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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical show interface switch
There used to be an undocumented command in Cisco IOS that would
provide statistics about how packets were being dealt with -- namely
'show interface switch'. A sample output of the command:
Ethernet1/1
Throttle count: 0
Protocol Path Pkts In Chars In Pkts Out Chars Out
Other Process 451 54909 24890 1493400
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
IP Process 17354 2180875 123854 12437965
Cache misses 18678
Fast 13066464 788505528 11642545 4290345939
Auton/SSE 0 0 0 0
Trans. Bridge Process 0 0 104 6240
Cache misses 0
Fast 549 38962 63 8268
Auton/SSE 0 0 0 0
DEC MOP Process 0 0 414 31878
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Spanning Tree Process 0 0 584 35040
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
ARP Process 75404 4531576 149 8940
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
CDP Process 35 10885 533 168537
Cache misses 0
Fast 0 0 0 0
Auton/SSE 0 0 0 0
For certain this command exists in versions of 11.X vintage, although
it seems to have disappeared in 12.X. Does anyone know why it has been
abandoned? These are usefull statistics from a debugging perspective
(i.e. why is this router crumbling under high traffic load? because
it's process switching all of its packets) and I don't think that it's
possible to garner them from netflow. Has it been replaced by another
undocumented command?
Cheers,
Will Waites
[email protected]
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