RackSwitch G8000 Application Guide

PVRST configuration guidelines

This section provides important information about configuring Per VLAN Rapid Spanning Tree Groups:

„By default, STGs 2-128 are empty, and STG 1 contains all configured VLANs until indi- vidual VLANs are assigned to other STGs. The G8000 allows only one VLAN per STG, except for STG 1.

„If the ports are tagged, each port sends out a special BPDU containing the tagged informa- tion.

„When a tagged port belongs to more than one STG, the egress BPDUs are tagged to distin- guish the BPDUs of one STG from those of another STG.

Configuring PVRST

This configuration shows how to configure PVRST+ on the switch.

1.Set the Spanning-tree mode to PVRST+.

RS G8000 (config)# spanning-tree mode pvrst

2.Configure port membership for VLAN 1 and VLAN 2. Define the STGs for each VLAN.

By default, port 1 is a member of VLAN 1, and VLAN 1 is assigned to STG 1. Add port 2 to VLAN 2, and assign VLAN 2 to STG 2.

RS G8000 (config)# vlan

2

RS G8000

(config-vlan)#

enable

RS G8000

(config-vlan)#

member 2

RS

G8000

(config-vlan)#

stg 2

RS

G8000

(config-vlan)#

exit

BMD00041, November 2008

Chapter 5: Spanning Tree „ 85

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Blade ICE G8000 manual Pvrst configuration guidelines, Configuring Pvrst, Set the Spanning-tree mode to PVRST+