3com 5500-ei pwr Instruccion De Instalación

 

1-47 

Implement MSTP in the network shown in 

 to enable packets of different VLANs to be 

forwarded along different MSTIs. The detailed configurations are as follows: 

z

 

All switches in the network belong to the same MST region. 

z

 

Packets of VLAN 10, VLAN 30, VLAN 40, and VLAN 20 are forwarded along MSTI 1, MSTI 3, MSTI 
4, and MSTI 0 respectively. 

In this network, Switch A and Switch B operate on the convergence layer; Switch C and Switch D 
operate on the access layer. VLAN 10 and VLAN 30 are limited in the convergence layer and VLAN 40 
is limited in the access layer. Switch A and Switch B are configured as the root bridges of MSTI 1 and 
MSTI 3 respectively. Switch C is configured as the root bridge of MSTI 4. 

Network diagram for MSTP configuration 

 

 

The word “permit” shown in 

 means the corresponding link permits packets of specific 

VLANs. 

 

1)  Configure Switch A 

# Enter MST region view. 

<Sysname> system-view 

[Sysname] stp region-configuration 

# Configure the region name, VLAN-to-instance mapping table, and revision level for the MST region. 

[Sysname-mst-region] region-name example 

[Sysname-mst-region] instance 1 vlan 10 

[Sysname-mst-region] instance 3 vlan 30 

[Sysname-mst-region] instance 4 vlan 40 

[Sysname-mst-region] revision-level 0 

# Activate the settings of the MST region manually. 

[Sysname-mst-region] active region-configuration