C7400 ios

[mpalis]

Hello all

I need a recomendation for Cisco IOS for C7400. Main fuction of the C7400 is do NAT for ADSL users (around 1000 NAT entries). We have 122-4(B8) but we have problems with Access-lists, After some investication with Cisco local representative we change IOS which solves the ACL problems but we are know have problems with HIGH CPU. We try 12-3(10b) and some oldest releases but we did not found a stable version. We try 122-16b which works for a day and then it crashes,,

C7400 have 2 Gigabit nad 1 ATM interface,

Your help will be appreciated

[b-watkins]

I have a pair of 7401s that have been running 12.3(11)T for a couple of months on production DS3s and I have had no problems at all.

What do you mean by high CPU? Are you using features that prevent PXF acceleration?

[mpalis]

Well it seems that PXF is working. CPU goes up to 90%. I did not figure out which proccess is responsible for the HIGH CPU. Changing IOS , helps reducing CPU to 45% with the same users and same throughput, but we are facing some problems with ACLs. We try 123-10b, 123-5d. Trying 122-16b works but after a day router crashes.. I will ask our representative to have from us 12.3(11)T to check it.