Knowledge Base

RSTP Interoperability with Cisco PVST+


Article Summary: This article provides information on PowerConnect RSTP interoperability
with Cisco PVST+.

Problem:


PowerConnect spanning-tree mode RSTP is not functioning properly with Cisco switches using spanning-tree mode PVST+.

Solution:


On 802.1Q trunk links connecting PowerConnect switches to Cisco switches VLAN 1 must be added on both sides regardless of the native VLAN configured.

Additional Information:
Cisco switches running PVST+ multicast STP frames on a Cisco STP MC MAC address with the exception of VLAN 1. Only VLAN 1 is sympathetic to the requirements of the IEEE STP MC MAC address.

 


Quick Tips content is self-published by the Dell Support Professionals who resolve issues daily. In order to achieve a speedy publication, Quick Tips may represent only partial solutions or work-arounds that are still in development or pending further proof of successfully resolving an issue. As such Quick Tips have not been reviewed, validated or approved by Dell and should be used with appropriate caution. Dell shall not be liable for any loss, including but not limited to loss of data, loss of profit or loss of revenue, which customers may incur by following any procedure or advice set out in the Quick Tips.

Article ID: SLN290375

Last Date Modified: 03/29/2014 12:00 AM


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