Subject: [pim] Need help on PIM-SM protocol-- fault tolerance of ON/OFF tree router or link failures

From: Lt Cdr Parthiban <[email-masked]>
Date: Thu, 6 Oct 2005 06:41:33 -0700 (PDT)

i have the follwoing doubts. It would very helpful to
me if somebodu can throw light on these issues

 (i)    For RP selection, Fault tolerance and mapping
to multicastgroups either of these mechanisms are use 
      
    (a)BSR (b)Auot-Rp, (c)Anycast-RO or (d) Staic RP
confign,

  what is the fault tolerance scheme implemented in
case of an OFF-tree/On-tree router or a link fails in
Shared Tree or SPT mode. Is there any back-up paths
being fromed and activated in case of such a failure
or periodic Join/Prune messages are used to natively
build the tree once again. Is this scheme efficient???

  what happens when the router/links recovers after a
failure.

(ii)In NS2, PIM protocls ST and BST implementation
does it correspond to revised iertf-version 2 or not.
what is the fault tolerance used in NS2.28 bersion in
PIM protocols. If i have to modify the falut tolerant
part what files should be modified and how to go abt
the modification

 i am eagerly waiting for a reply from all those u
have worked on PIM-SM protocols and suggestions as to
how to incorporate my fault tolerance scheme in NS2.28
PIM protocol implentation.

with regards

Parth

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Lt Cdr S Parthiban
M.Tech(CS)
Indian Institute of Technology -  Kharagpur
Mob No. +919732652938
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