[c-nsp] bgp vpls rfc4761 - no failover at multihomed ce site

[Aaron]

Hi All, it doesn't seem that the AC's going down cause a bgp reconvergence.

 

my test architecture is now, a single homed ce site off a asr9k (4.1.2) and
a second site dual-homed ce off (2) me3600's (15.3(2)S2)....

 

when i shutdown the (ac, attachment circuit) pe-ce port on the 3600-2 the
traffic doesn't failover to 3600-1.  the only way i can get it to failover
is to completely remove the vfi context in 3600-2.  then i see the 9k fire
off a pw to 3600-1 and traffic starts to flow again to site 2.

 

 
|----eng-lab-3600-1-----occam----- site2-pc2

 
|                                                |

 
|                                                |

 
|                                                |

site1-pc---eng-lab-9k-1----mplscloud----|
occam----- site2-pc1

 
|                                                |

 
|                                                |

 
|                                                |            

 
|----eng-lab-3600-2-----occam

 

3600-1 is 10.101.12.251

3600-2 is 10.101.12.250

 

 

 

*** before i delete vfi context from 3600-2....

 

RP/0/RSP0/CPU0:eng-lab-9k-1#sh bgp l2vpn vpl rd 64512:45

...

   Network            Next Hop        Rcvd Label      Local Label

Route Distinguisher: 64512:45 (default for vrf v45:v45)

*> 1:1/32             0.0.0.0         nolabel         16315

*>i2:1/32             10.101.12.250   18              nolabel

* i                   10.101.12.251   307             nolabel

 

 

*** after i delete vfi context from 3600-2....

 

RP/0/RSP0/CPU0:eng-lab-9k-1#sh bgp l2vpn vpl rd 64512:45

   Network            Next Hop        Rcvd Label      Local Label

Route Distinguisher: 64512:45 (default for vrf v45:v45)

*> 1:1/32             0.0.0.0         nolabel         16315

*>i2:1/32             10.101.12.251   307             nolabel

 

 

Aaron