we have upgraded the version 6.3.5 to 7.2 (3) on a PIX 525 .
Our client has got a 1000 user network and report problem of internet download latency that increase about 200 % .
example: a 100 Mbyte file take 5 minutes before the upgrade . Now takes 15 or 20 minute
The carrier ( STM-1 lines ) do not report any changes over the line.
We have just fix up the issue over the ftp connection using the class-map method and allow MSS with higher range
But this problem could not fix yet with this method
Any other suggestion ?
PS Coordinator Network Security
Via dell'Artigianato 2/B
20061 Carugate - Italy