Communication between VRF on same PE routers

Unanswered Question
Dec 24th, 2009
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Hello,


A---------PE-1--------P----------PE-2
            |
            |
           B


Am connecting to different customers on same PE and they want to communicate with each other,after importing route-target the next-hop for customer-A routes from Customer-B, is the interface associated with customer-A VRF on the PE-1 router,Customer-B is not able to ping the interface of customer-A,Because here they are not receiving a MBGP update the next-hop is the connected interface of another VRF. To make them reacheable what i have do????


Solution:


Pointing static VRF routes to global routing table of PE-2  and in global routing table of PE-1 pointing global static route to networks of CUSt-A with  particular next-hop of associated VRF interface and redistribute the global static routes in dynamic routing protocol then only PE-2 will come to know where the routes are located for customer-A.By doiing this the traffic flow for connected customer is through PE-2.


Any alternate solution guys


Thanks

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Giuseppe Larosa Fri, 12/25/2009 - 00:07
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Hello Lambay2000,


>> Because here they are not receiving a MBGP update the next-hop is the connected interface of another VRF. To make them reacheable what i have do????


you need to redistribute connected in address-family ipv4 vrf VRFA


router bgp xx

address-family ipv4 vrf VRFA

redistribute connected


also you need on each VRF to import the route-target used for export in the other VRF


ip vrf VRFA

rd  100:101

route-target import 100:200

route-target import 100:100

route-target export 100:100


ip vrf VRFB

rd  100:102

route-target import 100:200

route-target import 100:100

route-target export 100:200



Hope to help

Giuseppe

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