Configuring Rapid-Pvst+ On The Switch - Cisco WS-C6506 Software Manual

Chapter 7 Configuring Spanning Tree

Configuring Rapid-PVST+ on the Switch

Rapid-PVST+ is the default spanning tree protocol that is used on all Ethernet, Fast Ethernet, and
Gigabit Ethernet port-based VLANs on Catalyst 6500 series switches. To configure Rapid-PVST+, you
need to also configure PVST+ on your switch. You can configure PVST+ either before or after you
enable Rapid-PVST+.
To configure Rapid-PVST+, perform this task in privileged mode:
Task
Step 1 Enable Rapid-PVST+.
Step 2 Set the link-type to point-to-point mode for
the port.
Step 3
Detect any legacy bridges on the port.
Step 4
Verify the Rapid-PVST+ configuration.
This example shows how to configure Rapid-PVST+:
Console> (enable) set spantree mode rapid-pvst+
Spantree mode set to RAPID-PVST+.
Console> (enable) set spantree link-type 3/1 point-to-point
Link type set to point-to-point on port 3/1.
Console> (enable) clear spantree detected-protocols 3/1
Spanning tree protocol detection forced on port 3/1
Console> (enable)
This example shows how to verify the Rapid-PVST+ configuration for VLAN 1. Notice that the first line
in the output displays the spanning-tree mode.
Console> show spantree 1
Spanning tree mode
Spanning tree type
Spanning tree enabled.
.
.
.
Port
------------
6/1
Console> (enable)
This example shows how to verify the link type, edge port, and guard type for port 3/6:
Console> show spantree 3/6
Port 3/6
Edge Port:
Port Guard:
Link Type:
Port
------
3/6
3/6
3/6
3/6
3/6
3/6
OL-8978-04
RAPID-PVST+
ieee
State Role
----------- -------
forwarding ROOT
No, (Configured) Default
Default
P2P(Configured) Auto
VLAN State Role
----- ---------- ------
1 listening DESG
2 listening DESG
3 listening DESG
4 listening DESG
5 listening DESG
6 listening DESG
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
Command
set spantree mode rapid-pvst+
set spantree link-type mod/port point-to-point
clear spantree detected-protocols mod/port
show spantree vlan
Cost Prio Type
----- ---- -----------------
20000 16 Shared, PEER(STP)
Cost Prio Type
-------- ---- -----
20000 32 P2P
20000 32 P2P
20000 32 P2P
20000 32 P2P
20000 32 P2P
20000 32 P2P
Configuring Rapid-PVST+ on the Switch
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