1999-03-17-02:39:27 David Lang:
> As for redundancy, it depends on what sort of downtime you can afford if a
> switch fails. I decided that the most cost effective method for me was to
> order 9 3com 3300 switches for my 6 networks (8 needed for the networks
> and one spare) As we have round the clock operators, if a switch fails we
> can unplug everything from one switch and plug in into the new switch in a
> very short time period. (we did have to try this one day so we know it is
> under 5 min to do the switch)
And there's another thing worth considering: what happens when your switch
dies? A cold spare works a lot better when you aren't obliged to restore a
clever and complex VLAN config before it can begin doing its job.
AFAIK, "hot spare" switches only happen if you have siamese transceivers with
double wiring to the end machines, and dynamic load balancing and failover
only happens if you have multiple interfaces on the end machine, and run
internet-style routing software everywhere. And if you can afford shenanigans
like that you can also afford to buy multiple switches, one for each security
domain.
-Bennett
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