User's Manual

Table Of Contents
234
Users Manual of CS-6306R
Command Purpose
spanning-tree mstpinstance-idroot secondary
[ diameternet-diameter [ hello-timeseconds ] ]
Sets the switch to the secondary root in the designated
spanning tree instance.
instance-id represents the number of the spanning tree
instance, ranging from 0 to 15.
net-diameter represents the network diameter, which is an
optional parameter. It is effective when instance-id is 0. It
ranges from 2 to 7.
seconds represents the unit of the hello time, ranging from
1 to 10.
no spanning-tree mstpinstance-idroot
Cancels the root configuration of the switch in the spanning
tree.
instance-id means the number of the spanning tree
instance, ranging from 0 to 15.
Run the following command to check the MSTP message:
Command Purpose
show spanning-tree mstp
[ instanceinstance-id ]
Checks the message about the MST instance.
19.2.3.6 Configuring Bridge Priority
In some cases, you can directly set the switch to the network root by configuring the bridge priority. It means
that you can set the switch to the network root without running the subcommand root. The priority value of the
switch is independent in each spanning tree instance. Therefore, the priority of the switch can be set
independently.
Run the following command to configure the priority of the spanning tree:
Command Purpose
spanning-tree mstpinstance-idpriorityvalue
Sets the priority of the switch.
instance-id represents the number of the spanning tree
instance, ranging from 0 to 15.
value represents the priority of the bridge. It can be one of the
following values:
0, 4096, 8192, 12288, 16384, 20480, 24576, 28672,
32768, 36864, 40960, 45056, 49152, 53248, 57344, 61440
no spanning-tree mstpinstance-idpriority
Resumes the bridge priority of the switch to the default value.
instance-id means the number of the spanning tree instance,
ranging from 0 to 15.