公开(公告)号：US20030161299A1

公开(公告)日：2003-08-28

申请号：US10396100

申请日：2003-03-25

Applicant: NORTEL NETWORKS LIMITED

Inventor： Sanjay H. Rao ,  Kenneth W. Oxendine ,  Richard Sigler

IPC: H04L012/66

CPC classification number: H04M7/006 ,  H04Q11/04 ,  H04Q2213/13003 ,  H04Q2213/13096 ,  H04Q2213/13103 ,  H04Q2213/13106 ,  H04Q2213/13164 ,  H04Q2213/13166 ,  H04Q2213/13176 ,  H04Q2213/13196 ,  H04Q2213/13204 ,  H04Q2213/13216 ,  H04Q2213/13292 ,  H04Q2213/13298 ,  H04Q2213/13389

Abstract: Method and apparatus for reducing load distribution delay in an internet protocol switch. A system of messaging allows leader and follower cards within a switch to communicate without spanning the external network and without significant involvement by the central computing module within a switch. When a call setup request is received by a leader card, it sends a broadcast message to follower cards within a multicast group. Each follower card responds with address and channel information which enable the leader card to perform load balancing and establish a connection through the appropriate follower card.