How To Configure Spanning-Tree Features; Changing The Spanning-Tree Mode - Cisco Catalyst 2960-XR Configuration Manual

How to Configure Spanning-Tree Features

Feature
Spanning-tree port cost (configurable on a per-interface basis)
Spanning-tree VLAN port priority (configurable on a per-VLAN
basis)
Spanning-tree VLAN port cost (configurable on a per-VLAN basis)
Spanning-tree timers
Related Topics
Disabling Spanning Tree, on page 28
Supported Spanning-Tree Instances, on page 23
How to Configure Spanning-Tree Features

Changing the Spanning-Tree Mode

The switch supports three spanning-tree modes: per-VLAN spanning tree plus (PVST+), Rapid PVST+, or
multiple spanning tree protocol (MSTP). By default, the switch runs the PVST+ protocol.
If you want to enable a mode that is different from the default mode, this procedure is required.
Beginning in privileged EXEC mode, follow these steps to change the spanning-tree mode:
SUMMARY STEPS
1. configure terminal
2. spanning-tree mode {pvst | mst | rapid-pvst}
3. interface interface-id
4. spanning-tree link-type point-to-point
5. end
6. clear spanning-tree detected-protocols
Catalyst 2960-XR Switch Layer 2 Configuration Guide, Cisco IOS Release 15.0(2)EX1
26
Configuring Spanning Tree Protocol
Default Setting
1000 Mb/s: 4
100 Mb/s: 19
10 Mb/s: 100
128
1000 Mb/s: 4
100 Mb/s: 19
10 Mb/s: 100
Hello time: 2 seconds
Forward-delay time: 15 seconds
Maximum-aging time: 20 seconds
Transmit hold count: 6 BPDUs
OL-29424-01