Installation manual

Operation Manual - STP
Quidway S3000-EI Series Ethernet Switches Chapter 1
MSTP Region-configuration
Huawei Technologies Proprietary
1-15
designated switch.
stp [ instance instance-id ]
bridge-priority
Restore the default Bridge priority of the undo
When configuring the switch priority with the instance instance-id param
eter as 0, you
are configuring the CIST priority of the switch.
Caution:
In the process of spanning tree root election, of two or more switches with the lowest
Bridge priorities a smaller MAC address will b the root.
, the one has e elected as
B
1.2.5 Configure the Max Hops in an MST Region
eling from the spanning tree root, each
time when it is forwarded by a switch, the max hops is reduced by 1. The switch
iscards the configuration BPDU with 0 hops left. This makes it impossible for the
ch beyond the max hops to take part in the spanning tree calculation, thereby
limiting the scale of the MST region.
You can use the following command to configure the max hops in an MST region.
Table 1-7 Configure the max hops in an MST region
y default, the switch Bridge priority is 32768.
The scale of MST region is limited by the max hops in an MST region, which is
configured on the region root. As the BPDU trav
d
swit
Perform the following configuration in system view.
Operation Command
stp max-hops hop
Configure the max hops in an MST region.
Restore the default max hops in an MST region
undo stp max-hops
The more the hops in an MST region, the larger the scale of the region. Only the max
hops configured on the region root can limit the scale of MST region. Other switches in
the MST region also apply the configurations on the region root, even if they have been
configured with max hops.
By default, the max hops of an MST is 20.