hi ya
when we had UUnet... its typically $1500 for the T1
and the shadow T1 was about $200..
( am in silicon valley ...costs little more/less here??
- the shadow t1 is always in standby ... unless they detect
that the primary t1 went down... shadow cannot be used till than
but for the same $200 - $500...you can get a rack in a colo...
and if they too are NOT using the same POP as your primary t1 carrier...
you'd be in better shape with a real backup that you can use 24x7
- shadow t1 is not worth it... get a rack at a colo is better
you should have a functional/registered secondary dns with each
"connection" ...
primary dns on west coast... secondary dns on east coast
if people in the office need to get online when the primary t1 goes
down ... get a second t1 from tom-dick-n-harry isp carrier...
and do load sharing...
and pull the plug on the primary dns and see if everything works
c ya
alvin
On Mon, 29 Apr 2002, Harry wrote:
> Our ISP, UUNet is proposing a "shadow T1" line to backup our existing
> T1.
>
> This would involve a separate, dedicated telephone line routed to a
> different POP than our current POP (both POP's are located in
> California). The shadow line would support the same subnet of IP
> addresses we currently operate.
>
> The price for this shadow service is about 1/2 of our primary T1 monthly
> charge.
>
> I'm wondering if other folks on the firewall list have considered this
> or a similar redundancy configuration, and if they have found it to be
> valuable.
>
> TIA
>
> Harry
>
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