Stp Maintenance Configuration; Mstp Displaying And Debugging - 3Com 7757 Configuration Manual

274 C 30: MSTP C
HAPTER
STP Maintenance
Configuration
Introduction
Enabling Log/Trap
Output for Ports of
MSTP Instance
Configuration Example
MSTP Displaying and
Debugging
ONFIGURATION
In a large-scale network with MSTP enabled, there may be many MSTP instances,
and so the status of a port may change frequently. In this case, maintenance
personnel may expect that log/trap information is output to the log host when
particular ports fail, so that they can check the status changes of those ports
through alarm information.
Table 208 Enable log/trap output for ports of MSTP instance
Operation
Enter system view
Enable log/trap output for the
ports of a specified instance
Enable log/trap output for the
ports of all instances
# Enable log/trap output for the ports of instance 1.
<SW7750> system-view
[SW7750] stp instance 1 portlog
# Enable log/trap output for the ports of all instances.
<SW7750> system-view
[SW7750] stp portlog all
You can verify the above configurations by executing the display commands in
any view.
Execute the reset command in user view to clear MSTP statistics.
Table 209 Display and debug MSTP
Operation
Display spanning tree-related
information about the current switch
Display region configuration
Display information about the ports that
are shut down by STP protection
Display information about the ports that
are blocked by STP protection
Display information about the root port
of the instance where the switch reside
Clear MSTP-related statistics
Command
system-view
stp [ instance instance-id ]
portlog
stp portlog all
Command
display stp [ instance instance-id ] [ interface
interface-list | slot slot-number ] [ brief ]
display stp region-configuration
display stp portdown
display stp abnormalport
display stp root
reset stp [ interface interface-list ]
Description
-
Required
By default, log/trap output is
disabled for the ports of all
instances.
Required
By default, log/trap output is
disabled for the ports of all
instances.