Patent · US Active

Automatically identifying an edge-facing router

US8917737B2 · kind B2 · utility

0Cited by

1References

22Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Hemant Singh · Bhangrola, IN
William Beebee · Acton, US
Ralph Droms · Boxborough, US
Ole Troan · Bergen, NO

Key dates

Filing date	Oct 17, 2013
Grant date	Dec 23, 2014
Priority date	—
Expiry date	Oct 17, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2101/659
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Techniques for automatically identifying an edge-facing router in a network are provided. In one technique, a DHCP message is obtained at a router of a subscriber network. An options field of the DHCP message is identified. The options field of the DHCP message is analyzed to determine whether data in the options field indicates that first router is SP-facing. If it is determined that the router is an SP-facing router, then identification data that identifies the router as an SP-facing router is stored.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.