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.
