inS_cnge8MS_reV–
09/17/12 Page 42
INSTALLATION AND OPERATION MANUAL
CNGE8MS
Tech SupporT: 1.888.678.9427
Label
Description
MSTP Enable
You must enable or disable MSTP function before configuring the
related parameters.
Force Version
The Force Version parameter can be used to force a VLAN Bridge that
supports RSTP to operate in an STP-compatible manner.
Configuration
Name
The same MST Region must have the same MST configuration name.
Revision Level
(0-65535)
The same MST Region must have the same revision level.
Priority (0-61440) A value used to identify the root bridge. The bridge with the lowest
value has the highest priority and is selected as the root. If the value
changes, You must reboot the switch. The value must be multiple of
4096 according to the protocol standard rule.
Max Age Time(6-
40)
The number of seconds a bridge waits without receiving Spanning-
tree Protocol configuration messages before attempting a
reconfiguration. Enter a value between 6 through 40.
Hello Time (1-10) The setting follow the rule below to configure the MAX Age, Hello
Time, and Forward Delay Time at controlled switch sends out the
BPDU packet to check RSTP current status. Enter a value between 1
through 10.
2 x (Forward Delay Time value –1) ≥ Max Age value ≥ 2 x (Hello Time
value +1)
Forwarding Delay
Time (4-30)
The number of seconds a port waits before changing from its Rapid
Spanning-Tree Protocol learning and listening states to the forwarding
state. Enter a value between 4 through 30.
Max Hops (1-40) This parameter is additional to those specified for RSTP. A single value
applies to all Spanning Trees within an MST Region (the CIST and all
MSTIs) for which the Bridge is the Regional Root.
Apply
Select
Apply
to set the configurations.
