Hi,
I’m successfully using BIRD with the Go Looking Glass from
https://github.com/xddxdd/bird-lg-go. I haven’t needed to use the birdc CLI
until now, and I’m a bit confused by it in ways the docs don’t appear to
address.
(I’m running default distro pkgs on Alma Linux 8.5, one of the post-CentOS RHEL
rebuilds.)
The output I get looks like:
[root@lg2 ~]# birdc show route | head
BIRD 2.0.9 ready.
Table master4:
223.94.242.0/23 unreachable [uwpg_rtr1_v4 2022-03-26 from 216.73.71.131] *
(100) [AS56041?]
unreachable [umrtr2_v4 2022-03-26 from 206.211.216.52]
(100) [AS56041?]
unreachable [umrtr1_v4 2022-03-26 from 206.211.216.51]
(100) [AS56041?]
181.123.200.0/22 unreachable [umrtr1_v4 2022-03-26 from 206.211.216.51] *
(100) [AS23201i]
unreachable [umrtr2_v4 2022-03-26 from 206.211.216.52]
(100) [AS23201i]
unreachable [uwpg_rtr1_v4 2022-03-26 from 216.73.71.131]
(100) [AS23201i]
88.218.186.0/24 unreachable [umrtr1_v4 2022-03-26 from 206.211.216.51] *
(100) [AS62240i]
unreachable [umrtr2_v4 2022-03-26 from 206.211.216.52]
(100) [AS62240i]
1. Is the “unreachable” bit normal on a looking glass / route collector?
2. What’s with the “?” at the end of some ASes?
3. Where’s the AS paths? All I seem to get is the terminal AS.
I’m not sure if I’m not using the tool correctly, or if I’m even using the
right tool in the first place.
Pointers / clues appreciated?
Thanks,
-Adam
Adam Thompson
Consultant, Infrastructure Services
[MERLIN]
100 - 135 Innovation Drive
Winnipeg, MB, R3T 6A8
(204) 977-6824 or 1-800-430-6404 (MB only)
[email protected]<mailto:[email protected]>
www.merlin.mb.ca<http://www.merlin.mb.ca/>
