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MP BGP

posted 11 Apr 2016, 14:10 by DR Labs   [ updated 11 Apr 2016, 14:36 ]
***WORK IN PROGRESS***

Multiprotocol Extensions for BGP (MBGP), sometimes referred to as Multiprotocol BGP or Multicast BGP and defined in IETF RFC 4760, is an extension to Border Gateway Protocol (BGP) that allows different types of addresses (known as address families) to be distributed in parallel. Whereas standard BGP supports only IPv4 unicast addresses, Multiprotocol BGP supports IPv4 and IPv6 addresses and it supports unicast and multicast variants of each. Multiprotocol BGP allows information about the topology of IP multicast-capable routers to be exchanged separately from the topology of normal IPv4 unicast routers. 

Multiprotocol BGP is also widely deployed in case of MPLS L3 VPN



Enable by configuring - Address family vpnv4

vpnv4 routes (VPN label)

Extended Communities 

neighbour 1.1.1.1 send-communities extended 

VRF name

Route Distinguisher 1.1.1.1:2 (keeps networks separate in MPBGP) local significant 

VRF (VRF PICTURE)
Route Targets
Export Target 10:10 ( out of the VRF into MPBGP )
Import Target 9:9 (out MPBGP into the VRF ) (how the routes should be shared with) 


router bgp 65020


LSP - Label Switching Path (each router applies its own label based upon its own routing table) 

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