Patent ID: 8825904
Filing Date: 2014-09-02
Classification: H04L

Abstract:
1. A method of address management implemented on two broadband remote access servers (BRAS)s that work in a dual module hot spare mode comprising: utilizing two BRASs running a dual module hot spare mode that are backing up each other, wherein a plurality of backup groups are deployed between the two BRASs and share a sharing address pool managed by the BRASs; dividing the sharing address pool into at least two logical segments, wherein each of the logical segments contains at least one address; assigning at least two logical segments to the plurality of backup groups; when one of the two BRASs receives an access request of a user, determining whether the BRAS is a main device of the backup group accessed by the user, detecting whether there is an idle address in the backup group accessed by the user when the BRAS is the main device of the backup group accessed by the user; assigning the idle address to the user directly by the main BRAS if there is idle address in the backup group accessed by the user; assigning a new logical segment to the backup group by the main BRAS if there is no idle address in the backup group accessed by the user; and selecting an address from the new logical segment and assigning the address to the user by the main BRAS.