Full mesh optimization for spanning tree protocol

Details Full mesh optimization for spanning tree protocol Full mesh optimization for spanning tree protocol

2011-01-18

2011-01-18

Shah, Chirag G (Department: 2477)

Multiplex communications

Network configuration determination

C370S256000, C370S400000

Reexamination Certificate

active

07872989

ABSTRACT:
An optimized spanning tree protocol (OSTP) minimizes latency and provides high throughput in a full-mesh portion of a network, and is compatible with external networks where a standard spanning tree protocol is used. The OSTP enables traffic traversing the full-mesh portion to take a shortest path from source to destination through use of full-mesh connectivity. In some embodiments, a cluster includes a plurality of servers connected in a full mesh, and the OSTP is used on internal ports of the servers. In some embodiments, the OSTP is configured on a per-VLAN basis. In some embodiments, the servers exchange special messages enabling determination of full-mesh connectivity. In further embodiments, sending of the special messages is suppressed on certain port types, such as external ports. In some embodiments, determination of the full-mesh connectivity disables use of a standard spanning tree protocol and/or enables use of OSTP on the full-mesh portion.

REFERENCES:
patent: 2004/0153708 (2004-08-01), Joshi et al.
patent: 2004/0190454 (2004-09-01), Higasiyama
patent: 2008/0239957 (2008-10-01), Tokura et al.

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