© 2004 Cisco Systems, Inc. All rights reserved. Printed in USA.
Presentation_ID.scr
353535
© 2004 Cisco Systems, Inc. All rights reserved.
RST-3508
9805_05_2004_c2
CPU Troubleshooting Commands:
Cisco IOS Supervisor
cat4500# sh platform cpu packet driver
( truncated)
Queue rxTail received all guar allJ gurJ rxDrops rxDelays
0 Esmp 63A6B70 25708 100 100 0 5 0 0
1 Control 63A6CF4 5405 595 600 0 5 0 0
2 Host Learning 63A76A0 24 500 500 0 5 0 0
3 L3 Fwd High 63A7E10 0 300 300 0 5 0 0
4 L3 Fwd Medium 63A82C0 0 500 500 0 5 0 0
5 L3 Fwd Low 63A8A90 0 900 900 0 5 0 0
6 L2 Fwd High 63A98A0 0 300 300 0 5 0 0
7 L2 Fwd Medium 63A9D50 0 500 500 0 5 0 0
8 L2 Fwd Low 63AB2E4 99929 899 900 0 5 434063 0
Look for Received Packets and Rx Drops
363636
© 2004 Cisco Systems, Inc. All rights reserved.
RST-3508
9805_05_2004_c2
Source Port/
VLAN
Monitor the CPU on Cisco Catalyst 4500
• Incoming packets are allowed on SPAN destination port
• Monitor the CPU port (excellent in capturing high CPU util)
• Cisco Catalyst 4500: Only LAN Switch where you can monitor on the CPU port
Modules
CPU
CPU
Switch Fabric
Switch Fabric
FFE
FFE
ACL
TCAM
ACL
TCAM
PPE
PPE
Monitor
Destination
Port
Packet
Memory
Packet
Memory
MAC
Table
MAC
Table
Input
Packet
Mirror Source Ports, VLANs, CPU With
SPAN Capabilities on Catalyst 4500
Enable
Inpkts
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