Time slotted logical ring

Details Time slotted logical ring Time slotted logical ring

2003-04-14

2008-07-15

Pham, Chi H. (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S442000, C725S110000, C725S114000

Reexamination Certificate

active

07400637

ABSTRACT:
A Time Slotted Logical Ring protocol manages the flow of traffic in a duplex media including a cable distribution network with a head end, a local node, and a group of subscribers. The subscriber includes a cable modem which produces an HDLC serial interface which then goes to the subscriber or gets converted to ethernet by a router and then to the subscriber. The Time Slot portion of TSLR protocol manages upstream and downstream access and uses time tick identification frames in the downstream direction to control upstream traffic. A multiple logical ring protocol in TSLR is used to allocate cable bandwidth between the multiple subscribers.

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