Users Guide

Table Of Contents
Usage
Information
The Errdisable Cause column displays one or more reasons for the error-disabled state of an
interface. If an interface is put in to error disabled state for multiple reasons, the interface does not
come up unless you enable automatic recovery for all reasons.
Example
OS10# show errdisable detect
Error-Disable Cause Detect Status
-----------------------------------------------
bpduguard Enabled
OS10# show errdisable recovery
Error-Disable Recovery Timer Interval : 300 seconds
Error-Disable Reason Recovery Status
----------------------------------------
bpduguard Enabled
MLL violation Enabled
MAC-move-violation Enabled
Recovery Time
Left
Interface Errdisable Cause (seconds)
--------------------------------------------------------------------------
ethernet1/1/1:1 bpduguard 30
ethernet1/1/1:2 bpduguard 1
ethernet1/1/10 bpduguard/mac-learning-limit/mac-move 10
port-channel100 Mac-learning-limit 50
port-channel128 mac-move 49
Supported
Releases
10.4.2.0 or later
show spanning-tree interface
Displays spanning-tree interface information for Ethernet and port-channels.
Syntax
show spanning-tree interface {ethernet node/slot/port [:subport] | port-
channel port-id} [detail]
Parameters
ethernet node/slot/port[:subport] Displays spanning-tree information for a physical
interface.
port-channel port-id Displays spanning-tree information for a port-channel number, from 1
to 128.
detail (Optional) Displays detailed information on the interface.
Default Not configured
Command Mode EXEC
Usage
Information
None
Example
os10# show spanning-tree interface ethernet 1/1/7 detail
Port 56 (ethernet1/1/7) of vlan1 is designated Forwarding
Port path cost 500, Port priority 128, Port Identifier 128.56
Designated root priority: 32769, address: 34:17:ec:37:14:00
Designated bridge priority: 32769, address: 90:b1:1c:f4:a6:25
Designated port ID: 128.56, designated path cost: 500
Number of transitions to forwarding state: 1
Edge port: No (default)
Link Type: Point-to-Point
BPDU Sent: 6, Received: 6410
606 Layer 2