Using Memory Consistency Check Routines; Using On-Board Failure Logging - Cisco Catalyst 3560-X Software Configuration Manual

Using Memory Consistency Check Routines

Using Memory Consistency Check Routines
The switch runs memory consistency check routines to detect and correct invalid ternary content
addressable memory (TCAM) table entries that can affect the performance of the switch.
If the switch cannot fix the error, it logs a system error message specifying the TCAM space where the
error is located:
•
•
The output from the show platform tcam errors privileged EXEC command provides information about
the TCAM memory consistency integrity on the switch.
Beginning in privileged EXEC mode, use the show platform tcam errors command to display the
TCAM memory consistency check errors detected on the switch:
Command
show platform tcam errors Displays TCAM memory consistency check errors in the HQATM, and
This example shows the output of the show platform tcam errors command:
Switch# show platform tcam errors
TCAM Memory Consistency Checker Errors
--------------------------------------
TCAM Space
HFTM
HQATM
Table 1-3
Character
Values
Masks
Fixups
Retries
Failures
For more information about the show platform tcam errors privileged EXEC command, see the
command reference for this release.

Using On-Board Failure Logging

You can use the on-board-failure logging (OBFL) feature to collect information about the switch. The
information includes uptime, temperature, and voltage information and helps Cisco technical support
representatives to troubleshoot switch problems. We recommend that you keep OBFL enabled and do
not erase the data stored in the flash memory.
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
1-26
Hulc Forwarding TCAM Manager (HFTM) space: Related to the Layer 2 and Layer 3 forwarding
tables.
Hulc quality of service (QoS)/access control list (ACL) TCAM Manager (HQATM) space: Related
to ACL and ACL-like tables such as QoS classification and policy routing.
Values Masks
0 0
0 0
Definitions of Fields in TCAM Checker Output
Description
The number of invalid values.
The number of invalid masks.
The number of initial attempts to fix the invalid values or masks.
The number of repeated attempts to fix the invalid values or masks.
The number of failed attempts to fix the invalid values or masks.
Purpose
HFTM.
Fixups Retries Failures
0 0 0
0 0 0
Chapter 1 Troubleshooting
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