Allied Telesis AT-S63 - Manual (Page 562)

Chapter 23: Multiple Spanning Tree Protocol
562 Section V: Spanning Tree Protocols
BPDU is deleted. The counter is reset to its original value if a BPDU
crosses a MSTP regional boundary.
6 - Configuration Name
The name of the MSTP region. The range is 0 (zero) to 32
alphanumeric characters in length. The name, which is case sensitive,
must be the same on all bridges in a region. Examples include Sales
Region and Production Region.
7 - Revision Level
The revision level of an MSTP region. The range is 0 (zero) to 255.
This is an arbitrary number that you assign to a region. The revision
level must be the same on all bridges in a region. Different regions can
have the same revision level without conflict.
8 - Bridge Identifier
The bridge identifier of the switch. The identifier consists of the
switch’s CIST priority value and MAC address, separated by a slash
(/). To change the switch’s priority value, refer to “Configuring the CIST
Priority” on page 563. The MAC address of the switch cannot be
changed.
9 - Root Identifier
The bridge identifier of the root bridge of the CIST spanning tree
domain. The identifier consists of the root switch’s bridge or CIST
priority value and MAC address, separated by a slash (/). If this MAC
address is the same as the current bridge’s MAC address, then the
switch is functioning as a root bridge. If the two MAC addresses are
different, then a different switch is functioning as the root bridge. This
parameter is only displayed with MSTP is enabled.
Note
Selection C, CIST menu, is described in “Configuring the CIST
Priority,” next.
Selection M, MSTI menu, is described in “Creating, Deleting, and
Modifying MSTI IDs” on page 567.
Selection V, VLAN-MSTI Association menu, is described in “Adding,
Removing, and Modifying VLAN Associations to MSTI IDs” on
page 570.
Selection P, MSTP Port Parameters, is described in “Configuring
MSTP Port Settings” on page 575.
Selection D, Reset MSTP to Defaults, is described in “Resetting
MSTP to the Defaults” on page 586.
4. After making changes, type R until you return to the Main Menu. Then
type S to select Save Configuration Changes.