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Associating vlans to msti ids – Allied Telesis AT-S62 User Manual

Page 502

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Chapter 24: Multiple Spanning Tree Protocol

Section IV: Spanning Tree Protocols

502

Associating VLANs to MSTI IDs

When you create a new MSTI, you are given the opportunity to associate
VLANs to it. But once a MSTI is created, there might come a time when
you want to add more VLANs, or perhaps remove VLANs from it. This
procedure explains how to associate VLANs on the switch to an existing
MSTI and also how to remove VLANs. Before performing this procedure,
note the following:

❑ You must create an MSTI before you can assign VLANs to it. To

create a MSTI ID, refer to Creating, Deleting, and Modifying MSTIs
on page 499.

❑ You can assign a VLAN to only one MSTI. By default, a VLAN, when

created, is associated with the CIST instance, which has a MSTI ID
of 0.

❑ An MSTI can contain any number of VLANs.

❑ You can also associate VLANs to an MSTI by performing the

procedure Modifying an MSTI on page 501.

Note

You cannot configure MSTP parameters until you have selected the
protocol as the active spanning tree protocol on the switch. For
instructions, refer to Enabling or Disabling a Spanning Tree Protocol
on page 466.

This procedure starts from the MSTP Menu. If you do not know how to
access the menu, perform steps 1 and 2 in Configuring MSTP Bridge
Settings on page 494.

To add or remove a VLAN from an MSTI, do the following:

1. From the MSTP Menu, type V to select VLAN-MSTI Association Menu.