I have two 2600 series internet routers connected to internet with BGP running. No VPN and only 2 LAN interfaces are in use. I have also implemented ACLs (not IOS firewall) on these routers. Bandwidth utilization is less than 10% of WAN bandwidth but still the router CPU utilization is always close to 100%. I am in the process of acquiring new routers. What model should I select?
Following is the output of show version command
-----------------------------------------ROM: System Bootstrap, Version 12.2(7r) [cmong 7r], RELEASE SOFTWARE (fc1)
ROM: C2600 Software (C2600-I-M), Version 12.3(19), RELEASE SOFTWARE (fc2)
RT01 uptime is 1 year, 4 weeks, 2 days, 20 hours, 2 minutes
System returned to ROM by reload at 19:19:00 UTC Fri Feb 2 2007
System restarted at 19:49:18 UTC Fri Feb 2 2007
System image file is "flash:c2600-i-mz.123-19.bin"
cisco 2621XM (MPC860P) processor (revision 0x100) with 28672K/4096K bytes of mem
Processor board ID JAD06350FKW (3438450250)
M860 processor: part number 5, mask 2
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
2 FastEthernet/IEEE 802.3 interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)
I have around 30 ACL entries and I feel ACL's are causing high CPU utilization.
CPU utilization was fine before implementing ACL's.