Inventors:
Norman W. Finn - Livermore CA, US
Munish Mehta - Freemont CA, US
Yibin Yang - San Jose CA, US
Chia Alex Tsai - Cupertino CA, US
Assignee:
CISCO TECHNOLOGY, INC. - San Jose CA
International Classification:
H04L 12/44
Abstract:
In one embodiment, a first number of multiple spanning tree instances (MSTIs) are defined within a network. A second number of network segments associated with segmentation identifier (IDs) are also configured, where the first number of MSTIs is less than the second number of segmentation IDs. Segmentation ID to MSTI mappings are maintained that map each defined segmentation ID of the second number of network segments to one of the first number of MSTIs. A segmentation mapping digest is computed of the segmentation ID to MSTI mappings. Multiple spanning tree (MST) bridge protocol data units (BPDUs) are broadcast that include the digest of the segmentation ID to MSTI mappings.
