公开(公告)号：DE3784168T2

公开(公告)日：1993-09-16

申请号：DE3784168

申请日：1987-09-23

Applicant: IBM

Inventor： BUSTINI LIONEL ,  CRETEGNY ANDRE ,  MARMIGERE GERARD ,  PLATEL GUY ,  SECONDO PIERRE

IPC: H04J3/24 ,  H04L12/64 ,  H04L12/54 ,  H04J3/16

Abstract: In a packet switching network, voice packets are made to include an EC field whose contents indicates whether the corresponding packet is eligible for clipping if required in a node queue within the network. Should clipping of a non eligible packet be required, then another bit field would be set in the following packet on same link to limit any possible clipping of successive packets an same link.

公开(公告)号：DE3784168D1

公开(公告)日：1993-03-25

申请号：DE3784168

申请日：1987-09-23

Applicant: IBM

Inventor： BUSTINI LIONEL ,  CRETEGNY ANDRE ,  MARMIGERE GERARD ,  PLATEL GUY ,  SECONDO PIERRE

IPC: H04J3/24 ,  H04L12/64 ,  H04L12/54 ,  H04J3/16

Abstract: The data transfer process involves using nodes where incoming packets are enqueued prior to being forwarded toward their destination. Clipping operations are performed within the nodes by selectively discarding enqueued packets. The packets include an EC field initially loaded to indicate whether the corresponding packet is eligible for clipping or not within the network. The packets from a source terminal are made eligible for clipping on a periodic basis. The sequence is made to designate as eligible for clipping every other packet from the source. Each packet includes a bit position (PC) to be used to bar the clipping of the corresponding packet. If required within a network node, a non eligible for clipping packet may be clipped, with the prevent clipping bit of next from same source being set during its transfer through the node, whereby the next packet is prevented from any subsequent clipping along its path within the network.