Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) User Manual
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Multi-Service IronWare Switching Configuration Guide
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802.1s Multiple Spanning Tree Protocol
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The following example displays MSTP information for a specified MSTP instance.
The following example displays blocked ports only, for a specified MSTP instance
.
for details about the display parameters.
Syntax: show mstp [blocked] [mstp-id]
The blocked parameter displays information for blocked ports only. When the blocked parameter is
not specified, information is displayed for all ports.
The mstp-id variable specifies the MSTP instance for which you want to display information.
TABLE 57
Output from show MSTP
This field...
Displays...
MSTP Instance
The ID of the MSTP instance whose statistics are being displayed. For the CIST,
this number is 0.
VLANs:
The number of VLANs that are included in this instance of MSTP. For the CIST
this number will always be 1.
Bridge Identifier
The MAC address of the bridge.
Bridge MaxAge sec
Displays configured Max Age.
Bridge Hello sec
Displays configured Hello variable.
Bridge FwdDly sec
Displays configured FwdDly variable.
Bridge Hop cnt
Displays configured Max Hop count variable.
Root MaxAge sec
Max Age configured on the root bridge.
Root Hello sec
Hello interval configured on the root bridge.
Root FwdDly sec
FwdDly interval configured on the root bridge.
Brocade(config)# show mstp 1
MSTP Instance 1 - VLANs: 2
----------------------------------------------------------------------------
Bridge Max RegionalRoot IntPath Designated Root Root
Identifier Hop Bridge Cost Bridge Port Hop
hex cnt hex hex cnt
8001000cdb80af01 20 8001000cdb80af01 0 8001000cdb80af01 Root 20
Port Pri PortPath Role State Designa- Designated
Num Cost ted cost bridge
3/1 128 2000 MASTER FORWARDING 0 8001000cdb80af01
Brocade# show mstp blocked 1
MSTP Instance 1 - VLANs: 10
----------------------------------------------------------------------------
Bridge Max RegionalRoot IntPath Designated Root Root
Identifier Hop Bridge Cost Bridge Port Hop
hex cnt hex hex cnt
80010024389e2d00 20 80010024388f6b00 2000 80010024388f6b00 3/1 19
Port Pri PortPath P2P Edge Role State Designa- Designated
Num Cost Mac Port ted cost bridge
3/2 128 2000 F F ALTERNATE DISCARDING 0 80010024388f6b00
3/3 128 2000 F F ALTERNATE DISCARDING 0 80010024388f6b00
3/4 128 2000 F F ALTERNATE DISCARDING 0 80010024388f6b00