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Managing MPLS Networks
Oleg Kupershmidt and Joel Kaufman
Terms of This Presentation
This presentation was based on current information and resource allocations as of October
2009 and is subject to change or withdrawal by CA at any time without notice.
Notwithstanding anything in this presentation to the contrary, this presentation shall not serve
to (i) affect the rights and/or obligations of CA or its licensees under any existing or future
written license agreement or services agreement relating to any CA software product; or (ii)
amend any product documentation or specifications for any CA software product. The
development, release and timing of any features or functionality described in this presentation
remain at CA’s sole discretion. Notwithstanding anything in this presentation to the contrary,
upon the general availability of any future CA product release referenced in this presentation,
CA will make such release available (i) for sale to new licensees of such product; and (ii) to
existing licensees of such product on a when and if-available basis as part of CA maintenance
and support, and in the form of a regularly scheduled major product release. Such releases
may be made available to current licensees of such product who are current subscribers to CA
maintenance and support on a when and if-available basis. In the event of a conflict between
the terms of this paragraph and any other information contained in this presentation, the
terms of this paragraph shall govern.
2 October 12, 2009 Managing MPLS Networks Copyright © 2009 CA
For Informational Purposes Only
Certain information in this presentation may outline CA’s general product direction. All
information in this presentation is for your informational purposes only and may not be
incorporated into any contract. CA assumes no responsibility for the accuracy or completeness
of the information. To the extent permitted by applicable law, CA provides this document “as
is” without warranty of any kind, including without limitation, any implied warranties or
merchantability, fitness for a particular purpose, or non-infringement. In no event will CA be
liable for any loss or damage, direct or indirect, from the use of this document, including,
without limitation, lost profits, lost investment, business interruption, goodwill, or lost data,
even if CA is expressly advised of the possibility of such damages.
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Agenda
> MPLS Standards & Technologies
> CA Spectrum & CA eHealth for MPLS Management
> MPLS Services: L3 & L2 VPNs
In-depth look at VPLS
> Metro Ethernet
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What is MPLS ?
> An acronym for Multi Protocol Label Switching
> Originally
Another way to forward packets
– Originally faster
Derived from tag switching in the late 90s
> Now
Large set of IETF standards
Defining a converged backbone
Supporting a large variety of services
– Voice, video, data & QoS
Some providers phasing out new Frame Relay deployments
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MPLS Operation – Some Terminology
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
PE PE
CE – Customer Edge
PE – Provider Edge
P – Provider (Core)
CE CE
P
P P
P
P
MPLS Operation – Label Switched Path
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
P P
PE PECE CE
P P
P
MPLS Operation – Router Outage
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
P P
PE PECE CE
P P
P
X
MPLS Operation – LSP Rerouted
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
P
PE PECE CE
P P
P
P
MPLS – It’s about the Services
> Layer 3 VPNs – RFC 2547
Offers “IP Service” to enterprise customers
Replacement for Frame Relay & ATM
> Layer 2 VPNs
Pseudowire
Virtual Private LAN Service (VPLS)
10 October 12, 2009 Managing MPLS Networks Copyright © 2009 CA
CA Spectrum Infrastructure Manager & CA eHealth Performance ManagerMPLS Management
MPLS Management via Service Manager
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MPLS Service Management
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MPLS Service Management
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MPLS Service Management
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How do you use MPLS?
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
PE PECE CE
P
P P
P
P
MPLS Provider - Core
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
PE PECE CE
P
P P
P
P
MPLS Provider - Edge
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
PE PECE CE
P
P P
P
P
MPLS Enterprise User – Customer Edge
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
PE PECE CE
Managed Service Provider
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
PE PECE CE
New in CA Spectrum r9.2
> Integrated Core Spectrum and Network Services Auto
Discovery
Selective IP Range
Selective Technology: MPLS, L3 VPNs, VPLS
> MPLS L3 VPN Membership (display and grouping) based
on Route Distinguisher (RD)
> VPN Manager VRF Discovery Filter: Include / Exclude
> VPLS Manager (for Juniper devices)
> BGP Internal Peer Session Monitoring
> Support for Overlapping VPNs (GA is targeted for r9.2.1)
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CA Spectrum Features Under ConsiderationPost r9.2.0
> MPLS Transport Manager
Service Assurance: LSP Ping & LSP Trace
Support for MPLS Fast ReRoute
Group Forward & Return LSPs (into bidirectional pairs)
Management of non-Traffic Engineered Environments
> VPN Manager
Support for Hub & Spoke VPN Topology
QoS Aware Service Assurance Tests
> VPLS Manager
Support for Cisco devices
Service Assurance Tests
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Managing MPLS with CA eHealth
> Reporting on LSP segments - many available
At-a-Glance
Trend
Top N
> Context launching from Spectrum into CA eHealth r10.0
> MPLS segment discovery enabled by:
EH_DISCOVER_CISCO_MPLS
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LSP Segment Report
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MPLS Services
L2 & L3 VPNs
L3 VPN Service Discovery
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Provider
MPLS Core
PEPE
VPN-Green
VPN-Red
VPN-Green
VPN-Red
VPN-Blue
P
P P
P
P
CA Spectrum L3 VPN Service Monitoring
> VPN status
PE Router status
Interface status
– Physical & logical
> Threshold alarms based
on % of sites down
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CA eHealth PM Reports on VPN Site
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CA eHealth PM Top N on VPN
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VPN Service – Infrastructure Health
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PE
or or
VPN Site
VPN Service
Infrastructure PEPE
Disabled VPN
Via Config Change
Port Connecting
VPN Customer
VPN Service – Infrastructure Health
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PEPE
or or
VPN Site
VPN Service
Infrastructure
Disabled VPN
Via Config Change
Port Connecting
VPN Customer
1 of 3 Sites Down
PEPE
Service Assurance Testing
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MPLSProvidersCore Network
Boston Paris
London
VPN-Red
VPN-Red
VPN-Green
VPN-Blue
VPN-GreenVRF Ping
Site
Site
Site
Site
Site
Site SiteVPN-Green VPN-Blue
PE PE
PE
Auto-Provision VRF Ping Tests
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> CA Spectrum automatically configures site-to-site VRF Ping tests
Site
Site
Site
Site
Site
Site
Site
Site
Troubleshooting: VRF Traceroute
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MPLSProviderCore Network
BostonParis
London
VPN-Green
VPN-Red
VPN-Blue
VPN-Green
VPN-Red
CEPE
CE
CE
PE
CE
CE
PE
Troubleshooting: VRF Traceroute
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MPLSProvidersCore Network
BostonParis
London
VPN-Green
VPN-Red
VPN-Blue
VPN-Green
VPN-Red
Click to view path
CE
CE
CE
CE
CE
PE
PEPE
P
P
P
P
P
Launch VRF Traceroute
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PEPE
PE
PE
PE PE
PEPE
Path History
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Benefits of Using VRF Traceroute
> Instant access to troubleshooting tools.
No need to telnet to device (passwords)
> Poll LSP path for all sites to detect change
Alert on excessive path change (one time event)
Alert on excessive path change over time (event rule)
> Path history for troubleshooting
What is the current path?
Is this typical?
What was the previous path?
Does this path change often?
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VPLS Management
October 12, 2009 Managing MPLS Networks Copyright © 2009 CA
VPLS: How it works
> Provider assigns a customer one (or more) VFI(s)
> Provider assigns PE interfaces to a VFI
> Provider’s infrastructure appear like a big virtual switch
Forwards Ethernet frames out proper port
Floods unknown frames out all virtual switch ports
Loop prevention
MAC addresses learning
MAC address aging
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Advantages of VPLS over L3 VPNs
> Simpler connection to provider
Ethernet available
> Potentially lower cost CE device
> Enterprise retains control of routing
> Logical migration step from Frame Relay
> Advantages benefit enterprise
> Which one should you use?
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Advantages of VPLS over P2P VPNs
> For the enterprise
Naturally “full mesh”
Manage only single link to provider
Not N^2 separate tunnels
> For the provider
Ease of setup – define VFI / associate interfaces
Single connection to enterprise site
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National L2 vs. L3 Availability in US
> L2
ATT (most markets)
Level 3 / Broadwing
Masergy
Time Warner Telecom
Verizon
Yipes
> L3
ATT
Level 3
Qwest
Time Warner
Sprint
XO
one Communications
ACC Business
Verizon
Many, many more
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Denise Pappalardo - Network World 4/26/07
Comparing L3 & L2 Services – L3
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
PE PE
CE CE
Comparing L3 & L2 Services – L2
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ProviderCustomer
Site 1Edge Edge Customer
Site 2
MPLS Core
PE PE
CE CE
In Development: CA Spectrum VPLS Manager
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Managing L2 VPNs with CA eHealth PM
> Pseudowire emulation reports available with:
CA eHealth 6.0 SP4/D4
CA eHealth 5.7 SP9/D9
> Context launch from CA Spectrum r10.0
> At-a-Glance reports show:
Packets / sec
Bytes / sec
Availability
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Metro Ethernet
October 12, 2009 Managing MPLS Networks Copyright © 2009 CA
Metro Ethernet Basics
> A Metropolitan Area Network Service provided to
Customers
Lower cost yet high speed
> A Service Provider Solution
Collection of Layer 2 and/or 3 switches/Routers connected
through optical fiber
Topology could be ring, hub & spoke, or full/partial mesh
Hierarchy is Core, Distribution (Aggregation) and Access
The core in most cases is IP/MPLS but could also be newer
forms of Ethernet transport with 10Gbps or 100Gbps
speeds.
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What is Driving MetroEthernet?
> High Bandwidth Services – MultiMedia, Telepresence,
IPTV, VoD
> Need to increase Capacity & reduce Costs
> Converged Provider Core to build out services
> MetroE Promises
Simpler low cost connection (Ethernet UNI)
Lower cost CE Device
Scalable & Incremental Bandwidth
Enterprise retains control of routing
Ultimately lower costs
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MEF and Vendor Defined Services
> E-Line Service (Point to Point)
Virtual Leased Line (VLL)
Ethernet Private Wire Service (EPWS) or PseudoWire (PW)
Ethernet Relay Service (ERS)
> E-LAN Service (Multipoint to Multipoint)
Virtual Private LAN Service (VPLS)
Transparent LAN Services (TLS)
Ethernet Multipoint Service (EMS) [Cisco]
Ethernet Relay Multipoint Service (ERMS) [Cisco]
> E-Tree Service (Point to Multipoint)
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Advantages of MPLS Metro Ethernet
> Scalability
Pure Ethernet MANs have limit of 4096 VLANs
> Resiliency
Pure Ethernet MANs may take 1 to 30 seconds to converge
MPLS can converge in 50 msecs
> Multi Protocol Convergence
With the use of Psuedowire MPLS can backhaul not only
IP/Ethernet traffic, but virtually any customer traffic like
ATM aggregation for UMTS or TDM aggregation for GSM
> End to End OAM
Wide set of troubleshooting tools like MAC ping, MAC
traceroute, LSP Ping, etc.
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Ethernet OAM Protocols
These standards are being studied for general eHealth and Spectrum support. Some are already supported in eHealth for the ADVA 5000 device
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Ethernet OAM Protocol Application
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How Does CA Help Manage Metro Ethernet?
> Broadest Range of Device and Vendor Support
Cisco, Juniper, Alcatel-Lucent, Adtran, ADVA, Huawai, Nortel, Extreme, Foundry
> Technology Support
MPLS Interfaces, Segments, Tunnels, VLAN, VPLS, VPN, QOS, Pseudowire, MPLS –
TE, Multicast, Ethernet, LAN/WAN, Sonet/SDH, DWDM
> Device Change & Configuration Management
> Layer 2 and 3 Topology Maps (Juniper L2 in Fall)
> Proactive Performance Management
> Correlation and Root Cause Analysis
> Automated Grouping and Testing
Groups, Group Lists, Global Collections
Cisco IP-SLA, Juniper RPM
– New Metro Ethernet IP-SLA tests being added to eHealth/Spectrum
> Real Time Service Management Dashboards and Reports
> Traffic monitoring (major changes and capabilities planned for the near future)
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Summary
> MPLS Solutions offer a “converged backbone" allowing
providers to transport voice, video and data services on a
single infrastructure offering QoS
Typically deployed in provider networks
> Many enterprises rely upon MPLS-based VPN services
Layer 3 VPNs are widely deployed, with Layer 2 rapidly
increasing in popularity
> CA offers solutions for MPLS management for both
providers and enterprises
New Metro Ethernet management capabilities are under
development
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Q&A
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Thank You!