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:
Sep. 30, 2014
Filed:
Oct. 19, 2012
Maitreya Mukhopadhyay, Allen, TX (US);
Wenao HU, San Jose, CA (US);
Hossein Sahabi, Pleasanton, CA (US);
Badrinath Natarajan, Dallas, TX (US);
Maitreya Mukhopadhyay, Allen, TX (US);
Wenao Hu, San Jose, CA (US);
Hossein Sahabi, Pleasanton, CA (US);
Badrinath Natarajan, Dallas, TX (US);
Fujitsu Limited, Kawasaki-shi, JP;
Abstract
A network element includes a first customer edge port (CEP) coupled to a customer network, a first and a second flood domain. The first and second flood domain each include one or more provider network ports associated with a provider network. The first CEP is configured to peer spanning tree protocol (STP) data units across a network, and receive and transmit a data unit to a first STP processing instance associated with the first CEP. The first STP processing instance is configured to determine whether the data unit is associated with the first or second flood domain, and forward the data unit to the determined flood domain. The network element includes a second CEP coupled to the customer network and the first flood domain. The second CEP is configured to tunnel STP data units across the provider network, receive and forward a second data unit to the first flood domain.