The problem is that we receive something like %14 process switched for IP Input and out of surprise %82 hardware switch CPU utilization. The box starts to drop packets after that and we are forced to remove NAT. Without NAT the device is handling 300mbps traffic with just %5 CPU utilization.
CPU utilization for five seconds: 99%/82%; one minute: 22%; five minutes: 9%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
123 17024692 133043688 127 13.67% 3.64% 1.73% 0 IP Input
Another important issue is that when ever we activate the NAT the following error appears on the console.
Dec 13 10:11:21.231: %FM_EARL7-4-FEAT_FLOWMASK_REQ_CONFLICT: Feature NAT requested flowmask Intf Full Flow conflicts with other features on interface GigabitEthernet1/1.14, flowmask request Unsuccessful for the feature
Dec 13 10:11:21.251: %FM-2-FLOWMASK_CONFLICT: Features configured on interface Vlan20 have conflicting flowmask requirements, traffic may be switched in softwareDec 13 10:11:21.259: %FM_EARL7-4-MLS_FLOWMASK_CONFLICT: mls flowmask may not be honored on interface Vlan20 due to flowmask conflict
We have tried both flow ip masks of interface-full and full but no difference. Any time we use "mls ip nat netflow-frag-l4-zero" the CPU utilization drops suddenly to %5 but the NAT is not functioning and there the NAT translation table is empty. The IOS currently running on the box is "s72033-advipservicesk9_wan-mz.122-18.SXF12.bin". Does any one has any idea?
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
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