Rapid Spanning Tree Protocol/

Multiple Spanning Tree Protocol configuration

Command: /cfg/l2/mrst

[Multiple Spanning Tree Menu]

cist

- Common and Internal Spanning Tree menu

name

- Set MST region name

rev

- Set revision level of this MST region

maxhop

- Set Maximum Hop Count for MST (4 - 60)

mode

- Spanning Tree Mode

on

- Globally turns RSTP/MSTP ON

off

- Globally turns RSTP/MSTP OFF

cur

- Display current MST parameters

The switch supports the IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) and IEEE 802.1s Multiple Spanning Tree Protocol (MSTP). MSTP allows you to map many VLANs to a small number of spanning tree groups, each with its own topology.

MSTP supports up to 32 Spanning Tree Groups on the switch (STG 32 is reserved for switch management). MRST is turned off by default.

NOTE: When Multiple Spanning Tree is turned on, VLAN 1 is moved from Spanning Tree Group 1 to the Common Internal Spanning Tree (CIST). When Multiple Spanning Tree is turned off, VLAN 1 is moved back to Spanning Tree Group 1.

The following table describes the Multiple Spanning Tree Configuration Menu options.

Table 108 Multiple Spanning Tree Configuration Menu options

Command

Description

 

 

cist

Displays the Common Internal Spanning Tree (CIST) Menu.

 

 

name <1-32

Configures a name for the MSTP region. All devices within a MSTP region must have

characters>

the same region name.

 

 

 

rev <0-65535>

Configures the revision level for the MSTP region. The revision level is used as a

 

numerical identifier for the region. All devices within a MSTP region must have the

 

same revision level number. The default value is 1.

 

 

maxhop <4-60>

Configures the maximum number of bridge hops a packet may to traverse before it is

 

dropped. The range is from 4 to 60 hops. The default value is 20.

rstpmstppvrst

Selects the spanning-tree mode, as follows:

 

Multiple Spanning Tree mode (mst )

 

Rapid Spanning Tree mode (rstp)

 

Per-VLAN Rapid Spanning Tree (pvrst)

 

The default mode is RSTP.

 

 

on

Globally turn RSTP/MSTP ON.

 

When RSTP is turned on, the configuration parameters for STP group 1 apply to RSTP.

 

 

off

Globally turn RSTP/MSTP OFF.

 

 

cur

Displays the current RSTP/MSTP configuration.

 

 

Configuration Menu 140

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Image 140
HP BMD00022 manual Command /cfg/l2/mrst, Rev, Rstpmstppvrst