Re: [SLUG] server outage - update

From: Andrew M. Hoerter (amh@pobox.com)
Date: Mon Oct 13 2003 - 12:18:28 EDT


On Mon, 13 Oct 2003, R P Herrold wrote:

> Actually, as SONET is bi-directional, and we have an outage [a
> SONET ring should 'heal' by sending traffic in the non-broken
> direction], it means they have in us a segment with TWO cuts
> -- isolating us all the way back.

Unfortunately, logical diversity doesn't always equate to physical
diversity. Sometimes the only way to get physical diversity is by writing
it into a contract, as telcos are notorious for aggregating circuits
whenever it suits their purposes.

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