3com S7906E Guide De Référence

 

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You cannot map the same VLAN to different MSTIs. If you map a VLAN that has been mapped to an 

MSTI to a new MSTI, the old mapping will be automatically removed.  

 

By using the vlan-mapping modulo command, you can quickly specify a VLAN for each MSTI. This 

command maps each VLAN to the MSTI whose ID is (VLAN ID–1) %modulo + 1, where (VLAN ID-1) 

%modulo is the modulo operation for (VLAN ID–1). If the modulo value is 15, for example, then VLAN 1 

will be mapped to MSTI 1, VLAN 2 to MSTI 2, VLAN 15 to MSTI 15, VLAN 16 to MSTI 1, and so on.  

 

Related commands: region-name, 

revision-level, 

check region-configuration, 

region-configuration.  

# Map VLANs to MSTIs as per modulo 8.  

<Sysname> system-view 

[Sysname] stp region-configuration 

[Sysname-mst-region] vlan-mapping modulo 8