[c-nsp] Oversubscription of Bandwith point in failover-case

[Michael Markstaller]

Hi,

I've got a small desing concern: I have in one small POP two 7206VXR/NPE400 which should be designed fully redundant; 
means: I have all port-adapters (5xPA-2E3, 4 used and 2xPA-MC-E3, 1 used) N+1 and in case one 7206VXR somehow dies I want to be able to plug over the in-use PA's into the remaining unit.
But when I do this, I'll have to slightly oversubscribe the BW-point for the desaster-case.. 

Now, as this a) isn't likely to happen at all and b) no lines are running fully loaded (approx peaks are 30% of BW) I think it's a quite high-available design. 
another thing is the FE's also aren't loaded and only one is used so this should cut the BW-point for the IO-board to 200..

Just wanted to know what you think ? Is it acceptable to oversubscribe BW-points in desaster case for 4-8h or should I put another 7206 in spare there ?
(I have contracts for the boxes but in case something fails I cannot discuss & wait some hours..)


regards

Michael