[f-nsp] Exported routes from VRF: lost BGP attributes

[Alexander Shikoff]

On Mon, Sep 01, 2014 at 09:23:32PM +0200, Wouter Prins wrote:
>    I was thinking about something like this:
>    router bgp x
>     address-family ipv4 vrf vrf-a
>      redistribute connected
>     address-familiy ipv4 vrf vrf-b
>      redistribute connected
>     address-family vpnv4 unicast
>    I don't know if it works, but maybe you can try it on a testbox?
It seems that it didn't help.

Current config:
telnet at lsr1-gdr.ki#show run | b vrf
vrf Crimea-IX
 rd 31210:39751
 address-family ipv4
   route-target export 31210:39751
   route-target import 31210:31210
   route-target import 31210:39751
   import routes vrf DTEL-IX route-map rm-BGP-and-Direct
 exit-address-family
exit-vrf
!
vrf DTEL-IX
 rd 31210:31210
 route-target import 31210:31210
 address-family ipv4 max-route 30000
   route-target export 31210:31210
   route-target import 31210:31210
 exit-address-family
exit-vrf


I.e. two VRFs and I need to import all routes from DTEL-IX to Crimea-IX.
BGP configuration now:
telnet at lsr1-gdr.ki#show run | b bgp
router bgp
 local-as 31210
 neighbor RS-DTEL-IX peer-group
 neighbor RS-DTEL-IX remote-as 31210
 neighbor RS-DTEL-IX next-hop-self
 neighbor RS-DTEL-IX soft-reconfiguration inbound
 
 address-family ipv4 unicast
 neighbor RS-DTEL-IX route-map out rm-to-DTEL-IX
 neighbor RS-DTEL-IX send-community
 exit-address-family
 
 address-family vpnv4 unicast
 exit-address-family
                                                                  
 address-family ipv4 unicast vrf Crimea-IX                        
 redistribute connected                                           
 redistribute bgp                                                 
 exit-address-family                                              
                                                                  
 address-family ipv4 unicast vrf DTEL-IX                          
 neighbor 193.25.180.255 peer-group RS-DTEL-IX                    
 neighbor 193.34.200.254 remote-as 39751                          
 neighbor 193.34.200.254 soft-reconfiguration inbound             
 neighbor 193.25.180.255 send-community                           
 neighbor 193.34.200.254 maximum-prefix 500 teardown              
 neighbor 193.34.200.254 route-map in rm-from-Crimea-IX           
 neighbor 193.34.200.254 route-map out rm-to-Crimea-IX            
 neighbor 193.34.200.254 send-community                           
 redistribute connected                                           
 redistribute bgp                                                 
 exit-address-family                                              



And the same route is present in both VRFs but in Crimea-IX it lost 
BGP attributes:

telnet at lsr1-gdr.ki#show ip bgp vrf DTEL-IX route detail 5.2.32.0/21  
Number of BGP Routes matching display condition : 1
Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST C:CONFED_EBGP D:DAMPED
       E:EBGP H:HISTORY I:IBGP L:LOCAL M:MULTIPATH m:NOT-INSTALLED-MULTIPATH
       S:SUPPRESSED F:FILTERED s:STALE
1       Prefix: 5.2.32.0/21,  Status: BI,  Age: 10h59m35s
         NEXT_HOP: 193.25.180.81, Metric: 0, Learned from Peer: 193.25.180.255 (31210)
          LOCAL_PREF: 100,  MED: none,  ORIGIN: igp,  Weight: 0
         AS_PATH: 29076 5563 41560 41560
            COMMUNITIES: 29076:900 29076:50000 29076:50030 29076:52001 29076:52003 31210:29076
            Extended Community: SOO 31210:29076 
            Adj_RIB_out count: 1,  Admin distance 200
       Last update to IP routing table: 10h59m35s, 1 path(s) installed:
       Route is advertised to 1 peers:
        193.34.200.254(39751)                    


telnet at lsr1-gdr.ki#show ip bgp vrf Crimea-IX route detail 5.2.32.0/21
Number of BGP Routes matching display condition : 1
Status A:AGGREGATE B:BEST b:NOT-INSTALLED-BEST C:CONFED_EBGP D:DAMPED
       E:EBGP H:HISTORY I:IBGP L:LOCAL M:MULTIPATH m:NOT-INSTALLED-MULTIPATH
       S:SUPPRESSED F:FILTERED s:STALE
1       Prefix: 5.2.32.0/21,  Status: BL,  Age: 0h6m0s
         NEXT_HOP: 193.25.180.81, Learned from Peer: Local Router
          LOCAL_PREF: 100,  MED: 0,  ORIGIN: incomplete,  Weight: 32768
         AS_PATH: 
       Route is not advertised to any peers


-- 
MINO-RIPE