Pvst/Pvst+ Compatibility - Foundry Networks Switch and Router Installation And Configuration Manual

USING THE WEB MANAGEMENT INTERFACE
1. Log on to the device using a valid user name and password for read-write access. The System configuration
dialog is displayed.
2. Click on the Single checkbox next to Spanning Tree to place a checkmark in the box, as shown in the
following example.
3. Click Apply to apply the change to the device's running-config.
4. Select the Save link at the bottom of the panel. Select Yes when prompted to save the configuration change
to the startup-config file on the device's flash memory.

PVST/PVST+ Compatibility

Foundry devices that are configured to support a separate spanning tree in each port-based VLAN can
interoperate with Cisco devices that are running Per VLAN Spanning Tree (PVST) or PVST+, Cisco proprietary
STP implementations that support separate spanning trees in each port-based VLAN.
A Foundry device configured to run a separate spanning tree in each port-based VLAN automatically enables
PVST/PVST+ support on a port if that port receives an STP BPDU with PVST/PVST+ format. You also can
enable PVST/PVST+ support statically as well as display PVST/PVST+ information for each port.
The information in this section is for reference. If you are running PVST/PVST+ on the Cisco devices and the
default support for separate spanning trees in each VLAN on the Foundry devices, then no configuration is
necessary for the devices to share spanning tree information.
NOTE: If you plan to use the PVST/PVST+ support, do not use VLAN 1. PVST+ uses VLAN 1 as a single STP
broadcast domain and thus uses a different BPDU format than for other VLANs.
December 2000
Configuring Spanning Tree Protocol (STP) and IronSpan
12 - 23