Patent ID: 10305780

Abstract:
The problem of excessive BGP updates to update the AIGP cost is systems with excessively changing IGP metrics is solved by (1) monitoring AIGP value changes over a given time period, (2) determining whether or not the AIGP value changes over the given period of time are excessive (e.g., are greater than a predetermined threshold), (3) responsive to a determination that the AIGP changes over the given period of time are not excessive, use the actual AIGP value in the AIGP protocol, but otherwise, responsive to a determination that the AIGP changes over the given period of time are excessive, (i) setting (e.g., locking) the AIGP value to a predetermined or derived value (and using the set or locked AIGP value in advertisements) for a second period of time (regardless of whether or not the actual AIGP value changes during the second period of time), and (ii) using the set (e.g., locked) AIGP value in the AIGP protocol.