cisco dcn solution for network operations

Copyright 2000, Cisco Systems, Inc. All rights reserved. Printed in USA.1334_05_2000_c1_Sec4.scr

1 2000, Cisco Systems, Inc. 33011334_05_2000_c1_Sec4

Cisco DCN Solution forCisco DCN Solution forNetwork OperationsNetwork Operations


AgendaAgenda

What is a DCN ?

Network Element Evolution

DCN Evolution

Cisco DCN Solution Platforms

Cisco IOS Telco Image

Cisco IOS Telco Features

Summary



IP overFR, ATM, T1

X25

OSI

OperationalSupport Systems

(OSS)SONET

Ring

Network Elements (NEs) Data Communications Network (DCN)

Workstation

Mainframeor Mini

Voice Switch, DigitalCross-Connect Switch,SS7 STP, SCP, Frame

Relay Switch

SLC, IDLC,FITL, FOTS

Alarm Units

ISR 3303

ISR 3303

ADM GNE

Switch

MUX

Multiple Overlay Networks Rapid SONET/SDH growth Changing technologies

OSS to NE ConnectivityOSS to NE Connectivity

Mediationif required

Network Operations Center (NOC)

What is the DCN ?What is the DCN ?What is the DCN ?


Network ElementNetwork Element LegacyLegacy

Sonet/SDH ADMsSonet/SDH ADMs

Large Cross ConnectsLarge Cross Connects

ADSLADSL

X.25X.25

NewNew

OSI/IPOSI/IP

Digital Loop CarrierDigital Loop Carrier

HDSLHDSL

Test HeadsTest Heads

DSO Cross ConnectsDSO Cross Connects

X.25X.25

X.25X.25

X.25X.25

X.25X.25

AsyncAsync

OSI/IPOSI/IP

OSI/IPOSI/IP

IPIP

IPIP

IPIP

Network Element EvolutionNetwork Element Evolution



The Network TrendThe Network Trend

OSS & NEs are migrating to EthernetInterfaces

OSSs & NEs are implementing IPand OSI stacks


Network Element Features DrivingNetwork Element Features Drivingthe Changethe Change

Remote provisioning

Software download

Remote backups

Remote login



DCN EvolutionDCN Evolution

Legacy DCN

Phase 1: Backbone Conversion withTunneling Techniques

Phase 2: OSS Migrate to Ethernet

Phase 3: Network Elements migrateto Ethernet

DCN Architecture


Legacy DCN Network

NMAFujitsu FLM 150

X25 Cloud

X25 PadX25 Switch X25 Switch X25 Pad

X25 SVC

NMA

AI SwitchFujitsu FLM 150

X25 PVC

Datakit

X25Datakit Backbone

Datakit

DSC Cross Connect

AS

YN

C

CO SAM

AI Switch

X25

X25

Fujitsu FLM 150

Fujitsu FLM 150

DSC Cross Connect

X25 PVC

ASYNC

X25

OSS are X25 basedNE management interfaces are x25 or asyncDCN core is x25 switches or vendor specific



IP Cloud

OSS

BX25 BX25

Class 5

Billing OSS polling a Class 5 Switch

TCP(BX25)/IP

Serial 1/0Serial 3/0

Phase 1: Tunneling X25Phase 1: Tunneling X25

RFC 1613

X25 Packet is being tunneled across the network in TCP/IP

Complete X25 packet is encapsulated in TCP/IP and forwarded

Example shows BX25 which is a variant of X25

Network Management tools same as the Internet or customer usernetwork

Same Hardware and Software as Internet or Customer Network


OSS

Sonet ADM

X25 SVC

X25TCP/IP

X25 ProtocolTranslation

Modem Bank

IP

TCP Session

Phase 2: Protocol TranslationPhase 2: Protocol Translation

OSS migrates to a TCP/IP

No longer tunneling

Access Router in CO is terminating TCP sessionand starting up an X25 session

Cisco term is protocol translation

Industry term is mediation



Phase 3: Ethernet Based NetworkPhase 3: Ethernet Based NetworkElementsElements

OSS:TCP/IP

HDSL Shelf

TCP/IPModem Bank

IP/CLNS

OSS:OSI

TCP/IP

SonetADM

OSI

Class 5

TCP/IPOSI

Class 5 switches will move towards IPSonet/SDH equipment will support OSIOther CO equipment will move towards IP


NMA

NMA

OSS

BackboneDistribution CO AccessCentral Office

7200/4700

Cat5xxx/1924

4500/7500/GSR

Cat1924/2600/3640/3662/Cat2924

OSS

NOC

Cat5xxx/1924

DCN ArchitectureDCN Architecture



Summary DCN EvolutionSummary DCN Evolution

Deploying IP and OSI Intranets: ISIS, OSPF,BGP4+, XOT, ISO-IGRP

X25 is being eliminated from the Network

async will continue to be used for craft ports

Service Providers DCNs are focused onEthernet connectivity

Service Providers DCNs are quickly adoptingthe Internet Technology and Cost Model


3662-DC-CO2600-DCSeries

Max

imum

Pla

tfor

m C

apab

ility

2 Fast Ethernet6 Ethernet36 Async12 Sync3 OSI Areas

8 Fast Ethernet26 Ethernet192 Async48 Sync12 OSI Areas

2 Fast Ethernet24 Ethernet

TimeCatalyst1924-DC

Catalyst2924-DC

2 Slots24 10/100

DCN Solution Platform CapabilityDCN Solution Platform Capability



Cisco 26xx-DC for Small SitesCisco 26xx-DC for Small Sites

1 RU chassis One network

module slot Ports: up to 32

async, 8 sync Two WAN Interface

Card (WIC) slots Ethernet and 10/100

Fast Ethernet models 48v DC power NEBS Level 3 compliantNEBS Level 3 compliant CLEI codedCLEI coded 11.5 inches deep11.5 inches deep


Catalyst 1924-DC Catalyst 2924M-DC

NewNew

Catalyst 1900/2900 SeriesCatalyst 1900/2900 Series

24-switched 10BaseT ports

Up to 8192 MAC addresses

Two, fixed 100BaseT portson all models

- Two 100BaseTX ports

9 Deep, NEBS Level 3

CLEI Coded

-48 volt, dual DC feeds

24 10BaseT/100BaseTX ports

8192 MAC addresses

Two slots to accommodateavailable modules

ISL/802.1Q VLAN trunkingon all ports

NEBS Level 3, -48 volt dualDC



Catalyst 2900 XL ModulesCatalyst 2900 XL Modules

ISL/802.1Q VLAN support

4-port 10/100 TX module

2-port 100BaseFX module

4-port 100BaseFX module

GigE GBIC module

ATM (OC3) module

ISL/802.1Q VLAN Modules


Benefit: Supportsmore network elements on one router

Challenge: Ethernet Scaling andChallenge: Ethernet Scaling andManagementManagement

Solution: Catalyst

2924M XL DC

Catalyst 1924-DCEthernet Switches

NE

NENENE

NE NENE

NENE

NE

NENENE

NE NENE

NENE

NE

NENENE

NE NENE

NENE

Cluster ManagerSoftware

172.20.128.200

172.20.128.203172.20.128.201172.20.128.202

ISL

Solution: Integrated

Management

.Switch Clustering

Technology

Benefit: Single IPaddress

Cisco 3662-DC-CO

Benefit: cluster up to 16 switches

Catalyst 2924M XL DC

ISL ISLISL



Cisco 3662-CO-DCCisco 3662-CO-DC

Designed for telcotransmission environment

5 RU chassis 6 Network Module

slots (NMs) Ports: Up to 192 async,

up to 48 sync 2 10/100-Mbps Fast

Ethernet ports Redundant DC

power supplies NEBS level 3 compliant CLEI coded 12 inches deep, including

cable drape


Cisco 3662-DC-CO ComponentsCisco 3662-DC-CO Components

Hot swappable modules, dual DC power All major components are field replaceable

and very easy to service



Cisco 3662-DC-COCisco 3662-DC-CO

Designed for the telco transmission environment 5 rack-unit-high chassis 6 NMs Performance: 100 Kpps fast switch, 12K

process switch 2 Fast Ethernet 10/100 Mbps on motherboard Redundant DC power supplies 12 in./300 mm deep PCMCIA Flash card slot to store software images 2 x AIM slots for compression and encryption

hardware assist CLEI coded


Versatility, Integration, PerformanceVersatility, Integration, Performance

Hundreds of Combinations!Hundreds of

Combinations!

Cisco 3600 Family InterfacesCisco 3600 Family Interfaces

Over 60 different network modules Multiple LAN/WAN combinations

Ethernet, Token Ring, Fast Ethernet,Serial, ISDN, CSU/DSU

Broad range of network servicesDialISDN, async, modemsMultiserviceVoice and fax over IPpacket gateways(BRI/PRI digital interfaces)Emerging technologiesATM, xDSL in the future

Simplified solutionsIntegrated T1 and 56K CSU/DSUIntegrated compressionWICs shared with Cisco 1600 and 2600 seriesNMs shared with Cisco 2600



CiscoIOS

Software

CiscoIOS

Software

Cisco IOS Telco ImageCisco IOS Telco Image

IP/OSI routing protocol services

BGP, IS-IS, ISO-IGRP, EIGRP

Multiprotocol WAN router

X.25 services

Switching

X.28 Async PAD

X.25/IP protocol translation

ISDN services

Frame Relay services

ATM connectivity

PPP features


CiscoIOS

Software

CiscoIOS

Software

New X.25 engine

PAD features

Protocol translation

CLNS routingISO 8473

Internal organization of the networklayerISO 8348

ES-IsISO 9542

IS-ISISO 10589

Integrated IS-ISRFC 1195

Interdomain routing via Cisco ISO-IGRP

TARPGR-253




Network Scaling (SONET/SDH) IS-IS Multi-Area Manual Area Addresses

Performance (SONET/SDH) TARP Storm Avoidance TARP Split Horizon Protection

Migration (Async/X.25) X.25 over TCP/IP BX.25 X.25 Hunt Group DNS Routing for X.25

CiscoIOS

Software

CiscoIOS

Software



IP over CLNS TunnelingIP over CLNS Tunneling

12.1(5)T12.1(5)T

Cisco 3662-DC-COCisco 3662-DC-CO Cisco 26xx-DCCisco 26xx-DC

Catalyst 1924-DCCatalyst 1924-DC Catalyst 2924M-DCCatalyst 2924M-DC

Cisco IOS Telco Feature SetCisco IOS Telco Feature Set IP Routing; BGP, IS-IS, OSIIP Routing; BGP, IS-IS, OSI

X.25 Support/X.28 PADX.25 Support/X.28 PAD

X.25-IP PTX.25-IP PT

DNS Routing for X.25DNS Routing for X.25

IS-IS Multi-Area SupportIS-IS Multi-Area Support

TARP Support, Storm Avoidance,TARP Support, Storm Avoidance,Split HorizonSplit Horizon

BX.25 TransportBX.25 Transport

ISL support for CLNSISL support for CLNS

AsyncAsync Call Queuing Call Queuing

Cisco DCN Solution RoadmapCisco DCN Solution Roadmap



New X.25 engine Modular PQ/CQ SVCPVC convert Route call source addressing AO/DI (11.3.3T) X.25 MIB PAD over XOT X.31 (X.25/ISDN) CMNS

X.25 over LLC2Route X.121 or NSAPService PAD supportX.25 config over Ethernet

Opt. flow control negotiation Address insertion Hunt groups Annex G DNS Routing

PAD features Full X.28 emulation

Full X.29Full X.3MnemonicsX.29 reselectStandard call req.

Bidirectional PAD Async subaddress Configurable PID NUI support

Protocoltranslation

Facilities/destPVC supportVirtualTemplatesIdle timerPT supportsLayer 2F

EnhancementsEnhancements11.2(4)11.2(4)12.0(5)T12.0(5)T

X.25 Product Summary X.25 Product Summary


SimultaneousTelnet Users

DMS100

3 AsyncInterfaces

CallQueuing on

Cisco 3662-DC-CO

Telnet to vtyAsync Conversion

WAN

User in queue status

Migration FeatureMigration FeatureAsync Call QueuingAsync Call Queuing

Async port access contention

CO platform queues telnet calls

Authenticate each connection via Radius or AAA

Enables operations more efficient port access



IP Cloud

OSSNetworkElment

DNSX25 call

What is the IP address forX121 address 317844 ?

X121 address 317844equals 10.1.1.1

10.1.1.1Answer 10.1.1.1

DNS Routing for X25DNS Routing for X25

DNS feature works with XOT

x121 address loaded into the A record on the DNS

Feature supports multiple DNS Servers

Single Static route supports all Network destinationsx25 route * xot dns 10.1.1.5

Move a Host or Network element just change DNS entry

Mnemonics resolved via DNS, not locally


WAN

X.25 Host

X.25

X.25

PAD 31104085272478

31104085272411

31104085272425

31104085272499

31104085272400Call 31104085272400

Migration FeatureMigration FeatureX.25 Hunt GroupX.25 Hunt Group

X.25 serial line rotary on single router

ITU-T standard

VC count, round robin, master rotary



BX25 SupportBX25 Support

Class 5 Switches use for Billing Data collection,Monitoring, and Provisioning

Two types of Implementations

Public X25 Networks Implementation with dialup

Frame: LAPB Frame for Password

turnoff I-Frame: XOT will transport

Leased Line: CCITT compliant layers 1-3

XOT (RFC 1613) or STUN will transport

Sample configuration in Reference Slides


NE

NE

NE

NE

NE

NE

NE

NE

Cisco 3662-DC-CO

NE

NE

NE

NE

Area A Area B Area C Area D

Scaling FeatureScaling FeatureIS-IS Multi-AreaIS-IS Multi-Area

Currently ISO 10589 onlyallows for 1 Area per router

Cisco has enhanced IS-IS toallow multiple OSI Areas perrouter

Initially up to 12level 1 instancesper Cisco 3662-DC-CO(3 per Cisco 26xx-DC)

Single level 2 instance

Allows ISIS to scale

Saves router HW cost

Solves re-addressingissues



NE

NE

NE

NE

NE NE

NE

X.25/IP

30 Cisco 2522s 40 Cisco 2514s

OSI/IP

T1

OSI/IP Integrated IS-IS

L1/L2

L1

10BTCatalyst1924-DC

Cisco 2514s

NE

NE

NE

NE NE

NE

NE

NE

NE

NE NE

OSI Area 2

OSI Area 12

Catalyst 1924-DC

OSI Area 1

Central Office Boundary

Digital CrossDigital CrossConnect SystemConnect System

(DCS e.g., Titan 5500)(DCS e.g., Titan 5500)

Optical LoopOptical LoopCarrier SystemsCarrier Systems

(e.g., Litespan 2000)(e.g., Litespan 2000)

Intelligent DS1Intelligent DS1Delivery SystemsDelivery Systems(e.g., Soneplex)(e.g., Soneplex)

240 Async/Sync Ports

...

40 OSI areas

Uses 30 Cisco 2522s and 40 Cisco 2514s.

Large Central Office Using CiscoLarge Central Office Using Cisco2500 Series Routers2500 Series Routers


NE

NE

NE

NE

NE NE

X.25/IP144 Async/Sync

3 3662-DC-CO 4 3662-DC-CO

40 OSI areas - EthernetX.25/IP - 96 Async/Sync

T1OSI/IPIS-IS and OSPF

L1/L2

NE

NE

NE

NE

NE NE

NE

NE

NE

NE

NE NE

OSI Area 1

OSI Area 2

. . .OSI Area 12


Replaces 30 Cisco 2522s and 40 Cisco 2514s.

NE(SONET ADM)Digital CrossDigital Cross

Connect SystemConnect System(DCS e.g., Titan 5500)(DCS e.g., Titan 5500)




NE

10BTCatalyst1924-DC

10BTCatalyst1924-DC

Cost and Complexity Reduction UsingCost and Complexity Reduction UsingCisco 3662-DC-CO in Large Central OfficeCisco 3662-DC-CO in Large Central Office



NE

NE

NE

NE

To Core

NE

T1

IP

X.25/IP96 A/S

Cisco 3662-DC-COOSI L1/L2

NE

NE

NE

NE

NE

NE

NE


Digital CrossDigital CrossConnect SystemConnect System

(DCS e.g., Titan 5500)(DCS e.g., Titan 5500)




(SONET ADM) NE

NE

NE

NE

NE

NEOSI/IP SONET/SDH Interface

ISL IP/CLNSFast Ethernet

VLANNE

NE

NE

NE

OSI Area 2

OSI Area 12

OSI Area 1

...

10BaseTCat1924

or Cat2924

Benefits: Network Module ports saved for async/sync Future proof for OSI to IP transition

Solution: Cisco 3662-DC-CO andSolution: Cisco 3662-DC-CO andISL for CLNSISL for CLNS


OSS

IP GNE

NE

NE

GNE

TCP/IP

(TCP/IP) over CLNS

async

ContactClosure

DCC DCC

Modem Bank

Tunneling IP over CLNSTunneling IP over CLNS

A solution to communicate with remote huts and vaults

Eliminates purchasing a separate circuit from the ILEC

Provides easy access to remote locations

Example is doing reverse telnet to an async device

Note: Gateway Network Element and NE are CLNS routers



SummarySummary

OSSs & NEs are migrating to Ethernet

DCNs are evolving to Intranets and thepace will quicken with the growth of theInternet

Cisco building a solution: hardware &software

Solution tied to the InternetTechnology


Reference MaterialReference Material

Implementation Examples

Network Module Information

Catalyst 2924 & 1924 Information

Software Features



Example: Tunneling X25Example: Tunneling X25

IP Cloud

OSS

BX25 BX25

Class 5

Billing OSS polling a Class 5 Switch

x25 routing!interface Ethernet0/0 description AMA Billing

ip address 141.149.109.48 255.255.255.192 no ip directed-broadcast!interface Serial1/0 description AMA Billing DSC 00 no ip address no ip directed-broadcast

encapsulation x25 no ip mroute-cache x25 ltc 5 x25 win 7 x25 wout 7 x25 ips 512 x25 ops 512

no x25 linkrestart x25 pvc 1 xot 141.159.229.247 interface

Serial 3/0 pvc 1 window size 3 3clockrate 56000

x25 routing

!interface Ethernet2/1 description ip address 141.159.229.247 255.255.255.0!interface Serial3/0 description AMA Billing FE56

no ip address encapsulation x25 dce no ip mroute-cache no logging event subif-link-status x25 ltc 5 x25 win 7 x25 wout 7

x25 ips 512 x25 ops 512 no x25 linkrestart x25 pvc 1 tunnel 141.149.109.48 interface

Serial 1/0 pvc 1 windowsize 3 3clockrate 56000

TCP(BX25)/IP

Serial 1/0Serial 3/0


Example: TCP to X25 ProtocolExample: TCP to X25 ProtocolTranslationTranslation

OSS

Sonoplex

X25 SVC

X25TCP/IP

X25 ProtocolTranslation

Modem BankIP

TCP Session

x29 profile soneplexcraft 1:0 2:1 3:2 4:2x25 routing!interface Loopback1 ip address 144.169.139.193 255.255.255.252 no ip directed-broadcast!interface Serial2/2 description -directly connected to soneplex 214a no ip address no ip directed-broadcast encapsulation x25 dce no ip mroute-cache x25 address 3277732501 x25 ltc 2 x25 htc 3 x25 idle 2 no ignore-hw local-loopback clockrate 9600!x25 route ^ 3277732501 interface Serial2/2!translate tcp 144.169.139.194 port 2501 x25

3277732501 profile soneplexcraft

IP 144.169.139.193Port 2501



T1/FT1 CSU/DSU WIC

Cisco 3600 Family IntegratedCisco 3600 Family IntegratedCSU/DSU WICCSU/DSU WIC

Provides integratedsolution for networkmanagers and serviceproviders

Shared with Cisco1600 and 2600 series


Cisco 3600 InterfacesCisco 3600 InterfacesLAN ConnectivityLAN Connectivity

Fast Ethernet 10/100 TX or FX 1- or 4-port 10BaseT Mixed-media network modules

1/2 Ethernet, 2 WAN interfacecard slots1 Ethernet, 1 Token Ring, 2 WANinterface card slots

Modular WAN interface cards1 T1/E1 serial1 ISDN BRI (optional NT-1)56-kbps serial WIC withintegrated CSUT1 serial WIC with integrated CSUShared with Cisco 1600 and 2600



Cisco 3600 InterfacesCisco 3600 InterfacesSerial ConnectivitySerial Connectivity

4- or 8-port asynchronous/synchronous serial

Cisco 5-in-1transition cable

16- or 32-port async

Single serial T1 WIC


Cisco 3600 InterfacesCisco 3600 InterfacesISDN BRIISDN BRI

4-or 8-port ISDN BRI

4-or 8-port ISDN BRIwith NT-1

BRI WIC (U or ST)



Cisco 3600 InterfacesCisco 3600 InterfacesISDN PRIISDN PRI

1- or 2-port CT1/ISDN PRI

1- or 2-port CT1/ISDNPRI with CSU

1- or 2-port CE1/ISDNPRI balanced

1- or 2-port CE1/ISDNPRI unbalanced


3.2 Gbps switching fabric 3.0 million pps forwarding rate and

1.6 Gbps forwarding bandwidth 4-MB shared memory architecture Fast EtherChannel and Gigabit

EtherChannel uplink support CGMP Fast Leave multicast traffic reduction Broadcast storm control Support ISL/802.1Q frame tagging with

VTP/VMPS end-to-end VLAN support

2924M Performance2924M Performance



Gigabit Ethernet module (single port)1000BaseX with GBIC-based media slot

ISL/802.1Q support

Eight queues for priority-based forwarding

ATM modules (single port OC-3)UTP

Multimode fiber

Single-mode fiber, medium reach (10Km)

Single-mode fiber, long reach (40Km)

Catalyst 2900 XL ModulesCatalyst 2900 XL Modules


Multi-floor Central Office

NE

NE

NE

Cisco 3662-DC-CO

Cisco 3662-DC-CO




Solution:Fiber Up-links

Fiber

Fiber SeparateGroundPlane

on each Floor

Benefit: Ground plane isolationwith one contiguous DCN LAN

Challenge: Central OfficeChallenge: Central OfficeGround Plane IsolationGround Plane Isolation



Cisco Catalyst 1924-DCCisco Catalyst 1924-DCfor Switched Ethernet Expansionfor Switched Ethernet Expansion

24 switched 10BaseTports + one switched AUI

1024 MAC addresses

Two, fixed100BaseTX ports

9 deep

48v DC, dual inputs

CLEI coded

NEBSlevel 3 compliant


Router_B

L1L1

Area A+B+C

Area BArea A

Router_ABC

Router_A

L1L1

L1L1

L2L2

Scaling FeatureScaling FeatureManual Area AddressesManual Area Addresses

ISO 10589recommends thatno more than 3MAAs per area

Increased thenumber from 3to 256 per router

Allows the networkto be implementedwithout re-addressingNEs or rings



Migration FeatureMigration FeatureTARPTARP

SIF standard for resolving layer 7address to a layer 3 address

Resolves the TL1 identifier toactive network layer address

(i.e., TID to NSAP, TID to IP, etc. )


NE

NE

L1/L2NE

Network Operations Center

OSI Area

TID Not CachedTID Not Cached

NE

L1/L2

1

2a

2b

3A

A1

B

TARPCache

Performance FeaturePerformance FeatureTARP Storm AvoidanceTARP Storm Avoidance

No need to flood all TARP packets

Forward TARP packets to necessary routers only

Allows for TARP caches to be located anywherewithin the network

Allows users to decide which routers shouldhold the TARP cache



COAccess

1

2

TARP RequestsTARP Requests

TARP RequestTARP Request3

Distribution RoutersDistribution Routers

TARP PacketsTARP PacketsNot ForwardedNot Forwarded

NENE

NENENENE

NENE

NENE

NENENENE

NENE

NENE

NENENENE

NENE

Performance FeaturePerformance FeatureTARP Split Horizon ProtectionTARP Split Horizon Protection

TARP packetsfollow TARPadjacencies

Dont forwardrequests outan incominginterface

RemovesRemovesunnecessaryunnecessarypackets frompackets fromnetworknetwork


FrameRelay

X.25 Host

FR

IP IP

FR

IP

X.3PAD

X.25

NetworkElements

Craft deviceVT100

Note: Annex G also support provided

BX.25 Host

BX.25

Migration Feature X.25 overMigration Feature X.25 overTCP/IP - RFC 1613 (XOT)TCP/IP - RFC 1613 (XOT)



ApplicationApplication LegacyLegacy

Load Calling DatabasesLoad Calling Databases

Monitor SCP and STPsMonitor SCP and STPs

Collection of Billing DataCollection of Billing Data

IPIP

CECE

NSNS

A-Link MonitoringA-Link Monitoring

A-Link Protocol DecodingA-Link Protocol Decoding

New Calling FeaturesNew Calling Features

X.25/IPX.25/IP

NE, NSNE, NS

IPIP

X.25X.25

X.25X.25

IPIP

FutureFuture

IPIP

IPIP

IPIP

IPIP

IPIP

NENE

NSNS

NSNS

NSNS

NSNew ServiceNENetwork Elimination

SS7 ApplicationsSS7 Applications


Class 5 Switch ApplicationsClass 5 Switch Applications

ApplicationApplication LegacyLegacy

Billing: Sebx/BilldatsBilling: Sebx/Billdats

Monitor and ProvisioningMonitor and Provisioning

BX.25BX.25

CECE

NENE

Async/X.25Async/X.25

NewNew

IPIP

IPIP NENE

NSNew ServiceNENetwork Elimination



Network ElementNetwork Element LegacyLegacy

SONET/SDH ADMSONET/SDH ADM

ADSL EquipmentADSL Equipment

X.25X.25

NewNew

OSI/IPOSI/IP

Digital Loop CarrierDigital Loop Carrier

HDSL ShelvesHDSL Shelves

X.25X.25

Async/ContactsAsync/Contacts

OSI/IPOSI/IP

IPIP

IPIP

Power EquipmentPower Equipment IPIP

X.25X.25

CEV/Hut/Collocate ConnectivityCEV/Hut/Collocate Connectivity


Questions?Questions?

58

304

1055_05F9_c1 1999, Cisco Systems, Inc.



Ciscos CLECCiscos CLEC Networkers NetworkersPower SessionPower Session

DCN PresentationDCN Presentation


cisco dcn solution for network operations

Documents

cisco systems

x25 switches

x25 rfc

tcpip complete x25 packet

ethernet phase

billing oss

remote provisioning

ethernetinterfaces osss