There is already overload bit to accomplish the maintenance purposes, Why do you guys repeat such work again?
Aijun Wang China Telecom > On Mar 28, 2023, at 18:00, Shraddha Hegde > <[email protected]> wrote: > > > Hi Robert, > > > Second, if you say this is needed for BGP free deployments then I question > > the merit on the basis that UPA is >ephemeral and expires say in 120 sec > > which will not be enough for most planned maintenance work. So if someone > > >insists to add UP Flag it should be not just a bit but also a time or time > > delta from set UTC where it is expected that >provided prefix will be down, > > That is a good point that there should be a max-time associated with > maintenance. > I do not think that this needs to be signaled in IGP. It can be a local > configuration. > > Rgds > Shraddha > > > > Juniper Business Use Only > From: Lsr <[email protected]> On Behalf Of Robert Raszuk > Sent: Monday, March 27, 2023 1:36 PM > To: lsr <[email protected]> > Subject: [Lsr] Interdomain UPA & UP Flag > > [External Email. Be cautious of content] > > Hi, > > I would like to get more clarification in respect to extending External LSAs > for UPA. Area summary use case is pretty clear - but in case of > redistribution (typical src of external LSAs) IMO we are going way too far > with this. Let's all keep in mind that this is a pulse designed to trigger > upper protocol switchover. > > Needless to say that would work only via one hop by design as redistribution > happens via RIB and by definition of UPA unreachable routes are not being > installed in RIB in the first place. > > On the apparently relative terms I do not see a need for the UP Flag. First > planned maintenance should be solved by BGP protocol and there are already a > number of tools in BGP allowing one to do it. > > Second, if you say this is needed for BGP free deployments then I question > the merit on the basis that UPA is ephemeral and expires say in 120 sec which > will not be enough for most planned maintenance work. So if someone insists > to add UP Flag it should be not just a bit but also a time or time delta from > set UTC where it is expected that provided prefix will be down, > > Kind regards, > R. > _______________________________________________ > Lsr mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/lsr
_______________________________________________ Lsr mailing list [email protected] https://www.ietf.org/mailman/listinfo/lsr
