The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2009
Filed:
Dec. 29, 2004
Ignatius Santoso, Thousand Oaks, CA (US);
Roberto Henrique Jacob Da Silva, Calabasas, CA (US);
Timothy Hicks, Newbury Park, CA (US);
Vincent Magret, Oak Park, CA (US);
Ignatius Santoso, Thousand Oaks, CA (US);
Roberto Henrique Jacob da Silva, Calabasas, CA (US);
Timothy Hicks, Newbury Park, CA (US);
Vincent Magret, Oak Park, CA (US);
Alcatel Lucent, Paris, FR;
Abstract
A stack switch for performing pass-through forwarding operations, assigning stack switch identifiers to a plurality of stack switches, temporarily disabling supervision messages exchanged by stack switches, and electing a primary master stack switch is disclosed. In the pass-through mode, the stack switch automatically forwards packets between stack ports independent of their destination address to maintain connectivity between adjacent stack switches while conventional bridging and routing operations are disabled. The sequential identifiers are also preferably assigned in accordance with the sequential position of the various stack switches to better reflect the topology of those switches. The switch is also preferably adapted to temporarily disable the transmission of supervision messages between stack switches to prevent re-assignment of network management functions when switch resources are low. The switch may execute a stack switch identifier numbering scheme based on the time the switch became operational.