| 摘要 |
PCT No. PCT/GB95/01373 Sec. 371 Date May 15, 1997 Sec. 102(e) Date May 15, 1997 PCT Filed Jun. 13, 1995 PCT Pub. No. WO95/35008 PCT Pub. Date Dec. 21, 1995A non-blocking broad band asynchronous transfer mode (ATM) switch having a plurality of ports is adapted to provide a switching function for narrow band traffic by means of adaptive virtual junctors attached to the switch ports to provide ingress to and egress from the switch and each having means for assembly and disassembly of ATM payloads. Each adaptive virtual junctor has a virtual connection with every other adaptive virtual junctor, each said virtual connection comprising a number of virtual circuits. Control means associated with each said adaptive virtual junctor determine on a call by call basis the number of virtual circuits on each virtual connection associated with that adaptive virtual junctor. A semi-permanent pool of capacity may be provided by transmission adaptation devices associated with the adaptive virtual junctors. |
