That's not correct. You should take a look at RFC4090. A Patherr message is sent to the head-end node with a flag set to notify it local protection is in use. There are also flags in the RESV RRO to notify the head-end local protection is in use. The head-end node is smart enough to keep using the path until it can reserve a new path and do a MBB operation.
Facility bypass wouldn't be very useful if it only protected traffic for a few ms...:) Phil On 7/6/11 11:50 AM, "David Ball" <[email protected]> wrote: > Just looking for confirmation of a suspicion here. > > If I have an LSP configured with link-protection on every interface >along the way (creating many-to-one Bypass LSPs, as opposed to 1:1 >detours), no secondary standby path defined, and a protected interface >fails, the ingress node will have no ability to perform a >make-before-break, right? Because the Path Tear messages will be sent >both upstream and downstream from the failed interface? The bypass >will only help me up until the upstream nodes process the Path Tears >and a new LSP is signalled from the ingress node....or am I missing >something? > > More familiar with detours, so just checking myself wrt bypasses.... > >Cheers, > >David >_______________________________________________ >juniper-nsp mailing list [email protected] >https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
