[CCAMP] Summary of draft-ali-ccamp-gmpls-uni-error-notification-00

["Matt Hartley (mhartley)" <[e-mail]>]

Problem statements
==================

This draft addresses two issues with GMPLS-UNI.

1. When a Path-Error message is generated, a node can add an IP address to identify the source of the error. If this happens within a core network, this may be a problem if the core's policy is to avoid allowing any information about the core topology to propagate outside the core.

2. if a failure for an established GMPLS-UNI LSP occurs within the core and is repaired, there's no way for the UNI-C control plane to know that the repair has occurred.

CCAMP relevance
===============

This is a simple extension to GMPLS-UNI, and therefore falls within CCAMP's charter.

Solutions
=========

1. Allow a node to change the IP address in a Path-Error message to an address that it owns, in order to conceal the core topology/address from the upstream node(s).

2. Define a new Path-Error Notify subcode so that a notification of LSP repair can be sent.