IBM 12.1(22)EA6 User Manual
10-20
Cisco Systems Intelligent Gigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide
24R9746
Chapter 10 Configuring MSTP
Configuring MSTP Features
Configuring the Maximum-Aging Time
Beginning in privileged EXEC mode, follow these steps to configure the maximum-aging time for all
MST instances. This procedure is optional.
MST instances. This procedure is optional.
To return the switch to its default setting, use the no spanning-tree mst max-age global configuration
command.
command.
Configuring the Maximum-Hop Count
Beginning in privileged EXEC mode, follow these steps to configure the maximum-hop count for all
MST instances. This procedure is optional.
MST instances. This procedure is optional.
To return the switch to its default setting, use the no spanning-tree mst max-hops global configuration
command.
command.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
spanning-tree mst max-age seconds
Configure the maximum-aging time for all MST instances. The
maximum-aging time is the number of seconds a switch waits
without receiving spanning-tree configuration messages before
attempting a reconfiguration.
maximum-aging time is the number of seconds a switch waits
without receiving spanning-tree configuration messages before
attempting a reconfiguration.
For seconds, the range is 6 to 40; the default is 20.
Step 3
end
Return to privileged EXEC mode.
Step 4
show spanning-tree mst
Verify your entries.
Step 5
copy running-config startup-config
(Optional) Save your entries in the configuration file.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
spanning-tree mst max-hops hop-count
Specify the number of hops in a region before the BPDU is
discarded, and the information held for a port is aged.
discarded, and the information held for a port is aged.
For hop-count, the range is 1 to ; the default is 20.
Step 3
end
Return to privileged EXEC mode.
Step 4
show spanning-tree mst
Verify your entries.
Step 5
copy running-config startup-config
(Optional) Save your entries in the configuration file.