me : 2
Forward Del ay : 15
Max Hops : 2
TX Hol d Count : 6
Forwardi ng BPDU : Di sabl ed
Loopback Detect i on : Enabl ed
LBD Recover Ti me : 60NNI BPDU Addr ess : dot 1ad
The following example shows you how to verify the Root Bridge.
Command Example
swi t ch: admi n# show st p i nst ance 0
Command: show st p i nst ance 0
STP I nst ance Set t i ngs
- - - - - - - - - - - - - - - - - - - - - - - - - - -I nst ance Type : CI ST
I nst ance St at us : Enabl ed
I nst ance Pr i or i t y : 32768( Br i dge Pr i or i t y : 32768, SYS I D Ext : 0 )
STP I nst ance Operat i onal St at us
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Designated Root Bridge : 4097 /00-21-56-B0-5C-00
Ext ernal Root Cost : 20000
Regional Root Bridge : 32768/00-19-5B-12-43-00
I nt er nal Root Cost : 0
Desi gnat ed Br i dge : 4097 / 00- 21- 56- B0- 5C- 00
Root Por t : 23
Max Age : 20
Forward Del ay : 15
Last Topol ogy Change : 978
Topol ogy Changes Count : 5
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The following example shows you how to verify the role of the interface.
Command Example
swi t ch: admi n# show st p por t s 23
Command: show st p por t s 23
MSTP Por t I nf ormat i on
- - - - - - - - - - - - - - - - - - - - - -
Por t I ndex : 23 , Hel l o Ti me: 2 / 2 , Por t STP : Enabl ed , LBD : No
Ext er nal Pat hCost : Aut o/ 20000 , Edge Por t : Fal se/ No , P2P : True /Yes
Por t Rest r i ct edRol e : Fal se, Por t Rest r i ct edTCN : Fal se
Por t Forward BPDU : Di sabl ed
MSTI Desi gnat ed Br i dge I nt er nal Pat hCost Pr i o Status Role
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
0 1001/ 002156B05C00 20000 128 Forwarding Root
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Multiple Spanning Tree Configuration
Terminology
None
Compatibility between MSTOP and PVST
The following table summarizes the compatibility of PVST and MSTP functions.
Cisco
D-Link
PVST PVST+ Rapid PVST+
MSTP
No Yes (See note)Yes (reverts to
PVST+)
Note:In a MSTP and PVST+ network, the Common Spanning-Tree (CST) root must be
inside the MST backbone, and a PVST+ switch cannot connect to multiple MST regions.
Topology
Figure-4 Multiple Spanning Tree Configuration
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Configuration
Multiple Spanning Configuration on a Cisco Switch
Command Example Purpose
Step 1
Cat al yst# conf i g ter mi nalCat al yst( conf i g) # vl an 10, 20, 30
To create VLANinterface for ports 10
and 20.
Step 2
Cat al yst( conf i g) # i nt er f ace r ange gi gabi t Et her net
1/ 0/ 1- 8
Cat al yst( conf i g- i f - r ange) # swi t chpor t access vl an 10
Cat al yst ( conf i g- i f - r ange) # i nt er f ace r ange
gi gabi t Et her net 1/ 0/ 9- 16
Cat al yst( conf i g- i f - r ange) # swi t chpor t access vl an 20
To assign interfaces for
0/1/0-8 to VLAN 10 and
0/1/9-16 to VLAN 20.
Step 3
Cat al yst( conf i g) # i nt er f ace r ange gi gabi t Et her net
1/ 0/ 23- 24
Cat al yst( conf i g- i f - r ange) # swi t chpor t mode t r unkCat al yst ( conf i g- i f - r ange) # swi t chpor t t r unk al l owed
vl an 1, 10, 20
Cat al yst ( conf i g- i f - r ange) # swi t chpor t t r unk
encapsul at i on dot 1q
To set interfaces for
0/1/23-24 as the trunk
interfaces.
Step 4
Cat al yst( conf i g) # i nt er f ace vl an 10
Cat al yst ( conf i g- i f ) # i p addr ess 192. 168. 10. 1
255. 255. 255. 0
Cat al yst( conf i g) # i nt er f ace vl an 20
Cat al yst ( conf i g- i f ) # i p addr ess 192. 168. 20. 1
255. 255. 255. 0
To create two IP
interfaces on VLAN 10
and 20.
Step 5
Catal yst ( conf i g) # spanni ng- t r ee mode mstCat al yst( conf i g) # spanni ng- t r ee mst conf i gur at i on
Cat al yst ( conf i g- mst ) # name t est
Cat al yst ( conf i g- mst ) # r evi si on 1
Cat al yst ( conf i g- mst ) # i nst ance 1 vl an 10
Cat al yst ( conf i g- mst ) # i nst ance 2 vl an 20
To set up Multiple
Spanning Tree
name/revision/instance
and VLAN mapping as
the same value on all
switches.
Step 6
Cat al yst( conf i g) # spanni ng- t r ee mst 1 pr i ori t y 4096
Cat al yst( conf i g) # spanni ng- t r ee mst 2 pr i ori t y 4096
Cat al yst( conf i g) # spanni ng- t r ee mst 3 pr i ori t y 4096
To set Cisco switch as
the root switch.
Multiple Spanning Configuration on a D-Link Switch
Command Example Purpose
Step 1
swi t ch: admi n# cr eat e vl an 10 t ag 10
swi t ch: admi n# cr eat e vl an 20 t ag 20
swi t ch: admi n# conf i g vl an def aul t del et e 1- 16
To create VLAN
interfaces for ports 10,
20 and port
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swi t ch: admi n# conf i g vl an 10 add untagged 1- 8
swi t ch: admi n# conf i g vl an 10 add t agged 23- 24
swi t ch: admi n# conf i g vl an 20 add untagged 9- 16
swi t ch: admi n# conf i g vl an 20 add t agged 23- 24
assignment.
Step 2
swi t ch: admi n# cr eat e i pi f 10 192. 168. 10. 2/ 24 10
swi t ch: admi n# cr eat e i pi f 20 192. 168. 20. 2/ 24 20
To create two IP
interfaces on VLAN 10
and 20.
Step 3
swi t ch: admi n# conf i g st p mst _conf i g_i d name t estswi t ch: admi n# conf i g st p mst _conf i g_i d
r evi si on_l evel 1
swi t ch: admi n# conf i g st p ver si on mst p
swi t ch: admi n# cr eat e st p i nst ance_i d 1
swi t ch: admi n# cr eat e st p i nst ance_i d 2
swi t ch: admi n# conf i g st p i nst ance_i d 1 add_vl an 10
swi t ch: admi n# conf i g st p i nst ance_i d 2 add_vl an 20
swi t ch: admi n# enabl e st p
To set up Multiple
Spanning Tree
name/revision/instance
and VLAN mapping as
the same value on all
switches.
Troubleshooting Examples
Verifying MSTP Mode and Ports Status on a Cisco Switch
The following example shows you how to verify an MSTP instance and VLAN mapping information.
Command Example
Catal yst ( conf i g- mst ) # show pendi ng
Pendi ng MST conf i gur at i on
Name [ t est ]
Revi si on 1 I nst ances conf i gur ed 3
I nst ance Vl ans mapped- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
0 1- 9, 11- 19, 21- 4094
1 10
2 20
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Catal yst # show spanni ng- t r ee mst conf i gur at i on
Name [ t est ]
Revi si on 1 I nst ances conf i gur ed 3
I nst ance Vl ans mapped- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
0 1- 9, 11- 19, 21- 4094
1 10
2 20
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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The following example shows you how to check STP information.
Command Example
Catal yst # show spanning-tree detail
VLAN0001 i s execut i ng the r st p compat i bl e Spanni ng Tr ee pr otocolBr i dge I dent i f i er has pr i ori t y 4096, sysi d 1, addr ess 0021. 56b0. 5c00
Conf i gured hel l o t i me 2, max age 20, f orward del ay 15, t r ansmi t hol d- count 6
We ar e the root of t he spanni ng t r ee
Topol ogy change f l ag not set , detect ed f l ag not set
Number of t opol ogy changes 4 l ast change occurr ed 00: 25: 48 ago
f r om Gi gabi t Et her net 1/ 0/ 23
Ti mes: hol d 1, t opol ogy change 35, not i f i cat i on 2
hel l o 2, max age 20, f or ward del ay 15
Ti mer s: hel l o 0, t opol ogy change 0, not i f i cat i on 0, agi ng 300
Por t 23 (Gi gabi t Et her net 1/ 0/ 23) of VLAN0001 i s desi gnat ed f orwar di ng
Por t pat h cost 4, Por t pr i or i t y 128, Por t I dent i f i er 128. 23.Desi gnat ed r oot has pr i or i t y 4097, addr ess 0021. 56b0. 5c00
Desi gnat ed br i dge has pr i or i t y 4097, address 0021. 56b0. 5c00
Desi gnat ed port i d i s 128. 23, desi gnat ed pat h cost 0
Ti mer s: message age 0, f or war d del ay 0, hol d 0
Number of t r ansi t i ons t o f or war di ng st at e: 2
Li nk type i s poi nt - t o- poi nt by def aul t
BPDU: sent 839, r ecei ved 22
Por t 24 (Gi gabi t Et her net 1/ 0/ 24) of VLAN0001 i s desi gnat ed f orwar di ng
Por t pat h cost 4, Por t pr i or i t y 128, Por t I dent i f i er 128. 24.
Desi gnat ed r oot has pr i or i t y 4097, addr ess 0021. 56b0. 5c00
Desi gnat ed br i dge has pr i or i t y 4097, address 0021. 56b0. 5c00
Desi gnat ed port i d i s 128. 24, desi gnat ed pat h cost 0
Ti mer s: message age 0, f or war d del ay 0, hol d 0
Number of t r ansi t i ons t o f or war di ng st at e: 1
Li nk type i s poi nt - t o- poi nt by def aul t
BPDU: sent 779, r ecei ved 65
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The following example shows you how to check the STP status.
Command Example
Catal yst # show spanning-tree
MST0
Spanni ng t r ee enabl ed pr ot ocol mst p
Root I D Pri or i t y 4096Addr ess 0021. 56b0. 5c00
Thi s br i dge i s t he r oot
Hel l o Ti me 2 sec Max Age 20 sec For war d Del ay 15 sec
Br i dge I D Pr i or i t y 4096 ( pr i or i t y 4096 sys- i d- ext 0)
Addr ess 0021. 56b0. 5c00
Hel l o Ti me 2 sec Max Age 20 sec For war d Del ay 15 sec
I nt er f ace Rol e St s Cost Pr i o. Nbr Type
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gi 1/ 0/ 1 Desg FWD 200000 128. 1 P2p Edge
Gi 1/ 0/ 9 Desg FWD 200000 128. 9 P2p EdgeGi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p
Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p
MST1
Spanni ng t r ee enabl ed pr ot ocol mst p
Root I D Pri or i t y 4097
Addr ess 0021. 56b0. 5c00
Thi s br i dge i s t he r oot
Hel l o Ti me 2 sec Max Age 20 sec For war d Del ay 15 sec
Br i dge I D Pr i or i t y 4097 ( pr i or i t y 4096 sys- i d- ext 1)
Addr ess 0021. 56b0. 5c00
Hel l o Ti me 2 sec Max Age 20 sec For war d Del ay 15 sec
I nt er f ace Rol e St s Cost Pr i o. Nbr Type
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gi 1/ 0/ 1 Desg FWD 200000 128. 1 P2p Edge
Gi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p
Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p
MST2
Spanni ng t r ee enabl ed pr ot ocol mst p
Root I D Pri or i t y 4098Addr ess 0021. 56b0. 5c00
Thi s br i dge i s t he r oot
Hel l o Ti me 2 sec Max Age 20 sec For war d Del ay 15 sec
Br i dge I D Pr i or i t y 4098 ( pr i or i t y 4096 sys- i d- ext 2)
Addr ess 0021. 56b0. 5c00
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Hel l o Ti me 2 sec Max Age 20 sec For war d Del ay 15 sec
I nt er f ace Rol e St s Cost Pr i o. Nbr Type
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gi 1/ 0/ 9 Desg FWD 200000 128. 9 P2p Edge
Gi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p
Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p
The following example shows you how to check the MST protocol information.
Command Example
Catal yst # show spanning-tree mst
##### MST0 vl ans mapped: 1- 9, 11- 19, 21- 4094
Br i dge addr ess 0021. 56b0. 5c00 pr i or i t y 4096 ( 4096 sysi d 0)
Root t hi s swi t ch f or t he CI ST
Operat i onal hel l o t i me 2 , f orward del ay 15, max age 20, t xhol dcount 6
Conf i gur ed hel l o t i me 2 , f orward del ay 15, max age 20, max hops 20
I nt er f ace Rol e St s Cost Pr i o. Nbr Type
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gi 1/ 0/ 1 Desg FWD 200000 128. 1 P2p Edge
Gi 1/ 0/ 9 Desg FWD 200000 128. 9 P2p Edge
Gi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p
Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p
##### MST1 vl ans mapped: 10
Br i dge addr ess 0021. 56b0. 5c00 pr i or i t y 4097 ( 4096 sysi d 1)
Root t hi s swi t ch f or MST1
I nt er f ace Rol e St s Cost Pr i o. Nbr Type
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gi 1/ 0/ 1 Desg FWD 200000 128. 1 P2p Edge
Gi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p
Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p
##### MST2 vl ans mapped: 20
Br i dge addr ess 0021. 56b0. 5c00 pr i or i t y 4098 ( 4096 sysi d 2)
Root t hi s swi t ch f or MST2
I nt er f ace Rol e St s Cost Pr i o. Nbr Type
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Gi 1/ 0/ 9 Desg FWD 200000 128. 9 P2p Edge
Gi 1/ 0/ 23 Desg FWD 20000 128. 23 P2p
Gi 1/ 0/ 24 Desg FWD 20000 128. 24 P2p
Verifying the RSTP Mode and Ports Status on a D-Link Switch
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The following example shows you how to verify if the spanning mode is MSTP and STP is enabled.
Command Example
swi t ch: admi n# show st p
Command: show st p
STP Br i dge Gl obal Set t i ngs
- - - - - - - - - - - - - - - - - - - - - - - - - - -STP Status : Enabled
STP Version : MSTP
Max Age : 20
Forward Del ay : 15
Max Hops : 20
TX Hol d Count : 6
Forwardi ng BPDU : Di sabl ed
Loopback Detect i on : Enabl ed
LBD Recover Ti me : 60
NNI BPDU Addr ess : dot 1ad
The following example shows you how to check the spanning instance information.
Command Example
swi t ch: admi n# show st p i nst ance 0
Command: show st p i nst ance 0
STP I nst ance Set t i ngs
- - - - - - - - - - - - - - - - - - - - - - - - - - -
I nst ance Type : CI ST
I nst ance St at us : Enabl ed
I nst ance Pr i or i t y : 32768( Br i dge Pr i or i t y : 32768, SYS I D Ext : 0 )
STP I nst ance Operat i onal St at us
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Desi gnat ed Root Br i dge : 32768/ 00- 19- 5B- 12- 43- 00
Exter nal Root Cost : 0
Regi onal Root Br i dge : 32768/ 00- 19- 5B- 12- 43- 00
I nt er nal Root Cost : 0
Desi gnat ed Br i dge : 32768/ 00- 19- 5B- 12- 43- 00
Root Por t : None
Max Age : 20
Forward Del ay : 15
Last Topol ogy Change : 74717
Topol ogy Changes Count : 22
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The following example shows you how to check the STP instance and VLAN mapping.
Command Example
swi t ch: admi n# show st p mst _conf i g_i d
Command: show st p mst _conf i g_i d
Cur r ent MST Conf i gur at i on I dent i f i cat i on
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Conf i gur at i on Name : t est Revi si on Level : 1
MSTI I D Vi d l i st
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
CI ST 1- 9, 11- 19, 21- 4094
1 10
2 20
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Open Shortest Path Fast OSPF) Configuration
Terminology
None
Topology Single OSPF Area
Figure-5 Single OSPF Area Configuration
Configuration
OSPF Configuration on a Cisco Switch - 1
Command Example Purpose
Step 1
Cat al yst# conf i g ter mi nal
Cat al yst ( conf i g) # i nt er f ace gi gabi t Et her net 1/ 0/ 23
Cat al yst ( conf i g- i f ) # no swi t chpor t
Cat al yst ( conf i g- i f ) # i p addr ess 192. 168. 20. 2
255. 255. 255. 0
Cat al yst ( conf i g- i f ) # no shut
Cat al yst( conf i g- i f ) # exi t
Cat al yst ( conf i g) # i nt er f ace gi gabi t Et her net 1/ 0/ 22
Cat al yst ( conf i g- i f ) # no swi t chpor t
Cat al yst ( conf i g- i f ) # i p addr ess 192. 168. 30. 1
255. 255. 255. 0Cat al yst ( conf i g- i f ) # no shut down
Cat al yst( conf i g- i f ) # exi t
To create two IP
interfaces -
(192.168.20.0/
192.168.30.0)
Step 2
Cat al yst ( conf i g) # i p r out i ng
Cat al yst ( conf i g) # r out er ospf 100
To enable OSPF on
specific interfaces and
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Cat al yst ( conf i g- r out er ) # r out er - i d 192. 168. 20. 1
Cat al yst ( conf i g- r out er ) # net wor k 192. 168. 20. 0 0. 0. 0. 255
area 0
Cat al yst ( conf i g- r out er ) # net wor k 192. 168. 30. 0 0. 0. 0. 255
area 0
set up router ID.
OSPF Configuration on a Cisco Switch - 2
Command Example Purpose
Step 1
Cat al yst# conf i g ter mi nal
Cat al yst ( conf i g) # i nt er f ace gi gabi t Et her net 1/ 0/ 23
Cat al yst ( conf i g- i f ) # no swi t chpor t
Cat al yst ( conf i g- i f ) # i p addr ess 192. 168. 40. 2
255. 255. 255. 0
Cat al yst ( conf i g- i f ) # no shut
Cat al yst( conf i g- i f ) # exi t
Cat al yst ( conf i g) # i nt er f ace gi gabi t Et her net 1/ 0/ 22
Cat al yst ( conf i g- i f ) # no swi t chpor t
Cat al yst ( conf i g- i f ) # i p addr ess 192. 168. 30. 1
255. 255. 255. 0
Cat al yst ( conf i g- i f ) # no shut down
Cat al yst( conf i g- i f ) # exi t
To create two IP
interfaces (192.168.30.0 /
192.168.40.0).
Step 2
Cat al yst ( conf i g) # i p r out i ng
Cat al yst ( conf i g) # r out er ospf 100
Cat al yst ( conf i g- r out er ) # r out er - i d 192. 168. 30. 1
Cat al yst ( conf i g- r out er ) # net work 192. 168. 30. 0 0. 0. 0. 255
ar ea 0
Cat al yst ( conf i g- r out er ) # net work 192. 168. 40. 0 0. 0. 0. 255
ar ea 0
To enable OSPF on
specific interfaces and
set up router ID.
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OSPF Configuration on a D-Link Switch - 1
Command Example Purpose
Step 1
swi t ch: admi n# cr eat e vl an 10 t ag 10
swi t ch: admi n# cr eat e vl an 20 t ag 20
swi t ch: admi n# conf i g vl an def aul t del et e 1- 16
swi t ch: admi n# conf i g vl an 10 add untagged 1- 8
swi t ch: admi n# conf i g vl an 20 add untagged 9- 16, 23
To create VLAN
interfaces for ports 10
and 20 and assign
relative ports to each
VLAN.
Step 2
swi t ch: admi n# cr eat e i pi f 10 192. 168. 10. 1/ 24 10
swi t ch: admi n# cr eat e i pi f 20 192. 168. 20. 1/ 24 20
To create two IP
interfaces on VLAN 10
and 20.
Step 3
conf i g ospf r out er _i d 192. 168. 10. 1
swi t ch: admi n# conf i g ospf i pi f 10 ar ea 0. 0. 0. 0 st at e
enabl e
swi t ch: admi n# conf i g ospf i pi f 20 ar ea 0. 0. 0. 0 st at eenabl e
swi t ch: admi n# enabl e ospf
To enable OSPF on
specific interfaces and
set up router ID.
OSPF Configuration on a D-Link Switch - 2
Command Example Purpose
Step 1
swi t ch: admi n# cr eat e vl an 40 t ag 40
swi t ch: admi n# cr eat e vl an 50 t ag 50
swi t ch: admi n# conf i g vl an def aul t del ete 1- 16swi t ch: admi n# conf i g vl an 40 add untagged 1- 8, 24
swi t ch: admi n# conf i g vl an 50 add untagged 9- 16
To create VLAN
interfaces for ports 40
and 50 and assignrelative ports to each
VLAN.
Step 2
swi t ch: admi n# cr eat e i pi f 40 192. 168. 10. 1/ 24 40
swi t ch: admi n# cr eat e i pi f 50 192. 168. 20. 1/ 24 50
To create two IP
interfaces on VLAN 40
and 50.
Step 3
conf i g ospf r out er _i d 192. 168. 40. 1
swi t ch: admi n# conf i g ospf i pi f 40 ar ea 0. 0. 0. 0 st at e
enabl e
swi t ch: admi n# conf i g ospf i pi f 50 ar ea 0. 0. 0. 0 st at e
enabl e
swi t ch: admi n# enabl e ospf
To enable OSPF on
specific interfaces and
set up router ID.
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Troubleshooting Examples
Verifying OSPF Information on a Cisco Switch
The following example shows you how to check OSPF information.
Command Example
Catal yst # show i p ospf
Rout i ng Process "ospf 100" with ID 192.168.20.1
St ar t t i me: 00: 01: 21. 528, Ti me el apsed: 00: 00: 52. 454
Suppor t s onl y si ngl e TOS(TOS0) r out es
Suppor t s opaque LSA
Suppor t s Li nk- l ocal Si gnal i ng ( LLS)
Suppor t s ar ea t r ansi t capabi l i t y
Rout er i s not or i gi nat i ng r out er - LSAs wi t h maxi mum met r i c
I ni t i al SPF schedul e del ay 5000 msecs
Mi ni mumhol d t i me bet ween t wo consecut i ve SPFs 10000 msecs
Maxi mum wai t t i me bet ween t wo consecut i ve SPFs 10000 msecs
I ncr ement al - SPF di sabl ed
Mi ni mum LSA i nt er val
*Mar 1 00: 02: 12. 623: %OSPF- 5- ADJ CHG: Pr ocess 100, Nbr 192. 168. 30. 1 on
Gi gabi t Et her net1/ 0/ 22 f r om LOADI NG t o FULL, Loadi ng Done5 secs
Mi ni mumLSA ar r i val 1000 msecs
LSA group paci ng t i mer 240 secs
I nt erf ace f l ood paci ng t i mer 33 msecs
Ret r ansmi ssi on paci ng t i mer 66 msecs
Number of exter nal LSA 0. Checksum Sum 0x000000
Number of opaque AS LSA 0. Checksum Sum 0x000000
Number of DCbi t l ess exter nal and opaque AS LSA 0
Number of DoNot Age ext er nal and opaque AS LSA 0Number of areas i n t hi s r out er i s 1. 1 normal 0 st ub 0 nssa
Number of ar eas t r ansi t capabl e i s 0
Ext er nal f l ood l i st l engt h 0
I ETF NSF hel per suppor t enabl ed
Ci sco NSF hel per suppor t enabl ed
Ref erence bandwi dth uni t i s 100 mbps
Area BACKBONE( 0)
Number of i nt er f aces i n t hi s ar ea i s 2
Ar ea has no aut hent i cat i on
SPF al gori t hm l ast execut ed 00: 00: 37. 984 ago
SPF al gori t hm execut ed 2 t i mes
Ar ea r anges ar eNumber of LSA 8. Checksum Sum 0x043353
Number of opaque l i nk LSA 0. Checksum Sum 0x000000
Number of DCbi t l ess LSA 4
Number of i ndi cat i on LSA 0
Number of DoNot Age LSA 0
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Fl ood l i st l engt h 0
The following example shows you how to verify if the OSPF neighbors are established.
Command Example
Catal yst # show i p ospf nei ghbor
Nei ghbor I D Pr i St ate Dead Ti me Address I nt er f ace
192.168.30.1 1 FULL/DR 00: 00: 38 192. 168. 30. 2 Gi gabi t Et hernet 1/ 0/ 22
192.168.10.1 1 FULL/DR 00: 00: 36 192. 168. 20. 1 Gi gabi t Et hernet 1/ 0/ 23
The following example shows you how to verify if the route entries are learnt by the switches.
Command Example
Catal yst # show i p rout e
Codes: C - connect ed, S - st at i c, R - RI P, M - mobi l e, B - BGP
D - EI GRP, EX - EI GRP ext er nal , O - OSPF, I A - OSPF i nt er areaN1 - OSPF NSSA ext er nal t ype 1, N2 - OSPF NSSA ext ernal t ype 2
E1 - OSPF ext ernal t ype 1, E2 - OSPF ext ernal t ype 2
i - I S- I S, su - I S- I S summar y, L1 - I S- I S l evel - 1, L2 - I S- I S l evel - 2
i a - I S- I S i nt er ar ea, * - candi dat e def aul t , U - per - user st at i c rout e
o - ODR, P - per i odi c downl oaded st at i c r out e
Gat eway of l ast r esor t i s not set
C 192. 168. 30. 0/ 24 i s di r ect l y connect ed, Gi gabi t Et her net 1/ 0/ 22
O 192.168.10.0/24 [ 110/ 2] vi a 192. 168. 20. 1, 00: 02: 07, Gi gabi t Et her net 1/ 0/ 23
O 192.168.40.0/24 [ 110/ 2] vi a 192. 168. 30. 2, 00: 02: 07, Gi gabi t Et her net 1/ 0/ 22
C 192. 168. 20. 0/ 24 i s di r ect l y connect ed, Gi gabi t Et her net 1/ 0/ 23
O 192.168.50.0/24 [ 110/ 3] vi a 192. 168. 30. 2, 00: 02: 07, Gi gabi t Et her net 1/ 0/ 22
The following example shows you how to check the OSPF interface status.
Command Example
Cat al yst # show i p ospf i nt er f ace
Gi gabi t Et her net 1/ 0/ 22 i s up, l i ne pr ot ocol i s up (connect ed)
I nt er net Addr ess 192. 168. 30. 1/ 24, Ar ea 0
Process I D 100, Rout er I D 192. 168. 20. 1, Net work Type BROADCAST, Cost : 1
Tr ansmi t Del ay i s 1 sec, St at e BDR, Pr i or i t y 1
Desi gnat ed Rout er ( I D) 192. 168. 30. 1, I nt er f ace addr ess 192. 168. 30. 2
Backup Desi gnat ed rout er ( I D) 192. 168. 20. 1, I nt er f ace addr ess 192. 168. 30. 1
Ti mer i nt er val s conf i gured, Hel l o 10, Dead 40, Wai t 40, Ret r ansmi t 5
oob- r esync t i meout 40
Hel l o due i n 00: 00: 01
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Suppor t s Li nk- l ocal Si gnal i ng ( LLS)
Ci sco NSF hel per suppor t enabl ed
I ETF NSF hel per suppor t enabl ed
I ndex 2/ 2, f l ood queue l engt h 0
Next 0x0( 0) / 0x0( 0)
Last f l ood scan l engt h i s 1, maxi mum i s 1
Last f l ood scan t i me i s 0 msec, maxi mumi s 0 msec
Nei ghbor Count i s 1, Adj acent nei ghbor count i s 1
Adj acent wi t h nei ghbor 192. 168. 30. 1 ( Desi gnated Rout er )
Suppr ess hel l o f or 0 nei ghbor ( s)
Gi gabi t Et her net 1/ 0/ 23 i s up, l i ne pr ot ocol i s up (connect ed)
I nt er net Addr ess 192. 168. 20. 2/ 24, Ar ea 0
Process I D 100, Rout er I D 192. 168. 20. 1, Net work Type BROADCAST, Cost : 1
Tr ansmi t Del ay i s 1 sec, St at e BDR, Pr i or i t y 1
Desi gnat ed Rout er ( I D) 192. 168. 10. 1, I nt er f ace addr ess 192. 168. 20. 1
Backup Desi gnat ed rout er ( I D) 192. 168. 20. 1, I nt er f ace addr ess 192. 168. 20. 2
Ti mer i nt er val s conf i gured, Hel l o 10, Dead 40, Wai t 40, Ret r ansmi t 5
oob- r esync t i meout 40
Hel l o due i n 00: 00: 07
Suppor t s Li nk- l ocal Si gnal i ng ( LLS)Ci sco NSF hel per suppor t enabl ed
I ETF NSF hel per suppor t enabl ed
I ndex 1/ 1, f l ood queue l engt h 0
Next 0x0( 0) / 0x0( 0)
Last f l ood scan l engt h i s 1, maxi mum i s 5
Last f l ood scan t i me i s 0 msec, maxi mumi s 0 msec
Nei ghbor Count i s 1, Adj acent nei ghbor count i s 1
Adj acent wi t h nei ghbor 192. 168. 10. 1 ( Desi gnated Rout er )
Suppr ess hel l o f or 0 nei ghbor ( s)
Verifying the OSPF Status on a D-Link Switch
The following example shows you how to verify if the OSPF is enabled on correct interfaces.
Command Example
swi t ch: admi n# show ospf
Command: show ospf
OSPF Rout er I D : 192. 168. 10. 1
St at e : Enabl ed
OSPF I nt er f ace Set t i ngs
I nt er f ace I P Addr ess Ar ea I D St at e Li nk Met r i c
St at us
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Syst em 10. 90. 90. 90/ 8 0. 0. 0. 0 Di sabl ed Li nk Up 1
10 192.168.10.1/24 0.0.0.0 Enabled Link Up 1
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20 192.168.20.1/24 0.0.0.0 Enabled Link Up 1
Tot al Ent r i es : 3
OSPF Ar ea Set t i ngs
Ar ea I D Type Stub I mpor t Summary LSA Stub Def aul t Cost Transl at e
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
0. 0. 0. 0 Nor mal None None None
Tot al Ent r i es : 1
Vi r t ual I nt er f ace Conf i gur at i on
Tr ansi t Vi r t ual Hel l o Dead Aut hent i cat i on Li nk
Ar ea I D Nei ghbor Rout er I nt er val I nt er val St at us
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Tot al Ent r i es : 0
OSPF Ar ea Aggr egat i on Set t i ngs
Ar ea I D Aggr egated LSDB Adver t i se
Net wor k Address Type
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Tot al Ent r i es : 0
OSPF Host Rout e Set t i ngs
Host Addr ess Met r i c Ar ea I D
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Tot al Ent r i es : 0
The following example shows you how to verify if the OSPF neighbor is established.
Command Example
swi t ch: admi n# show ospf nei ghbor
Command: show ospf nei ghbor
I P Addr ess of Rout er I D of Nei ghbor Nei ghborNei ghbor Nei ghbor Pr i or i t y St at e
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
192. 168. 20. 2 192. 168. 20. 2 1 Ful l
Tot al Ent r i es : 1
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The following example shows you how to check the OSPF interface information.
Command Example
swi t ch: admi n# show ospf i pi f 10
Command: show ospf i pi f 10
I nt erf ace Name: 10 I P Addr ess: 192. 168. 10. 1/ 24 ( Li nk Up)
Net wor k Medi um Type: BROADCAST Met r i c: 1
Ar ea I D: 0. 0. 0. 0 Admi ni st r at i ve St at e: Enabl ed
Pr i ori t y: 1 DR St at e: DR
DR Addr ess: 192. 168. 10. 1 Backup DR Addr ess: None
Hel l o I nt er val : 10 Dead I nt er val : 40
Tr ansmi t Del ay: 1 Ret r ansmi t Ti me: 5
Aut hent i cat i on: None
Passi ve Mode: Di sabl ed
Tot al Ent r i es : 1
The following example shows you how to verify all the route entries that are learnt by the switches.
Command Example
swi t ch: admi n# show i prout e
Command: show i pr out e
Rout i ng Tabl e
I P Addr ess/ Netmask Gateway I nt er f ace Cost Protocol
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
10. 0. 0. 0/ 8 0. 0. 0. 0 Syst em 1 Local
192. 168. 10. 0/ 24 0. 0. 0. 0 10 1 Local
192. 168. 20. 0/ 24 0. 0. 0. 0 20 1 Local
192.168.30.0/24 192.168.20.2 20 2 OSPF
192.168.40.0/24 192.168.20.2 20 3 OSPF
192.168.50.0/24 192.168.20.2 20 4 OSPF
Tot al Entr i es : 6
Tot al Entr i es : 1
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Topology Single OSPF Area
Figure-6 Multiple OSPF Areas Configuration
Configuration
OSPF Configuration on Cisco Switch 1
Command Example Purpose
Step 1
Swi t ch#conf i g ter mi nal
Swi t ch( conf i g) #i nt er f ace gi gabi t Et her net 1/ 0/ 23
Swi t ch( conf i g- i f ) #no swi t chpor t
Swi t ch( conf i g- i f ) #i p addr ess 192. 168. 20. 2 255. 255. 255. 0
Swi t ch( conf i g- i f ) #no shut
Swi t ch( conf i g- i f ) #exi t
Swi t ch( conf i g) #i nt er f ace gi gabi t Et her net 1/ 0/ 22
Swi t ch( conf i g- i f ) #no swi t chpor t
Swi t ch( conf i g- i f ) #i p addr ess 192. 168. 30. 1 255. 255. 255. 0
Swi t ch( conf i g- i f ) #no shut down
Swi t ch( conf i g- i f ) #exi t
Create two IP interfaces
(192.168.20.0 /
192.168.30.0)
Step 2
Swi t ch( conf i g) #i nt er f ace l oopback 0
Swi t ch( conf i g- i f ) #i p addr ess 10. 0. 0. 1 255. 255. 255. 255
Swi t ch( conf i g- i f ) #no shut
Create a Loopback
interface for router ID.
Cisco router prefers the
address of loopback
interface over the
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address of all physical
interfaces while
choosing router ID.
Step 3
Swi t ch( conf i g) #i p r out i ng
Swi t ch( conf i g) #r out er ospf 100
Swi t ch( conf i g- r out er ) #net work 192. 168. 20. 0 0. 0. 0. 255 area
1
Swi t ch( conf i g- r out er ) #net work 192. 168. 30. 0 0. 0. 0. 255 area0
Enable OSPF on specific
interfaces.
OSPF Configuration on Cisco Switch 2
Command Example Purpose
Step 1
Swi t ch#conf i g ter mi nal
Swi t ch( conf i g) #i nt er f ace gi gabi t Et her net 1/ 0/ 23
Swi t ch( conf i g- i f ) #no swi t chpor t
Swi t ch( conf i g- i f ) #i p addr ess 192. 168. 40. 2 255. 255. 255. 0
Swi t ch( conf i g- i f ) #no shutSwi t ch( conf i g- i f ) #exi t
Swi t ch( conf i g) #i nt er f ace gi gabi t Et her net 1/ 0/ 22
Swi t ch( conf i g- i f ) #no swi t chpor t
Swi t ch( conf i g- i f ) #i p addr ess 192. 168. 30. 1 255. 255. 255. 0
Swi t ch( conf i g- i f ) #no shut down
Swi t ch( conf i g- i f ) #exi t
Create two IP interfaces(192.168.30.0 /
192.168.40.0)
Step 2
Swi t ch( conf i g) #i nt er f ace l oopback 0
Swi t ch( conf i g- i f ) #i p addr ess 10. 0. 0. 2 255. 255. 255. 255Swi t ch( conf i g- i f ) #no shut
Create a Loopback
interface for router ID.
Cisco router prefers the
address of loopback
interface over the
address of all physical
interfaces while
choosing router ID.
Step 3
Swi t ch( conf i g) #i p r out i ng
Swi t ch( conf i g) #r out er ospf 100
Swi t ch( conf i g- r out er ) #r out er - i d 192. 168. 30. 1
Swi t ch( conf i g- r out er ) #net work 192. 168. 30. 0 0. 0. 0. 255 area
0
Swi t ch( conf i g- r out er ) #net work 192. 168. 40. 0 0. 0. 0. 255 area
2
Enable OSPF on specific
interfaces and set up
router ID
OSPF Configuration on D-Link Switch 1
Command Example Purpose
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Step 1
DGS- 3627: admi n#cr eat e vl an 10 t ag 10
DGS- 3627: admi n#cr eat e vl an 20 t ag 20
DGS- 3627: admi n#conf i g vl an def aul t del ete 1- 16
DGS- 3627: admi n#conf i g vl an 10 add unt agged 1- 8
DGS- 3627: admi n#conf i g vl an 20 add unt agged 9- 16, 23
Create VLAN 10 and
20 and assign relative
ports to each VLAN
Step 2
DGS- 3627: admi n#cr eat e i pi f 10 192. 168. 10. 1/ 24 10
DGS- 3627: admi n#cr eat e i pi f 20 192. 168. 20. 1/ 24 20
Create two IP
interfaces on VLAN 10
and 20
Step 3
DGS- 3627: admi n#conf i g ospf r out er_i d 192. 168. 10. 1
DGS- 3627: admi n#cr eat e ospf area 0. 0. 0. 1 t ype normal
DGS- 3627: admi n#conf i g ospf i pi f 10 area 0. 0. 0. 1 st ate enabl e
DGS- 3627: admi n#conf i g ospf i pi f 20 area 0. 0. 0. 1 st ate enabl e
DGS- 3627: admi n#enabl e ospf
Enable OSPF on
specific interfaces and
assign interfaces on
area 1.
OSPF Configuration on D-Link Switch - 2
Command Example Purpose
Step 1
DGS- 3627: admi n#cr eate vl an 40 t ag 40
DGS- 3627: admi n#cr eate vl an 50 t ag 50
DGS- 3627: admi n#conf i g vl an def aul t del ete 1- 16
DGS- 3627: admi n#conf i g vl an 40 add unt agged 1- 8, 24
DGS- 3627: admi n#conf i g vl an 50 add untagged 9- 16
Create VLAN 40 and 50
and assign relative
ports to each VLAN
Step 2
DGS- 3627: admi n#cr eat e i pi f 40 192. 168. 10. 1/ 24 40
DGS- 3627: admi n#cr eat e i pi f 50 192. 168. 20. 1/ 24 50
Create two IP interfaces
on VLAN 40 and 50
Step 3
DGS- 3627: admi n#conf i g ospf r out er_i d 192. 168. 40. 1
DGS- 3627: admi n#cr eat e ospf area 0. 0. 0. 2 t ype normal
DGS- 3627: admi n#conf i g ospf i pi f 40 area 0. 0. 0. 2 st ate enabl e
DGS- 3627: admi n#conf i g ospf i pi f 50 area 0. 0. 0. 2 st ate enabl e
DGS- 3627: admi n#enabl e ospf
Enable OSPF on
specific interfaces and
assign interfaces on
area 2.
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Troubleshooting Examples
Verifying OSPF Information on a Cisco Switch
The following example shows you how to check OSPF detailed information on Cisco Switch. Cisco Switch
uses loopback interface to be Router ID and Area 1 should be created.
Command Example
Catal yst # show ip ospf
Rout i ng Pr ocess " ospf 100" wi t h I D 10.0.0.1
St ar t t i me: 00: 01: 21. 528, Ti me el apsed: 4d19h
Suppor t s onl y si ngl e TOS( TOS0) r out es
Suppor t s opaque LSA
Suppor t s Li nk- l ocal Si gnal i ng ( LLS)
Suppor t s ar ea t r ansi t capabi l i t y
I t i s an ar ea bor der r out er
Rout er i s not or i gi nat i ng r out er - LSAs wi t h maxi mum met r i c
I ni t i al SPF schedul e del ay 5000 msecsMi ni mumhol d t i me bet ween t wo consecut i ve SPFs 10000 msecs
Maxi mum wai t t i me bet ween t wo consecut i ve SPFs 10000 msecs
I ncr ement al - SPF di sabl ed
Mi ni mum LSA i nt er val 5 secs
Mi ni mumLSA ar r i val 1000 msecs
LSA group paci ng t i mer 240 secs
I nt erf ace f l ood paci ng t i mer 33 msecs
Ret r ansmi ssi on paci ng t i mer 66 msecs
Number of exter nal LSA 0. Checksum Sum 0x000000
Number of opaque AS LSA 0. Checksum Sum 0x000000
Number of DCbi t l ess ext ernal and opaque AS LSA 0
Number of DoNot Age ext er nal and opaque AS LSA 0Number of ar eas i n thi s r out er i s 2. 2 normal 0 st ub 0 nssa
Number of ar eas t r ansi t capabl e i s 0
Ext er nal f l ood l i st l engt h 0
I ETF NSF hel per suppor t enabl ed
Ci sco NSF hel per suppor t enabl ed
Ref erence bandwi dth uni t i s 100 mbps
Area BACKBONE( 0)
Number of i nt er f aces i n t hi s ar ea i s 1
Ar ea has no aut hent i cat i on
SPF al gori t hm l ast execut ed 00: 27: 19. 763 ago
SPF al gori t hm execut ed 14 t i mes
Ar ea r anges ar eNumber of LSA 8. Checksum Sum 0x07E502
Number of opaque l i nk LSA 0. Checksum Sum 0x000000
Number of DCbi t l ess LSA 1
Number of i ndi cat i on LSA 0
Number of DoNot Age LSA 0
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Fl ood l i st l engt h 0
Area 1
Number of interfaces in this area is 1
Ar ea has no aut hent i cat i on
SPF al gori t hm l ast execut ed 00: 33: 43. 525 ago
SPF al gori t hm execut ed 8 t i mes
Ar ea r anges ar e
Number of LSA 6. Checksum Sum 0x036A95
Number of opaque l i nk LSA 0. Checksum Sum 0x000000
Number of DCbi t l ess LSA 1
Number of i ndi cat i on LSA 0
Number of DoNot Age LSA 0
Fl ood l i st l engt h 0
Checking OSPF Status on D-Link Switch
The following example shows you how to verify if the OSPF is enabled on correct interfaces and if the area
assignment is correct.
Command Example
swi t ch: admi n# show ospf
Command: show ospf
OSPF Rout er I D : 192. 168. 10. 1
St at e : Enabl ed
OSPF I nt er f ace Set t i ngs
I nt er f ace I P Addr ess Ar ea I D St at e Li nk Met r i c
St at us- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Sys tem 10. 90. 90. 90/ 8 0. 0. 0. 0 Di sabl ed Li nk Up 1
10 192.168.10.1/24 0.0.0.1 Enabled Link Up 1
20 192.168.20.1/24 0.0.0.1 Enabled Link Up 1
Tot al Ent r i es : 3
OSPF Ar ea Set t i ngs
Ar ea I D Type Stub I mpor t Summary LSA Stub Def aul t Cost Tr ansl ate
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
0. 0. 0. 0 Nor mal None None None0. 0. 0. 1 Nor mal None None None
Tot al Ent r i es : 2
Vi r t ual I nt er f ace Conf i gur at i on
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Tr ansi t Vi r t ual Hel l o Dead Aut hent i cat i on Li nk
Ar ea I D Nei ghbor Rout er I nt er val I nt er val St at us
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Tot al Ent r i es : 0
OSPF Ar ea Aggr egat i on Set t i ngs
Ar ea I D Aggr egated LSDB Adver t i se
Net wor k Address Type
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Tot al Ent r i es : 0
OSPF Host Rout e Set t i ngs
Host Addr ess Metr i c Ar ea I D
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Tot al Ent r i es : 0
The following example shows you how to verify if the OSPF interface information is correct.
Command Example
swi t ch: admi n# show ospf ipif 10
Command: show ospf i pi f 10
I nt er f ace Name: 10 I P Addr ess: 192. 168. 10. 1/ 24 ( Li nk Up)
Net wor k Medi um Type: BROADCAST Met r i c: 1
Area ID: 0.0.0.1 Admi ni st r at i ve St at e: Enabl edPr i or i t y: 1 DR St at e: DR
DR Addr ess: 192. 168. 10. 1 Backup DR Addr ess: None
Hel l o I nt er val : 10 Dead I nt er val : 40
Tr ansmi t Del ay: 1 Ret r ansmi t Ti me: 5
Aut hent i cat i on: None
Passi ve Mode: Di sabl ed
Tot al Entr i es : 1
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