who carried address family traffic in mpls vpn

[Arup Dutta]

who carried address family traffic in mpls vpn

[Akash Agrawal]

Hi,

Can you please elaborate your query some more. In mpls L3 vpn, all signalling happens through mbgp protocol.

- Exchange of vpnv4 router(ipv4 prefix + RD)

- Exchange of vpn label along with BGP update.

- IGP label to reach remote PE is exchanged through LDP.

Regards,

Akash

[Arup Dutta]

Hi Akash,

when the simple IPV4 traffic convert VPN route who and how carried the route and same also for IPV4 travelling.

[Akash Agrawal]

Finding it difficult to understand your query. Would request you to give some time and elaborate your query.

"when the simple IPV4 traffic convert VPN route who and how carried the route"

-- on PE when bgp updates moves from vrf bgp table to vpnv4 bgp table, RD gets added and it becomes vpnv4 prefix (96bits = 64 bits (RD) + 32bits(ipv4 address)). mpBGP carries the vpnv4 prefix

"also for IPV4 travelling."

-- did not get your second question.

Regards,

Akash