Cisco WS-C4507R Troubleshooting Manual page 17

RST-3508
9805_05_2004_c2
RST-3508
9805_05_2004_c2
© 2004 Cisco Systems, Inc. All rights reserved. Printed in USA.
Presentation_ID.scr
Show Platform CPU Statistics Fields:
ESMP:
•
Even Simpler Management Protocol...used by the CPU for reading line card status:
link, speed, led, etc.
Control:
•
L2 control plane packets go here—STP, CDP, PaGP, LACP, UDLD, etc.
Host learning:
•
Packets with unknown L2 source address are copied to CPU to build CAM table
L3 fwd:
•
GRE tunnels
Gleaning
L2 fwd: Any non-IP switchable packet
•
IPX/Appletalk
Zero TTL field
Non-ARPA encapsulated packets
ARP's
L3 Rx:
•
L3 packets to the switch—SNMP, telnet, ping
ACL forward
•
EIGRP/OSPF updates
© 2004 Cisco Systems, Inc. All rights reserved.
CPU Troubleshooting Commands:
Cisco IOS Supervisor
cat4500# show platform cpu packet statistics
Total packet queues 16
Packets Received by Packet Queue
Queue Total
---------------------- --------------- --------- --------- --------- ----------
Esmp
Control
Host Learning
L3 Fwd High
L3 Fwd Medium
L3 Fwd Low
L2 Fwd High
L2 Fwd Medium
L2 Fwd Low
L3 Rx High
L3 Rx Low
RPF Failure
ACL fwd(snooping)
ACL log, unreach
ACL sw processing
MTU Fail/Invalid
L2 and L3 High, Medium, and Low Are Based on the DSCP/COS
Field of the Packet
© 2004 Cisco Systems, Inc. All rights reserved.
(all)>>> lots of output,
5 sec avg 1 min avg 5 min avg 1 hour avg
42808 38 38
9919 11 10
39 0 0
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
99929 0 5
0 0 0
36 0 0
0 0 0
1165 1 1
0 0 0
0 0 0
0 0 0
33 33 33
look for
34 6
8 1
0 0
0 0
0 0
0 0
0 0
0 0
92 17
0 0
0 0
0 0
1 0
0 0
0 0
0 0
34 34 34