Multiple Instance Spanning-Tree Operation

Configuring MSTP

MSTP Configuration Overview

This section describes the general steps for configuring MSTP via the CLI, assuming that you have already determined the VLANs you want MSTP to use (see “Planning an MSTP Application” on page 4-17). A description of each MSTP command syntax is provided in the following sections.

1.Configure MSTP global parameters. This step involves configuring the following:

Required parameters for MST region identity: Region Name: spanning-tree config-name

Region Revision Number: spanning-tree config-revision

Optional MSTP parameter changes for region settings:

ProCurve recommends that you leave these parameters at their default settings for most networks. See the “Caution” on page 4-9.

The maximum number of hops before the MSTP BPDU is dis- carded: spanning-treemax-hops(default: 20)

Force-Version operation: spanning-tree force-versionForward Delay: spanning-tree forward-delay

Hello Time (if it is the root device): spanning-treehello-time

Maximum age to allow for STP packets before discarding: spanning-treemaximum-age

Device spanning-tree priority. Specifies the priority value used along with the switch MAC address to determine which device is root. The lower a priority value, the higher the priority.

spanning-tree priority2.Configure per port parameters.

ProCurve recommends that you use the default settings for these param- eters and apply changes on a per-port basis only where a non-default setting is clearly indicated by the circumstances of individual links. Other features you might consider include BPDU Filtering or BPDU Protec- tion—these provide additional per-port control over spanning-tree oper- ations and security on the switch.

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