Patent ID: 9497113
Filing Date: 2016-11-15
CPC Classification: H04L

Claim Text:
1. A computer-implemented method for splitting and sharing routing information among routers, the method comprising executing on a router the steps of: in response to a size of a routing table of a first border router exceeding a predefined threshold, splitting the routing table into a plurality of subnetworks, wherein the first border router acts as a single border router in internet protocol network communication with a group of other border routers; assigning responsibility for routing internet protocol network communication traffic intended for a first subnetwork of the plurality of subnetworks to the first border router; informing each of the group of border routers that the first border router is ready to receive internet protocol network communication traffic from the each of the other border routers that is directed to the first subnetwork; and instructing each of the other border routers of the group of border routers to select and remove from their own routing tables at least one route related to the first subnetwork and replace the removed at least one route by a single route pointing to the first border router as next hop.