Configure Mstp Region - Extreme Networks ExtremeWare XOS Command Reference Manual

ExtremeWare XOS 11.5 supports only the Summit X450 family of switches and the BlackDiamond 8800 series switch.
STP Commands

configure mstp region

configure mstp region <regionName>
Description
Configures the name of an MSTP region on the switch.
Syntax Description
regionName
Default
By default, the switch uses the MAC address of the switch to generate an MSTP region.
Before you configure the MSTP region, it also has the following additional defaults:
MSTP format Identifier—0
●
MSTP Revision Level—3
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Usage Guidelines
The maximum length for a name is 32 characters. Names can contain alphanumeric characters and
underscores ( _ ) but cannot be any reserved keywords, for example, mstp. Names must start with an
alphabetical character, for example, a, Z.
By default, the switch uses the unique MAC address of the switch to generate an MSTP region. Since
each MAC address is unique, every switch is in its own region by default.
For multiple switches to be part of an MSTP region, you must configure each switch in the region with
the same MSTP configuration attributes, also known as MSTP region identifiers. These identifiers
consist of the following:
Region Name—The name of the MSTP region.
●
Format Selector—The number used to identify the format of MSTP BPDUs. The default is 0.
●
Revision Level—This identifier is reserved for future use; however, the switch uses and displays a
●
default of 3.
You can configure only one MSTP region on the switch at any given time.
The switches inside a region exchange BPDUs that contain information for MSTIs. The switches
connected outside of the region exchange CIST information. By having devices look at the region
identifiers, MSTP discovers the logical boundary of a region.
If you have an active MSTP region, Extreme Networks recommends that you disable all active STPDs in
the region before renaming the region on all of the participating switches.
Viewing MSTP Information. To view the MSTP configuration on the switch, use the
command. Output from this command contains global MSTP settings, including the name of the MSTP
1172
Specifies a user-defined name for the MSTP region. May be up to 32
characters.
show stpd
ExtremeWare XOS 11.5 Command Reference Guide