Configuring PVST+ support

PVST+ support is automatically enabled when the port receives a PVST BPDU. You can manually enable the support at any time or disable the support if desired.

If you want a tagged port to also support IEEE 802.1Q BPDUs, you need to enable the dual-mode feature on the port. The dual-mode feature is disabled by default and must be enabled manually.

A port that is in PVST+ compatibility mode due to auto-detection reverts to the default multiple spanning tree mode when one of the following events occurs:

  • The link is disconnected or broken
  • The link is administratively disabled
  • The link is disabled by interaction with the link-keepalive protocol

This allows a port that was originally interoperating with PVST+ to revert to multiple spanning tree mode when connected to a Ruckus device.

Parent topic: PVST/PVST+ compatibility