[nsp] Frame distribution on catalyst channel

[Nipper, Arnold]

We ran a 4 GE channel (ip both) between two Catalysts 6509 (CatOS 7.2(2)).
Distribution of frames were almost equal. Now we buildt another 5GE channel
and switched all traffic to the new channel. But now distribution is not
longer equal but looks like 2,2,2,1,1. I.e

sw001> (enable) sh channel traffic
ChanId Port  Rx-Ucst Tx-Ucst Rx-Mcst Tx-Mcst Rx-Bcst Tx-Bcst
------ ----- ------- ------- ------- ------- ------- -------
   840  7/15  25.08%  17.57%  17.72%  44.63%  21.54%  21.50%
   840  7/16  24.75%  15.54%  14.20%  27.31%  45.11%  16.99%
   840  8/9   25.26%  51.05%  28.58%  12.95%  17.39%   6.43%
   840  8/16  12.53%   8.08%  14.20%   8.74%   7.71%  42.26%
   840  9/15  12.36%   7.74%  25.28%   6.35%   8.23%  12.79%

There are 100+ routers connected to both switches with a lot of IP addresses
behind each router so that (ip both) should almost distribute even.


Arnold