Routing

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Ask questions and share experiences about ACX Series, CTP Series, MX Series, PTX Series, SSR Series, JRR Series, and all things routing, including portfolios and protocols.

  • 1.  export policy influence BGP session L3VPN capabilities

    Posted 05-13-2013 07:50

    Hi to everyone.

    I have next situation. I set export policy for bgp session as:

    set protocols bgp group EDGE type internal
    set protocols bgp group EDGE local-address x.x.x.x
    set protocols bgp group EDGE family inet unicast
    set protocols bgp group EDGE family inet-vpn any
    set protocols bgp group EDGE family route-target
    set protocols bgp group EDGE authentication-key "$xxxx"
    set protocols bgp group EDGE export pol-announce-internal
    set protocols bgp group EDGE neighbor x.x.x.x
    set protocols bgp group EDGE neighbor x.x.x.x

    set protocols bgp group EDGE export pol-announce-internal
    set policy-options policy-statement pol-announce-internal term temporary then reject

    After it all IPv4 from default table where injected into my MX from routereflector but no L3VPN updates in my VRFs!!!! However my own VRF routes were exported!!! When I deleted export policy from BGP everything starts working. It seams that families for BGP are somehow influenced by this export policy. Please explain if somebody knows what is the reason. Thanks.



  • 2.  RE: export policy influence BGP session L3VPN capabilities
    Best Answer

     
    Posted 05-14-2013 06:43

    The implicit "route-target" family export policy is nixed by your policy, so RR which has this family negotiated(suppose) is not sending vpn routes to you(it has no KNOWLEDGE which vpn routes you are interested)

    Your vpn routes are exported directly from VRF tables so you need   "set protocols bgp group EDGE vpn-apply-export" in order you policy to be evaluated for them.

     

     

    Best Regards,

    Krasi