Patent · US Active

In-service software upgrade of control and line cards of network element

US8402453B2 · kind B2 · utility

13Cited by

12References

19Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Rajeev Gupta · Sunnyvale, US
Renhua Wen · San Ramon, US

Key dates

Filing date	Sep 22, 2010
Grant date	Mar 19, 2013
Priority date	—
Expiry date	May 14, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/445
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Virtually partition control and line cards of network element into virtual partition A and virtual partition B, each including a control card and a line card. Redistribute sessions serviced by cards of virtual partition A to cards of virtual partition B. Then change software on, at least, line card of virtual partition A, while cards of virtual partition B service sessions, including sessions redistributed from cards of virtual partition A. Next redistribute sessions serviced by cards of virtual partition B to cards of virtual partition A. Then change software on line card of virtual partition B and control card of virtual partition B, while cards of virtual partition A service sessions including sessions redistributed from cards of virtual partition B. Next eliminate virtual partitions and redistribute portion of sessions currently serviced by cards of virtual partition A to cards of virtual partition B.

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