Verifying The Errdisable State Using The Cli - Cisco Nexus 9000 Series Troubleshooting Manual

Troubleshooting Ports

Verifying the ErrDisable State Using the CLI

SUMMARY STEPS
1. switch# show interface interface slot/port
2. switch# show logging logfile
DETAILED STEPS
Command or Action
Step 1 switch# show interface interface slot/port
Example:
switch# show interface ethernet 1/14
e1/7 is down (errDisabled)
Step 2
switch# show logging logfile
Example:
switch# show logging logfile
This example shows how to display the switch log file and view a list of port state changes. An error was
recorded when someone attempted to add port e1/7 to port channel 7. The port was not configured identically
to port channel 7, so the attempt failed:
switch# show logging logfile
. . .
Jan
Jan
port-channel 7 is down (No operational members)
Jan
Jan
(Admnistratively down)
Jan
speed is not compatible
Jan 4 06:55:56 switch%PORT_CHANNEL-5-PORT_ADDED: e1/7 added to port-channel 7
4 06:54:04 switch %PORT_CHANNEL-5-CREATED: port-channel 7 created
4 06:54:24 switch %PORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface
4 06:54:40 switch %PORT_CHANNEL-5-PORT_ADDED: e1/8 added to port-channel 7
4 06:54:56 switch %PORT-5-IF_DOWN_ADMIN_DOWN: Interface e1/7 is down
4 06:54:59 switch %PORT_CHANNEL-3-COMPAT_CHECK_FAILURE:
Verifying the ErrDisable State Using the CLI
Purpose
Verifies that the device detected a problem and disabled the
port.
After verifying the port is disabled, check cables,
Note
SFPs, and optics.
Displays the switch log file and view a list of port state
changes.
Cisco Nexus 9000 Series NX-OS Troubleshooting Guide, Release 7.x
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