Support for Adj-RIB-Out monitoring

[vkotronis]

Do you know if there is currently support in place for monitoring the Adj-RIB-Out of a router connected to gobmp via a BMP session? If not, is it in the roadmap? Relevant resource: https://datatracker.ietf.org/doc/rfc8671/
I am not sure if such monitoring is officially supported in commercial or open-source software routers yet.
Thanks in advance for the clarification!

[brmcdoug]

Hi Vasileios,
The primary devices we have access to test with are Cisco XR and XE, and unfortunately neither OS supports Adj-RIB-Out. It looks like gobmp should pick it up as Serguei has accounted for the O-Flag: https://github.com/sbezverk/gobmp/blob/master/pkg/bmp/per-peer-header.go#L25

If you have access to a platform which does support Adj-RIB-Out please feel free to get it connected and send gobmp logs our way.
-Bruce

[vkotronis]

Hello and thanks for the response! I am using gobgp software routers which are quite handy, and have posted the same question on their implementation osrg/gobgp#2550 . Will let you know when I receive the response. In the meanwhile I may have access to Juniper routers supporting RIB-out (https://supportportal.juniper.net/s/article/Change-in-implementation-of-BMP-protocol-in-Junos-OS-release-19-1-and-18-2X75-D30?language=en_US) but that is more difficult to acquire than in-software.

On GoBMP's side what do I have to configure CLI-wise to enable this kind of monitoring, assuming that the router supports it? Or is it in theory out-of-the-box as long as the router provides this capability?

[brmcdoug]

Hi, nothing to configure on the GoBMP side. I don't know if it'll work out of the box, but the O-flag code has me feeling optimistic :)
Maybe enable logging at v=6 to capture raw message data from the adj-RIB-out coming from the router.