3com WX3000 User Manual

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In a network containing devices 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).  
 
Configuration Prerequisites 
The role (root, branch, or leaf) of each device in each spanning tree instance is determined. 
Configuring an MST Region 
Configuration procedure 
Follow these steps to configure an MST region: 
To do… 
Use the command… 
Remarks 
Enter system view 
system-view 
— 
Enter MST region view 
stp region-configuration 
— 
Configure the name of the MST 
region 
region-name name
 
Required 
The default MST region name 
of a device is its MAC address.
instance
 instance-id vlan 
vlan-list 
Configure the VLAN mapping 
table for the MST region 
vlan-mapping modulo
 modulo
Required 
Both commands can be used to 
configure VLAN mapping 
tables. 
By default, all VLANs in an 
MST region are mapped to 
spanning tree instance 0. 
Configure the MSTP revision 
level for the MST region 
revision-level
 level 
Required 
The default revision level of an 
MST region is level 0. 
Activate the configuration of the 
MST region manually 
active region-configuration 
Required 
Display the configuration of the 
current MST region 
check region-configuration 
Optional 
Display the currently valid 
configuration of the MST region 
display stp 
region-configuration 
You can execute this command 
in any view. 
 
 
NTDP packets sent by devices in a cluster can only be transmitted within the instance where the 
management VLAN of the cluster resides.