How do most providers keep customers seperate on MPLS

[carl_townshend]

Hi All

Can anyone tell me how most ISPs keep customers separate on there networks, do they just use MP-BGP with VRF?

How do all the routes map into the labels to keep them separate?

[mkazam001]

hi carl,

please see link below:

http://packetlife.net/blog/2009/apr/30/intro-vrf-lite/

regards, mk

please rate if helpful :)

[fbabashahi]

Hi ,

There are two type of VRF

1- vrf lite

this type most use in local sites or between service providers and customers behind themwithout need to MPLS but routing protocols

2- mp-bgp 

in this type service providers create vrf that seperates addresses that vrf assigned with RD and RT and use BGP and MPLS to transfer them to the other PE . in the middle of this scenario mpls or P routers are not aware of that

it is very flexible and you can get help for mpbgp in cisco site .

MPLS: Layer 3 VPNs Configuration Guide, Cisco IOS Release 15M&T

Good luck