IN-SERVICE SOFTWARE UPGRADE OF CONTROL AND LINE CARDS OF NETWORK ELEMENT

摘要

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.