Tim, Why not just send BGP Message Type 5 verbatim ? Are you saying that BMP is not sending this message to BMP receivers when arriving from BGP peers of the router ? If so why ?
Thx, R. On Fri, Sep 23, 2022 at 2:03 AM Tim Evens (tievens) <tievens= 40cisco....@dmarc.ietf.org> wrote: > When I wrote route-refresh, that was from the router/sender side, not BMP > receiver sending a route-refresh. BMP is still write-only. > > > > There are use-cases for re-syncing the RIB to the BMP receiver. Some of > the methods today are to clear the peer, request a route-refresh in, or to > reset the BMP feed. This is a bit intrusive to the router (sender) and BMP > receiver. Having to go to the router to request a refresh to the BMP > server, IMO, is still okay. The problem is that control knobs for refresh > are at the BGP peer level, not BMP. For Adj-RIB-In Pre-Policy, it makes > sense to do that on the peer, but for Post-Policy, Adj-RIB-Out and > Local-RIB, it doesn’t really make sense. Having a knob to initiate BMP > side refresh would be very nice and hopefully less intrusive. > > > > Regardless of the BMP server needing a refresh, a BMP server does not know > when someone has requested route-refresh IN at the peer level (maybe it was > requested for policy change, …) Instead, the BMP receiver, blindly, > receives a boat load of updates with no awareness that it was a new RIB > dump or controlled refresh. In this case, it would appear to be churn. > IMO, there is value in having a message to signal the receiver that a > refresh is coming, followed by an EoR. A PEER_UP could be used for this, > but that is intrusive and misuse of PEER_UP. > > > > --Tim > > > > On 9/22/22, 11:03 AM, "Jeffrey Haas" <jh...@pfrc.org> wrote: > > > > > > > On Sep 21, 2022, at 7:42 AM, Zhuangshunwan <zhuangshunwan= > 40huawei....@dmarc.ietf.org> wrote: > > > > Hi Tim and All, > > > > I think the idea of a "BMP route refresh" would be appreciated, it will > helps keep the information synchronized between the BMP Server and the BMP > Client. > > Would someone clarify what they mean by a bmp route refresh? > > The BMP protocol was intentionally designed as write-only. > > -- Jeff > _______________________________________________ > GROW mailing list > GROW@ietf.org > https://www.ietf.org/mailman/listinfo/grow >
_______________________________________________ GROW mailing list GROW@ietf.org https://www.ietf.org/mailman/listinfo/grow
