Allied Telesis AT-S63 - Manual (Page 520)

Chapter 22: MSTP
520 Section IV: Spanning Tree Protocols
Configuring the CIST Priority
This procedure explains how to adjust the bridge’s CIST priority.
To change the CIST priority, perform the following procedure:
1. From the Main Menu, type 3 to select Spanning Tree Configuration.
The Spanning Tree Configuration menu is shown in Figure 169 on
page 485.
2. From the Spanning Tree Configuration menu, type 3 to select
Configure Active Protocol.
The MSTP menu is shown in Figure 186 on page 517.
3. From the MSTP menu, type C to select CIST menu.
The CIST menu is shown in Figure 187.
Figure 187. CIST Menu
The CIST Priority field in the menu displays the current value for this
MSTP parameter. This number is used in determining the root bridge
of the network spanning tree. This number is analogous to the RSTP
bridge priority value. The bridge in the network with the lowest priority
number is selected as the root bridge. If two or more bridges have the
same bridge or CIST priority values, the bridge with the numerically
lowest MAC address becomes the root bridge.
The Associated VLANs field displays the VIDs of the VLANs that are
currently associated with CIST and have not been assigned to a MSTI.
4. From the CIST menu, type 1 to select Modify CIST Priority.
The following prompt is displayed:
Allied Telesyn Ethernet Switch AT-94xx - AT-S63
Marketing
User: Manager 11:20:02 02-Mar-2005
CIST Menu
CIST Priority ............. 32768
Associated VLANs .......... 1,2,4,11
1 - Modify CIST Priority
R - Return to Previous Menu
Enter your selection?