Technique for efficiently transporting information through an as

Details Technique for efficiently transporting information through an as Technique for efficiently transporting information through an as

1997-10-20

2000-11-07

Vu, Huy D.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370410, H04L 1250

Patent

active

061446661

ABSTRACT:
In an asynchronous transfer mode (ATM) communications system, all ATM switches in a multicast connection perform virtual path (VP) switching except those merge points which perform virtual channel (VC) switching to avoid VCI collisions. The merge points are ATM switches which can merge ATM traffic from at least two incoming links into an outgoing link. In a second approach, each merge point in a multicast connection performs VP switching, and dynamically dispenses VC switching when a VCI collision is detected. Specifically, to prevent further VCI collision, incoming ATM cells indicated by an odd VPI value are VC switched by the merge point while those indicated by an even VPI value are VP switched thereby.

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