Error monitoring algorithm for broadband signaling
First Claim
1. A method of error monitoring a communications link on which messages are transmitted between a transmitter and a receiver, which transmitter transmits a poll at the end of each periodic polling interval, and which receiver responds to each poll by transmitting to the transmitter a star message indicating which messages have been received in error or not received, and which transmitter retransmits only those messages either received in error or not received by the receiver, comprising the steps of:
- (1) at the end of a polling interval, assigning a penalty factor to the interval that is determined as a function of whether or not during the interval the transmitter retransmitted any message, and whether or not any stat messages were received by the transmitter within a predetermined number of polling intervals;
(2) for a block comprising N-- blk consecutive polling intervals, computing the average penalty factor;
(3) comparing a quality of service (QOS) measure equal to the average penalty factor for the block with a predetermined threshold; and
(4) removing the link from service if the QOS measure for the block is greater than the predetermined threshold.
9 Assignments
0 Petitions
Accused Products
Abstract
The error performance of an ATM signaling link operating under the service specific connection oriented protocol (SSCOP) is monitored at the transmitting end of the link by attributing a penalty factor at the end of each polling interval. That penalty factor is determined by whether or not any message was retransmitted in the interval, and whether or not any stat messages transmitted by the receiver in response to each poll were received from the receiver within a predetermined number of polling intervals. At the end of a block of N-- blk polling intervals, a quality of service (QOS) measure is determined based on the average penalty factor of the block. If the QOS measure is greater than a predetermined threshold, then the link is removed from service. In order to adequately monitor a link with low traffic, the number of stat messages that are are lost within a superblock of N-- sup polling intervals is determined and if greater than a predetermined number, the link is removed from service.
-
Citations
20 Claims
-
1. A method of error monitoring a communications link on which messages are transmitted between a transmitter and a receiver, which transmitter transmits a poll at the end of each periodic polling interval, and which receiver responds to each poll by transmitting to the transmitter a star message indicating which messages have been received in error or not received, and which transmitter retransmits only those messages either received in error or not received by the receiver, comprising the steps of:
-
(1) at the end of a polling interval, assigning a penalty factor to the interval that is determined as a function of whether or not during the interval the transmitter retransmitted any message, and whether or not any stat messages were received by the transmitter within a predetermined number of polling intervals; (2) for a block comprising N-- blk consecutive polling intervals, computing the average penalty factor; (3) comparing a quality of service (QOS) measure equal to the average penalty factor for the block with a predetermined threshold; and (4) removing the link from service if the QOS measure for the block is greater than the predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method of error monitoring a digital communications link on which messages are transmitted between a transmitter and a receiver, which transmitter transmits a poll at the end of each periodic polling interval, and which receiver responds to each poll by transmitting to the transmitter a stat message indicating which messages have been received in error or not received, and which transmitter retransmits only those messages either received in error or not received by the receiver, comprising the steps of:
-
(1) at the end of a polling interval, assigning a penalty factor to the interval that is determined as a function of whether or not during the interval the transmitter retransmitted any message, and whether or not any stat messages were received by the transmitter within a predetermined number of polling intervals; (2) for a block comprising N-- blk consecutive polling intervals, computing the average penalty factor; (3) comparing a quality of service (QOS) measure equal to the average penalty factor for the block with a predetermined threshold; and (4) removing the link from service if the QOS measure for the block is greater than the predetermined threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification