Re: TE metric and graceful restart

[Alex Zinin <zinin@psg.com>]

Zafar,

> One of the things that it'll do that it'll also prevent someone from using
> these links in the Path computation with "0" bandwidth (while the node in 
> question is restarting). In some scenarios, e.g., signaling for a backup 
> tunnel without no bandwidth reservation, a (remote) node may be interested 
> in Paths with "0" bandwidth.

I don't think there's anything in the OSPF & ISIS TE drafts that
prevents links with max metric from being used in CSPF, so
it is only more of discouragement, not prevention per se...
Is this still interesting? [I guess it might be if CSPF has
two 0-BW paths one through a restarting LSR and another through
an operational one]...

Alex.