I found this sentence to be quite instructive.
\begin{quote} In connection with link failures, we note that one could pre-compute a good weight setting for each possible link failure and have them ready for loading when needed. \end{quote}
That has some interesting operational issues, one would think, especially in large networks that are dense partial meshes, with associated link failure scenarios.
Indeed. Especially considering the potential introduction of transient fowarding loops when attempting to utilize pre-computed backup "links" in a vanilla DA-based packet-switched network. -danny
On Sun, 14 May 2000, Danny McPherson wrote:
Indeed. Especially considering the potential introduction of transient fowarding loops when attempting to utilize pre-computed backup "links" in a vanilla DA-based packet-switched network.
I don't care about transient loop induction while in the process of converging. That problem is much harder to solve. What I do care about is a table like the following handed to the NOC/operational folks. In case link A is down: If nothing else is wrong: type in the following..... If link B is down: type in the following..... If link C is also down: type in the following... If link C is down, but B is up ..... I sense combinatorials and other unpleasantness lurking. /vijay
participants (2)
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Danny McPherson -
Vijay Gill