Shared VT connectivity over SONET

Details Shared VT connectivity over SONET Shared VT connectivity over SONET

2006-02-07

2006-02-07

Chin, Wellington (Department: 2664)

Multiplex communications

Pathfinding or routing

Through a circuit switch

C370S395500, C370S404000, C370S535000

Reexamination Certificate

active

06996095

ABSTRACT:
A communications network includes a communications medium with a synchronous communications transport signal including time-division-multiplexed (TDM) channels, bridges having respective interfaces to different local area network (LAN) segments, and add-drop circuits coupling associated ones of the bridges to the communications medium. Each add-drop circuit groups TDM channels of the communications transport signal into a bundle, and schedules the use of the bundle to carry data traffic originated by the associated bridge and to carry data traffic originated by the other bridges. Data traffic originated by the associated bridge and destined for the other bridges is transmitted on the bundle in accordance with the scheduling. For data traffic received from the other bridges via the bundle, it is determined whether the received data traffic is destined for the associated bridge, and if so then it is forwarded to the associated bridge. Receieved data traffic destined for the other bridges is re-transmitted on the bundle in accordance with the scheduling for receipt by the add-drop circuit associated with the destination bridge.

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IEC, Web ProForum Tutorials, “Synchronous Optical Network (SONET)”, date unknown.
IETF Network Working Group, RFC 1717, The PPP Multilink Protocol (MP), Nov. 1994.
IETF Network Working Group, RFC 1661, “The Point-to-Point Protocol (PPP)”, Jul. 1994.
IETF Network Working Group, RFC 2892, “The Cisco-SRP MAC Layer Protocol”, Aug. 2000.
Enrique Hernandez-Valencia, “GFP Draft Specification—Revision 2”, Lucent Technologies, Jan. 2001.
IETF, RFC 2026, “A Framework for IP over Resilient Packet Rings” Dec. 2000.

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