nanog mailing list archives
Re: High CPU utilization w/VRF NAT - Cat6500
From: harbor235 <harbor235 () gmail com>
Date: Tue, 13 Nov 2012 15:43:40 -0500
What Supervisior do you have? If its an older SUP NAT may be done in software, which sounds like you are currently experiencing. Its not hard to max out a 6500 CPU. -Mike On Tue, Nov 13, 2012 at 1:44 PM, Kenneth McRae <kenneth.mcrae () dreamhost com>wrote:
I would recommend you do this on a firewall (fwsm or something external).. On Tue, Nov 13, 2012 at 10:39 AM, Rodrick Brown <rodrick.brown () gmail comwrote:~80 or so static NAT's configured, multiple versions of IOS tested. Most of the traffic is being punted to the CPU through the NAT interfaces causing high CPU utilization. Increasing fast aging timers had 0 benefit, TCAM utilization is less than 5% Does anyone have any thoughts on other configuration tweaks I shouldtry? Ithink we're at the point where new hardware maybe FWSM or anotherplatformfor NAT should be explored. --RB-- Best Regards, Kenneth McRae *Sr. Network Engineer* kenneth.mcrae () dreamhost com Ph: 323-375-3814 www.dreamhost.com
Current thread:
- High CPU utilization w/VRF NAT - Cat6500 Rodrick Brown (Nov 13)
- Re: High CPU utilization w/VRF NAT - Cat6500 Kenneth McRae (Nov 13)
- Re: High CPU utilization w/VRF NAT - Cat6500 harbor235 (Nov 13)
- Re: High CPU utilization w/VRF NAT - Cat6500 Kenneth McRae (Nov 13)