Newbie x Cisco IOS-XR x ROV: BCP to not harassing peer(s) and upstream(s)

Mark Tinka mark at tinka.africa
Wed May 11 17:29:04 UTC 2022



On 5/11/22 18:53, Job Snijders via NANOG wrote:

> Hi!
>
> In current versions I think enabling “soft-reconfiguration-inbound 
> always” (also described at
> https://bgpfilterguide.nlnog.net/guides/reject_invalids/#cisco-ios-xr 
> ) should be enough.
>
> Make sure to enable it on every EBGP peer you apply ROV to, or just 
> all EBGP peers.
>
> This knob slightly increase your own memory consumption, but makes 
> your router more “neighbourly”! :-)

Just to add that this is useful on all eBGP speakers based on IOS XR.

It's not required in Junos, because Junos does this implicitly.

A draft RFC we co-authored attempts to offer a solution:

https://www.ietf.org/archive/id/draft-ietf-sidrops-rov-no-rr-01.txt

Mark.


More information about the NANOG mailing list