Graham. wrote:
> According to the monitoring I am doing on several VM routers, there is a major outage
> in Liverpool (hostnames = custxxx.know.cable.virginmedia.com) where xxx is the last octet of
> the IP minus 1
> range is within 92.239.181.x
> They all went down at 1558, still down.
>
> Does anyone know how VM IP addresses relate to infrastructure, for example will neighbouring addresses
> share the same street cabinet?
>
This tallies a bit with an extended thread in another group, where
someone provided a traceroute: it appears that virgins CABLE backhaul is
very much a distributed IP network, and therefore it would make for
easier routing if IP blocks were associated with physically close
customers connected to a single upstream router.
I dunno if that applies to ADSL tho. I assume this *is* cable we are
talking about as "custxxx.know.cable.virginmedia.com" would imply such.
Anyway, the point I was making is than unlike BT backhaul, where ATM is
used, Virgin appear to have their own infrastructure and backhaul based
on IP.
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