mpls evpn

mpls evpn BGP multiprotocol signaling i.e., MP-BGP, AFI = 25, SAFI = 70.

Compare with vpls, evpn to solve some of the problems encountered VPLS over a decade of real-world deployment.
Comparison of two techniques:
1. signaling protocol
vpls: LDP, bgp
EVPN: bgp
only bgp support automatic discovery
2.mac address learning
vpls mac address learning dependent data plane, it is easy to generate a forwarding information outdated .
Such as ac fault, you need to clear the relevant mac mac address entries from the table, including remote pe. evpn, the mac address to learn the local AC via the data plane, but to study the control plane between the mac address pe. I.e., to exchange MAC address routing through BGP. Thus greatly reducing the position unicast frames pan magnanimity, mac address refresh BGP also supports the natural -mac address information once there is a change, just retracement of the BGP routing.
3.CE multihomed
evpn supports two multihomed i.e. single live (n standby master 1) and whole live (load sharing may be made).
vpls only supports multi-host single live, also dependent bgp. (BGP need to enable auto-discovery feature)
closely 4.2,3 layer relationship
vpls in irb or bvi l3 is the key to the network. However, 2,3 layer information completely separated.
evpn are born supports several let l2, l3 close connection method. This enables the data center to drift between different servers vm be easily achieved.

mpls evpn advertised routes:

1, inclusive multicast routing information included is: RD, VLAN, ROUTER_ID, RT, nexthop, PMSI label , copy IP address entry

      Mainly automatic discovery, build tunnels, broadcast, unknown unicast traffic to provide a list sent.

2, MAC address advertised route

      

 

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Origin www.cnblogs.com/keenxu/p/11620051.html