Need some advise... I have a couple of MX5 routers which are currently peering via several devices, i.e not directly connected.
The peering is currently up and stable.. Is it possible to add BFD without restarting the peering?
I have added the following config on both sides;
set protocols bgp group outside-outside-ipv6 neighbor 2a00:xxx:3::xx traceoptions file bgp-bfdset protocols bgp group outside-outside-ipv6 neighbor 2a00:xxx:3::xx traceoptions flag bfd detailset protocols bgp group outside-outside-ipv6 neighbor 2a00:xxx:3::xx bfd-liveness-detection minimum-interval 300set protocols bgp group outside-outside-ipv6 neighbor 2a00:xxx:3::xx bfd-liveness-detection session-mode multihop
Though unfortunatly both sides shows the exact same output of Admindown state;
law@rt1..net# run show bfd session extensive Detect TransmitAddress State Interface Time Interval Multiplier2a00:xxx:3::xx Down 0.000 2.000 3 Client BGP, TX interval 0.300, RX interval 0.300 Local diagnostic None, remote diagnostic None Remote state AdminDown, version 1 Session type: Multi hop BFD Min async interval 0.300, min slow interval 2.000 Adaptive async TX interval 2.000, RX interval 2.000 Local min TX interval 2.000, minimum RX interval 0.300, multiplier 3 Remote min TX interval 0.000, min RX interval 0.000, multiplier 0 Local discriminator 17, remote discriminator 0 Echo mode disabled/inactive, no-absorb, no-refresh Multi-hop min-recv-TTL 1, route table 0, local-address 2a00:xxx:3::xx Session ID: 0x1f60dc1 sessions, 1 clientsCumulative transmit rate 0.5 pps, cumulative receive rate 0.0 pps
(p.s... no logs captured from the bfd trace)Do I have to bounce the session??? Or is it possible to bring up BFD on a BGP session transparently??
Thanks in advance...
this can go... my bad.. had bfd port blocked on IPv6 control plane ACL.. doh