The MPLS WG Archive

["David Allan" <dallan@nortelnetworks.com>]

Title: RE: Comments on draft-makam-mpls-recovery-frmwrk-00

Vishal:

re: "lower" vs. "other" layers

The issue to me is the wording. There are two thoughts we seem to be discussing:

1) Not taking premature recovery action in the presence of lower layer restoration mechanisms.

2) Considering all sources of knowledge of failure (including layer violations).

I'm talking about the first, when I say "lower", the second is where you mean "other" and where we agree problems reside.

I think the first may be a bigger problem area than we think. Because MPLS is defined over multiple media, presumably an LSP can span multiple media, and therefore WHERE a defect occurs matters as far as how fast we can take corrective action.

re: minimizing single point of failure

Deferring to co-authors is fine with me.

cheers
Dave