Cisco WS-C6506 Software Manual page 178

Configuring MISTP-PVST+ or MISTP on the Switch
If you are working from a Telnet connection to your switch, the first time that you enable MISTP-PVST+
Caution
or MISTP mode, you must do so from the switch console; do not use a Telnet connection through the
data port or you will lose your connection to the switch. After you map a VLAN to an MISTP instance,
you can Telnet to the switch.
To change from PVST+ to MISTP-PVST+ or MISTP, perform this task in privileged mode:
Task
Set a spanning-tree mode.
This example shows how to set a switch to MISTP-PVST+ mode:
Console> (enable) set spantree mode mistp-pvst+
PVST+ database cleaned up.
Spantree mode set to MISTP-PVST+.
Warning!! There are no VLANs mapped to any MISTP instance.
Console> (enable)
You can display VLAN-to-MISTP instance mapping information that is propagated from the root switch
at runtime. This display is available only in the MISTP or MISTP-PVST+ mode. In the PVST+ mode,
use the optional keyword config to display the list of mappings that is configured on the local switch.
MAC addresses are not displayed when you specify the config keyword.
Note
To display spanning-tree mapping, perform this task in privileged mode:
Task
Step 1 Set the spanning-tree mode to MISTP.
Step 2 Show the spanning tree mapping.
This example shows how to display the spanning-tree VLAN instance mapping in MISTP mode:
MISTP/MISTP-PVST+
Console> (enable) set spantree mode mistp
PVST+ database cleaned up.
Spantree mode set to MISTP.
Console> (enable) show spantree mapping
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Chapter 7
Command
set spantree mode {mistp | pvst+ | mistp-pvst+}
Command
set spantree mode mistp
show spantree mapping [config]
Configuring Spanning Tree
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