MAINTAINING A LINK CONNECTION WHEN A LINK REPEATER RESETS
Original Publication Date: 1999-Jun-01
Included in the Prior Art Database: 2002-Aug-16
The current system uses a GO-BACK-N algo- rithm to communicate between an lntelli-Repeater (IR) site and a Zone Controller (ZC). The GO- BACK-N algorithm requires that each end of the link maintain a sent queue. The sent queue of all messages sent that have not been acknowledged by the other end of the link. The reason for the sent queue is so that if a message is dropped on the link, the receiving end can request for re-transmission of the message. The problem occurs when the IR that is maintaining the link at the site (Link Repeater -LR) resets. When the LR resets another IR is cho- sen to become the LR but that repeater does not have a sent queue and the link must be dropped and reinitialized (packets could be lost and the site would go to Site Trunking).