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:
Apr. 14, 2009
Filed:
Jun. 04, 2003
Prashanth Ishwar, Santa Clara, CA (US);
Ajay Gaonkar, Sunnyvale, CA (US);
Apurva Mehta, Cupertino, CA (US);
Rajagopalan Subbiah, San Jose, CA (US);
Prashanth Ishwar, Santa Clara, CA (US);
Ajay Gaonkar, Sunnyvale, CA (US);
Apurva Mehta, Cupertino, CA (US);
Rajagopalan Subbiah, San Jose, CA (US);
Alcatel-Lucent USA Inc., Murray Hill, NJ (US);
Abstract
A technique for implementing VLANs across a service provider network involves establishing logical ports that have bindings to transport tunnels. The logical ports are then treated the same as physical ports in defining broadcast domains at particular service provider edge devices. Logical ports can be established for Layer 2 transport tunnels that use stacked VLAN tunneling and MPLS tunneling. Establishing a logical port that uses stacked VLAN tunneling involves binding a physical port and a stacked VLAN tunnel to the logical port. Establishing a logical port that uses MPLS tunneling involves binding an MPLS tunnel to a logical port. In one embodiment, the logical port is bound to a static MPLS tunnel and in another embodiment, the logical port is bound to a dynamic MPLS tunnel and the destination IP address of the destination service provider edge device.