公开(公告)号：US10020986B1

公开(公告)日：2018-07-10

申请号：US15012401

申请日：2016-02-01

Applicant: Juniper Networks, Inc.

Inventor： Aleksey Romanov ,  Paul Raison

IPC: H04L12/26 ,  H04L12/24 ,  H04L29/08 ,  H04L29/06 ,  H04L29/12

CPC classification number: H04L41/0672 ,  H04L29/12509 ,  H04L61/203 ,  H04L61/2517 ,  H04L61/2567 ,  H04L63/08 ,  H04L63/0892 ,  H04L67/1008 ,  H04L67/142 ,  H04L67/145 ,  H04W4/50

Abstract: An example network access device (NAD) includes a network interface to send and receive packets with an authentication, authorization, and accounting (AAA) server, and a subscriber management service unit (SMSU). The SMSU is configured to, responsive to determining that the AAA server is not reachable by the NAD, send a message from the NAD to the AAA server using the network interface, wherein the message directs the AAA server to send a discovery request message to the NAD, receive the discovery request message from the AAA server using the network interface, wherein the discovery request message includes a request for information about a plurality of subscriber sessions, and generate a discovery response message that includes information about at least a portion of the plurality of subscriber sessions, and send the discovery response message to the network access device using the network interface.