3com 4210 PWR 9-Port 3CR17341-91-ME User Manual
Product codes
3CR17341-91-ME
154
C
HAPTER
14: MSTP C
ONFIGURATION
n
In a network containing switches with both GVRP and MSTP enabled, GVRP
packets are forwarded along the CIST. If you want to advertise packets of a specific
VLAN through GVRP, be sure to map the VLAN to the CIST when configuring the
MSTP VLAN mapping table (the CIST of a network is spanning tree instance 0).
packets are forwarded along the CIST. If you want to advertise packets of a specific
VLAN through GVRP, be sure to map the VLAN to the CIST when configuring the
MSTP VLAN mapping table (the CIST of a network is spanning tree instance 0).
Configuration
Prerequisites
The role (root, branch, or leaf) of each switch in each spanning tree instance is
determined.
determined.
Table 101 Configure a root bridge
Operation
Description
Related section
Enable MSTP
Required
To prevent network topology
jitter caused by other related
configurations, you are
recommended to enable
MSTP after other related
configurations are performed.
jitter caused by other related
configurations, you are
recommended to enable
MSTP after other related
configurations are performed.
Configure an MST region
Required
Specify the current switch as a
root bridge/secondary root
bridge
root bridge/secondary root
bridge
Required
Configure the bridge priority
of the current switch
of the current switch
Optional
The priority of a switch cannot
be changed after the switch is
specified as the root bridge or
a secondary root bridge.
be changed after the switch is
specified as the root bridge or
a secondary root bridge.
Configure the mode a port
recognizes and sends MSTP
packets
recognizes and sends MSTP
packets
Optional
Configure the MSTP
operation mode
operation mode
Optional
Configure the maximum hop
count of an MST region
count of an MST region
Optional
Configure the network
diameter of the switched
network
diameter of the switched
network
Optional
The default value is
recommended.
recommended.
Configure the MSTP
time-related parameters
time-related parameters
Optional
The default values are
recommended.
recommended.
Configure the timeout time
factor
factor
Optional
Configure the maximum
transmitting speed of the port
transmitting speed of the port
Optional
The default value is
recommended.
recommended.
Configure the current port as
an edge port
an edge port
Optional
Specify whether the link
connected to a port is a
point-to-point link
connected to a port is a
point-to-point link
Optional