Robert,
>From: Robert Raszuk Sent: Wednesday, May 09, 2012 11:00 PM > >Jeff, > >I do not understand why we are not going to re-advertise "good" routes >with lowest local preference which would not result in holes of some >boxes understanding g-shut community and some not. What you propose (using LOCAL_PREF) is what the g-shut draft also propose. >In fact I spoke to Bruno in the past on that and I was hoping we all >converged that g-shut community would be used only on the EBGP side to >indicate to the peer that it should in turn lower local pref on his >side. The g-shut community has always been used to signal the ghsut only on the eBGP side. On the iBGP side, LOCAL_PREF has always been used. > Apparently g-shut draft still calls for this new community to be >used both on iBGP and eBGP side. On the iBGP side, LOCAL_PREF is used to lower the preference of the g-shut draft. In _addition_ to this, the g-shut community is attached for _informational_ purpose. Because some AS internal BGP policy may have a need to know that the route is being g-shut. And it's cleaner to use a community to provide the root cause rather than try to guess from the low LOCAL_PREF the root cause. Regards, Bruno > >Regards, >R. > >> On Wed, May 09, 2012 at 03:32:52PM -0500, Tony Li wrote: >>> Understood. I have no issues with withdrawn routes. The issue is with g- >shut routes that continue to sink traffic. >> >> Perhaps I'm unclear on your reservations. >> >> If we don't go through something like graceful shutdown and leave the >> peering session up, we're potentially going to pull significantly more >> traffic toward the "bad" peering session than if we didn't do such a thing. >> >> -- 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 _________________________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, France Telecom - Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, France Telecom - Orange is not liable for messages that have been modified, changed or falsified. Thank you. _______________________________________________ GROW mailing list GROW@ietf.org https://www.ietf.org/mailman/listinfo/grow
