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:
Jul. 17, 2007
Filed:
Nov. 19, 1998
Scott Bales, Durham, NC (US);
Scott Bales, Durham, NC (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A technique improves the interaction between a backup remote data link switch (DLSw) device coupled to a remote: subnetwork having an Ethernet switch and a local DLSw device coupled to a local subnetwork of a DLSw network. When the backup remote DLSw device accepts a DLSw peer connection with the local DLSw device, the remote device uses configuration information to determine which end stations it can reach through the peer connection. The remote DLSw device then generates one or more test frames having the medium access control (MAC) addresses of those reachable stations as source MAC addresses. The test frames are sent through the Ethernet switch to force the switch to immediately update its forwarding table with the port identifier of the port receiving the incoming frames, along with the source MAC addresses of those frames.