[c-nsp] upgrading WS-X6K-SUP1A-2GE to sup720 3bxl on 6509

[Tim Franklin]

> Last but not least.. The Sup moved from Slot 1/2 to Slot 5/6....

Don't ignore or underestimate the impact of this if you currently have
line-cards in slots 5 or 6.

By far the biggest piece of work in the actual migration (ignoring the
Sup720 / new chassis testing, which was obviously lengthy in itself) when we
upgraded was getting the surrounding systems to believe that all the (many)
instances of Serial3/x/x.x/x/x/x:x were now Serial1/x/x.x/x/x/x:x without
re-provisioning services, losing historical data, etc.

This was, admittedly, going from Sup2-native to Sup720-native, so we didn't
have anywhere near as much work to do on the actual router configs.

Regards,
Tim.

-- 
____________   Tim Franklin                 e: tim.franklin at colt.net 
\C/\O/\L/\T/   Network Development &        w: www.colt.net 
 V  V  V  V    Product Engineering          t: +44 20 7863 5714 
Data | Voice | Managed Services             f: +44 20 7863 5876