Forwarding Protocols • Re: V7.5 VPNv4 Route Reflector Problem

Right. Sorry, might have confused things a little here. My issue is with BGP-VPLS... Although at first look, seems related to the BGP route reflector issue previously.

More details...

We have a full Mikrotik environment, configured with MPLS etc. All is working fine in ROS 6.49.x… In fact, everything has recently been upgraded to being ROS 7.12.1, with the exception of the BGP route reflectors. Whenever we attempt to do this, the BPG signaled VPLS sessions start to flap, and re-establish themselves every few seconds.

BGP relevant parts are:

6.49.x:-

/routing bgp instance
set default disabled=yes
add as=65064 name=vpls router-id=100.127.69.10

/routing bgp peer
add address-families=l2vpn instance=vpls name=IPL-GS.L5.R1.11-FW01 \
remote-address=100.127.66.15 remote-as=65064 route-reflect=yes ttl=default update-source=br.loop1

7.12.1:-

/routing bgp template
set default disabled=yes output.network=bgp-networks
add as=65064 disabled=no name=vpls output.network=bgp-networks router-id=100.127.69.10

/routing bgp connection
add address-families=l2vpn cisco-vpls-nlri-len-fmt=auto-bits connect=yes \
listen=yes local.address=br.loop1 .role=ibgp-rr name=IPL-GS.L5.R1.11-FW01 \
remote.address=100.127.66.15 .as=65064 .port=179 templates=vpls

Non BGP-VPLS sessions establish fine, and are stable…

BGP sessions show up as “established”, but the sessions “cycle” as can be seen by the bridge port, showing the vplsXXXX changing quickly (seconds)…

Any assistance would be appreciated.

Thanks.

Statistics: Posted by Wazza — Mon Dec 25, 2023 2:37 pm

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