[j-nsp] BGP route filtering capabilities for inet-vpn (1/128) address family

[Jeff Haas]

http://www.juniper.net/documentation/en_US/junos15.1/topics/reference/configuration-statement/vpn-apply-export-edit-protocols-bgp-vp.html <http://www.juniper.net/documentation/en_US/junos15.1/topics/reference/configuration-statement/vpn-apply-export-edit-protocols-bgp-vp.html>

> On Jan 29, 2016, at 10:09 AM, Adam Chappell <adam.chappell at gmail.com> wrote:
> 
> Does anyone have useful experience regarding the use of JUNOS routing
> policy to control the propagation of BGP routes where the address family
> isn't the usual family inet?
> 
> I'm looking at the typical RFC4364 chapter 10b option for VPN labelled
> traffic exchange between EBGP peers and realising that my 14.1 MX platform
> doesn't seem to apply policy to this address family in the same way at all.
> 
> adamc at Virtual2> show bgp neighbor 192.0.2.1
> Peer: 192.0.2.1+179 AS 2    Local: 192.0.2.2+59927 AS 1
> Type: External    State: Established    Flags: <Sync>
> Last State: OpenConfirm   Last Event: RecvKeepAlive
> Last Error: None
> Export: [ NO-ROUTES ]
>  Options: <Preference LocalAddress AddressFamily PeerAS Rib-group Refresh>
>  Address families configured: inet-unicast inet-vpn-unicast
> [...]
> 
> adamc at Virtual2> show policy NO-ROUTES
> Policy NO-ROUTES:
>   Term unnamed:
>       then reject
> 
> adamc at Virtual2> show route advertising-protocol bgp 192.0.2.1
> 
> bgp.l3vpn.0: 6 destinations, 8 routes (6 active, 0 holddown, 0 hidden)
>  Prefix   Nexthop       MED     Lclpref    AS path
>  2:100:10.100.0.0/16
> *                         Self                                    I
>  2:100:10.100.0.2/32
> *                         Self                                    I
>  2:200:10.200.0.0/16
> *                         Self                                    I
>  2:200:10.200.0.2/32
> *                         Self                                    I
> 
> [...]
> Any pointers appreciated.
> 
> -- Adam.
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