Patent ID: 9049106
Filing Date: 2015-06-02
Classification: H04L

Abstract:
1. A method of providing gateway redundancy, comprising: associating with a plurality of subscriber subnets, on each of a master and a standby gateway, a single Internet Protocol routing redundancy protocol instance, wherein a digital subscriber line access multiplexer connects a same host to the master gateway and the standby gateway; and using the single Internet Protocol routing redundancy protocol instance associated with a subscriber subnet of the plurality of subscriber subnet to provide gateway redundancy for the plurality of subscriber subnets; wherein associating the single Internet Protocol routing redundancy protocol instance with the plurality of subscriber subnets comprises configuring on each of the master and the standby gateway, a group Internet Protocol interface and associating the plurality of subscriber subnets with the group Internet Protocol interface, and associating the group Internet Protocol interface with the single Internet Protocol redundancy protocol instance, and the group Internet Protocol interface is an interface that does not have local subnets of its own.