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:
Nov. 27, 2018
Filed:
Jan. 25, 2016
Gainspeed, Inc., Sunnyvale, CA (US);
Iswar Biswal, Campbell, CA (US);
Bhupesh Kothari, San Jose, CA (US);
Alok Khambatkone, San Jose, CA (US);
Philip Winterbottom, San Jose, CA (US);
NOKIA OF AMERICA CORPORATION, Murry Hill, NJ (US);
Abstract
A novel method of handling network traffic for cable service flows in a distributed cable system is presented. Such a cable systems use remote distribution nodes in the fields to handle RF communications with cable modems in a distributed fashion. A packet engine is configured to assign a logical interface to each cable service flow in the cable system. Each logical interface in the packet engine is uniquely identifiable by a compound identifier that includes the identifier of the corresponding service flow and the identifier of the remote distribution node. The packet engine is configurable to selectively provide Llevel routing or Llevel switching/bridging between different logical interfaces. In some embodiments, the controller selects between configuring the packet engine to perform Lrouting or configuring the packet engine to perform Lbridging based on whether the packet engine support unnumbered interfaces and integrated routing and bridging (IRB). The packet engine of the cable system is configured to use unnumbered interfaces if the number of available IP addresses for use by the cable system is limited.