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Multi-chassis LAG: What is it ?Standard LAGTraffic distributed via hash algorithm• Maintains packet sequence per “flow”• Based on packet content or SAP/service IDLAG 1 LAG 1What if one system fails…Link Aggregation Control Protocol (LACP)Introduce LAG redundancy to TWO systemsIEEE Std 802.3-2002_part3 (formerly in 802.3ad)Multi-Chassis LAG (MC-LAG)system MAC and prioritysystem MAC and priorityadministrative keyadministrative keyConsistent port capabilities (e.g. speed, duplex)SLIDE 132COPYRIGHT © 2012 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
Multi-chassis LAG: How does it work ?Multi-chassis LAGActivelag 1 lacp-key 1system-id 00:00:00:00:00:01system-priority 100Standard LAGMC-LAGEdgedeviceLAG 1(subgroup)(subgroup)LAG 1Multi-chassis LAGcontrol protocolProviderNetworkLAG1MC-LAGout of syncin LACPDUsStandbylag 1 lacp-key 1system-id 00:00:00:00:00:01system-priority 100LACPMC-LAG on a SAPSLIDE 133COPYRIGHT © 2012 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
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MPLS-based Metro Ethernet NetworksA
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1. IntroductionSLIDE 3COPYRIGHT ©
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2. Introduction to Metro Ethernet S
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Introduction to Metro Ethernet Serv
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2.3 Carrier Ethernet Services defin
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MEF Carrier Ethernet TerminologyThe
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MEF Carrier Ethernet Terminology•
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MEF Carrier Ethernet TerminologyEth
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Basic Carrier Ethernet ServicesE-LI
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Services Using E-Line Service TypeE
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Services Using E-LAN Service TypeEt
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Audience Question 1Name any two of
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Agenda3. Traditional Metro Ethernet
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3.1 Service IdentificationSLIDE 30C
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Traditional Metro Ethernet Networks
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3.2 Forwarding MechanismSLIDE 34COP
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3.3 Resiliency and RedundancySLIDE
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3.4 Recent DevelopmentsSLIDE 44COPY
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Provider Backbone Bridging (PBB)Eth
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802.1ah Provider Backbone Bridge En
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Shortest Path BridgingHow it works:
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Shortest Path Bridging - SPT Exampl
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Audience Question 3What is the size
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Agenda4. Delivering Ethernet over M
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Delivering Ethernet over MPLSMPLS A
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MPLS VirtualisationThe virtualisati
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MPLS ScalabilityMPLS Scalability:
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MPLS Traffic-EngineeringThe IGP-bas
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MPLS Traffic-EngineeringRecovery fr
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MPLS Traffic-EngineeringFailure and
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MPLS Traffic-EngineeringRecovery fr
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MPLS Traffic-EngineeringFailure and
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4.2 The Pseudowire Reference ModelS
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PWE3 Reference ModelGeneric PWE3 Ar
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Pseudowire Protocol LayeringPseudow
Page 82 and 83: Ethernet Virtual Private Wire Servi
Page 84 and 85: PWE3 Reference Model for Ethernet V
Page 86 and 87: Ethernet VPWS Example 1Example 1: E
Page 88 and 89: Ethernet VPWS Example 2Example 2: E
Page 94 and 95: Audience Question 5What protocol is
Page 96 and 97: Ethernet Virtual Private LAN Servic
Page 98 and 99: VPLS BenefitsBenefits for the custo
Page 100 and 101: VPLS Topological ModelTopological M
Page 102 and 103: VPLS PE FunctionsProvider Edge Func
Page 104 and 105: VPLS SignallingVPLS Mechanics:• B
Page 106 and 107: VPLS SignallingA full mesh of pseud
Page 108 and 109: VPLS Pseudowire SignallingEthernet
Page 110 and 111: VPLS Pseudowire SignallingEthernet
Page 112 and 113: Ethernet VPLS Signalling ExamplePE1
Page 114 and 115: VPLS Packet Walkthrough and MAC Lea
Page 116 and 117: 4.5 Scaling VPLSSLIDE 116COPYRIGHT
Page 118 and 119: Hierarchical VPLSHow is a spoke use
Page 120 and 121: Scalability: ReplicationFlat archit
Page 122 and 123: Topological Extensibility: Metro In
Page 124 and 125: 4.6 VPLS TopologiesSLIDE 124COPYRIG
Page 126 and 127: Topologies: HierarchicalPE-1PE-2PE-
Page 128 and 129: Topologies: RingA full mesh would h
Page 130 and 131: Agenda4.7. Resiliency Mechanisms4.7
Page 134 and 135: Multi-chassis LAG: How does it work
Page 136 and 137: Redundancy at the VPLS edge: MC-LAG
Page 138 and 139: 4.7.3 Pseudo-wire Redundancy with M
Page 140 and 141: Combining MC-LAG with Pseudowire Re
Page 142 and 143: Multi-chassis LAG with PW Redundanc
Page 144 and 145: Multi-chassis LAG with Pseudo-Wire
Page 146 and 147: Multi-chassis LAG with PW Redundanc
Page 148 and 149: Multi-segment Pseudo-wire - Motivat
Page 150 and 151: Multi-segment Pseudo-wire - How do
Page 152 and 153: 5. SummarySLIDE 152COPYRIGHT © 201
Page 154 and 155: 6. Questions ???SLIDE 154COPYRIGHT
Page 156: www.alcatel-lucent.comSLIDE 156COPY
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