Configuration Guide Manual
Brocade TurboIron 24X Series Configuration Guide 589
53-1003053-01
802.1s Multiple Spanning Tree Protocol
Displaying MSTP information for a specified instance
The following example displays MSTP information specified for an MSTP instance.
Refer to Table 94 for details about the display parameters.
Displaying MSTP information for CIST instance 0
Instance 0 is the Common and Internal Spanning Tree Instance (CIST). When you display
information for this instance there are some differences with displaying other instances. The
following example displays MSTP information for CIST Instance 0.
To display details about the MSTP configuration, enter the following command.
State The port current spanning tree state. A port can have one of the
following states:
• Forwarding
• Discarding
• Learning
• Disabled
Designated Cost Port path cost to the root bridge.
Max Hop cnt The maximum hop count configured for this instance.
Root Hop cnt Hop count from the root bridge.
TABLE 94 Output from Show MSTP (Continued)
This field... Displays...
TurboIron#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
800100000080af01 20 800100000080af01 0 800100000080af01 Root 20
Port Pri PortPath Role State Designa- Designated
Num Cost ted cost bridge
1 128 2000 MASTER FORWARDING 0 800100000080af01
TurboIron#show mstp 0
MSTP Instance 0 (CIST) - VLANs: 1
----------------------------------------------------------------------------
Bridge Bridge Bridge Bridge Bridge Root Root Root Root
Identifier MaxAge Hello FwdDly Hop MaxAge Hello FwdDly Hop
hex sec sec sec cnt sec sec sec cnt
800000000080af01 20 2 15 20 20 2 15 19
Root ExtPath RegionalRoot IntPath Designated Root
Bridge Cost Bridge Cost Bridge Port
hex hex hex
8000000000bb9876 2000 800000000080af01 0 8000000000bb9876 1
Port Pri PortPath P2P Edge Role State Designa- Designated
Num Cost Mac Port ted cost bridge
1 128 2000 T F ROOT FORWARDING 0 8000000000bb9876