Connectivity Guide

Default 20
Command Mode CONFIGURATION
Usage
Information
A device receiving BPDUs waits until the max-hops value expires before discarding it. When a device
receives the BPDUs, it decrements the received value of the remaining hops and uses the resulting value
as remaining-hops in the BPDUs. If the remaining MSTP 1333 hops reach zero, the device discards the
BPDU and ages out any information that it holds for the port. The command configuration applies to all
common IST (CIST) in the MST region.
Example
OS10(config)# spanning-tree mst max-hops 30
Supported
Releases
10.2.0E or later
spanning-tree port
Sets the port type as the EdgePort.
Syntax
spanning-tree port type edge
Parameters None
Default Not configured
Command Mode INTERFACE
Usage
Information
When you configure an EdgePort on a device running STP, the port immediately transitions to the
Forwarding state. Only configured ports connected to end hosts act as EdgePorts.
Example
OS10(config)# spanning-tree port type edge
Supported
Releases
10.2.0E or later
show errdisable
Displays information on errdisable configurations and port recovery status.
Syntax
show errdisable [detect | recovery]
Parameters
● detect—Displays details of detect cause configuration.
● recovery—Displays details of recovery cause, recovery interval, and recovery status of the error
disabled port.
Default None
Command Mode EXEC
Usage
Information
None
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
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