DGS-6604
m
spanning-tree mst (forward | max-age | max-hops)
CLI Reference Guide
868
spanning-tree mst (forward | max-age | max-hops)
Use this command to configure the Protocol Timers used by the STP module in
MSTP mode.
spanning-tree mst {forward-time
SECONDS
| max-age
SECONDS
| max-hops
HOP-COUNT
}
Default
forward-time
:15 seconds
max-age
: 20 seconds
max-hops
: 20 hops
Command Mode
Global configuration
Usage Guideline
There are some constraints on the relationship of the three timers. Please refer
to the following formulas:
2 × (Bridge_Forward_Delay - 1.0 seconds) >= Bridge_Max_Age
Bridge_Max_Age >= 2 × (Bridge_Hell 1.0 seconds)
Example
This example shows how to configure bridge timers for MSTP version.
Syntax Description
forward-time
SECONDS
The maximum delay time in seconds for one BPDU to be transmitted by a bridge
and received from another bridge. The range is 4 to 30 seconds.
max-age
SECONDS
Used to determine if a BPDU is valid. The range is 6 to 40 seconds.
max-hops
HOP
-
COUNT
Used to restrict the forwarded times of one BPDU. The range is 1 to 20 hops.
Switch# configure terminal
Switch(config)#spanning-tree mst forward-time 14
Switch(config)#spanning-tree mst max-age 19
Switch(config)#spanning-tree mst max-hops 19
Switch(config)# end
