초록 ▼

A rate adaptive polling method sensitive to network congestion is used to monitor network resources. Initially, a baseline rate constraint is set based on desirable engineering factors. Unacknowledged polls are retransmitted with timeouts, successively increasing by a factor of 2. During each pollin

A rate adaptive polling method sensitive to network congestion is used to monitor network resources. Initially, a baseline rate constraint is set based on desirable engineering factors. Unacknowledged polls are retransmitted with timeouts, successively increasing by a factor of 2. During each polling round, the rate is adapted in accordance with congestion feedback and changes in node status such as recently activated or deactivated nodes. Congestion feedback is estimated from a congestion metric computed as the average delay of all active nodes. Depending on the value of the congestion metric corresponding to polling round R.sub.j, the minimum rate of polling for round R.sub.j+1 is adapted accordingly.

대표청구항 ▼

[ What is claimed is:] [1.] A method for monitoring network nodes with a minimum polling rate per round j, R.sub.j, said method comprising the steps of:polling said nodes during each round at said rate R.sub.j where R.sub.j equals R.sub.0 for said initial round;estimating congestion in said network

[ What is claimed is:] [1.] A method for monitoring network nodes with a minimum polling rate per round j, R.sub.j, said method comprising the steps of:polling said nodes during each round at said rate R.sub.j where R.sub.j equals R.sub.0 for said initial round;estimating congestion in said network experienced during said round j;adapting the polling rate for round j+1 based on said estimated congestion during round j, said adapted polling rate for round j+1 represented as R.sub.j+1 ; andsetting j=(j+1) and repeating said polling, estimating and adapting steps.