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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.


Agenda

> MPLS Standards & Technologies

> CA Spectrum & CA eHealth for MPLS Management

> MPLS Services: L3 & L2 VPNs

In-depth look at VPLS

> Metro Ethernet


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


MPLS Operation – Some Terminology


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


ProviderCustomer


Site 2

MPLS Core

P P

PE PECE CE

P P

P

MPLS Operation – Router Outage


ProviderCustomer


Site 2

MPLS Core

P P

PE PECE CE

P P

P

X

MPLS Operation – LSP Rerouted


ProviderCustomer


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)


CA Spectrum Infrastructure Manager & CA eHealth Performance ManagerMPLS Management

MPLS Management via Service Manager


MPLS Service Management


How do you use MPLS?


ProviderCustomer


Site 2

MPLS Core

PE PECE CE

P

P P

P

P

MPLS Provider - Core


ProviderCustomer


Site 2

MPLS Core

PE PECE CE

P

P P

P

P

MPLS Provider - Edge


ProviderCustomer


Site 2

MPLS Core

PE PECE CE

P

P P

P

P

MPLS Enterprise User – Customer Edge


ProviderCustomer


Site 2

MPLS Core

PE PECE CE

Managed Service Provider


ProviderCustomer


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)


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


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


LSP Segment Report


MPLS Services

L2 & L3 VPNs

L3 VPN Service Discovery


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


CA eHealth PM Reports on VPN Site


CA eHealth PM Top N on VPN


VPN Service – Infrastructure Health


PE

or or

VPN Site

VPN Service

Infrastructure PEPE

Disabled VPN

Via Config Change

Port Connecting

VPN Customer

VPN Service – Infrastructure Health


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


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


> CA Spectrum automatically configures site-to-site VRF Ping tests

Site

Site

Site

Site

Site

Site

Site

Site

Troubleshooting: VRF Traceroute


MPLSProviderCore Network

BostonParis

London

VPN-Green

VPN-Red

VPN-Blue

VPN-Green

VPN-Red

CEPE

CE

CE

PE

CE

CE

PE

Troubleshooting: VRF Traceroute


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


PEPE

PE

PE

PE PE

PEPE

Path History


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?


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


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?


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


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


Denise Pappalardo - Network World 4/26/07

Comparing L3 & L2 Services – L3


ProviderCustomer


Site 2

MPLS Core

PE PE

CE CE

Comparing L3 & L2 Services – L2


ProviderCustomer


Site 2

MPLS Core

PE PE

CE CE

In Development: CA Spectrum VPLS Manager


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


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.


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


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)


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.


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


Ethernet OAM Protocol Application


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)


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


Thank You!

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