Ã¢Â€ÂœASR 9K + NX7KÃ¢Â€Â DCI Solution Overview MC-LAG + vPC - Cisco ...

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L2VPN Evolution with EVPN: MAC RoutingVPLSEVPNPacket isolationVLAN/BD/VSIVLAN/BD/EVIPacket forwardingLoop preventionBased on MAC addressData plane auto learningVPLS multi-homingPer-VLAN load balancingSingle PathControl plane MAClearning/distribution usingrouting protocol just like L3A/A mc-lagPer-flow load balancingECMPsThe combined advantages of both L2 and L3 Forwarding• Per-flow load balancing, multiple paths• Reduced L2 flooding (no unknown unicast flooding, ARP proxy)• Efficient multicast/broadcast distribution (LSM)• No control plane overhead, PW is eliminated . No control planesignaling per PW
EVPN – The PrincipleActive-active <strong>MC</strong>-<strong>LAG</strong>, perflowload balancingFrom PE1iBGP L3-NLRI:• next-hop: PE1• iBGP L2-NLRI• next-hop: PE1• C-MAC1PE1PE2Control plane:BGP for MAC distributionData plane:MPLS forwarding like L3PE3PE4PEC-MAC3From PE3iBGP L3-NLRI:• next-hop: PE3• iBGP L2-NLRI• next-hop: PE3• • Treat MAC as routable addresses and distribute them in BGP• Receiving PE injects these MAC addresses into forwarding table along with itsassociated adjacency like IP prefix• When multiple PE nodes advertise the same MAC, then multiple adjacency iscreated for that MAC address in the forwarding table: multi-paths• When forwarding traffic for a given unicast MAC DA, a hashing algorithm based onL2/L3/L4 hdr is used to pick one of the adjacencies for forwarding: per-flow loadbalancing
Page 1: Dennis Cai and Sai NatarajanMay 201
Page 4 and 5: Carrier Cloud Business & Technical
Page 6 and 7: Agenda• Introduction: Cloud Archi
Page 8 and 9: ASR 9000 Ethernet Line Card Overvie
Page 10 and 11: Flexible EVC Architecture:Any Port
Page 12 and 13: Scalable and Flexible L3 Foundation
Page 15 and 16: Nexus + ASR 9000: Integrated End to
Page 17 and 18: ASR 9000 DCI Solution - the Value P
Page 19 and 20: ASR 9000 DCI Solution - nV ClusterD
Page 21: ASR9K DCI Solution Enhancement - PB
Page 25 and 26: Deploying Large Scale DCI with PBB-
Page 27 and 28: Beyond the DCI: the Evolution of th
Page 29 and 30: Traditional Data Center Service Mod
Page 31 and 32: Virtualized Cloud Service Use CaseR
Page 33 and 34: MonetizationOptimizationCisco ONE:
Page 35 and 36: ASR 9000 as Universal Cloud Gateway

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Ã¢Â€ÂœASR 9K + NX7KÃ¢Â€Â DCI Solution Overview MC-LAG + vPC - Cisco ...