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RE: clarification.

There is the Acceptable Label Set. It can be included in the Path Err if the
Upstream Label is unacceptable.

Michael Mandelberg



-----Original Message-----
From: ramasamy ramanathan [mailto:ramsrm@tdd.sj.nec.com]
Sent: Wednesday, August 06, 2003 9:11 PM
To: ccamp@ops.ietf.org
Subject: clarification.


hi all,

Could anyone help me out with the following question?

For bi-directonal LSP, we specify upstream label in PATH message. For the
FORWARD direction we can specify label set or suggested label, so that
narrowing the nexthop label allocation range. thereby reducing the
probabaility of failure. For REVERSE path we don't have anything, while
sending the PATH message, we allocate a label and send it out without taking
the input from the nexthop. so the probablitiy of nextnode sending the error
message to this upstream label is more right? is there any mechanism to
avoid this?

thanks
rams.