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FRR processing time

  • From: "YAMAMOTO, Susumu" <yamamoto.susumu@lab.ntt.co.jp>
  • Date: Thu, 25 Dec 2003 09:52:42 +0900
  • Cc: matsuoka.yasuyuki@lab.ntt.co.jp, shimizu.shigeki@lab.ntt.co.jp

Hi all,

I have a question on node backup mechanism in Fast Reroute.

According to the draft, the protected LSPs going out of a PLR have
different labels for each, then especially in case of link/node failure,
the PLR have to sweep entire label table and find out the LSPs
to push a label for bypass LSP on. This process seems to take
time much more than 50ms or so, because typically with existing
routers partial changes of label table would take more than 1sec
from our experiences.

Do you have already any implementation along the draft satisfying
the processing time requirement, or I might misunderstand about
the specification of FRR ?

Thanks,
-Susumu