Methods of using beacon messages to discover devices across subnets

• US 9,491,137 B2
• Filed: 07/01/2015
• Issued: 11/08/2016
• Est. Priority Date: 07/18/2012
• Status: Active Grant

• Current Assignee: Accedian Networks Inc. (Cisco Systems, Inc.)
• Original Assignee: Accedian Networks Inc. (Cisco Systems, Inc.)
• Inventors: Robitaille, Claude, Bouffard, Pierre
• Primary Examiner(s): Gilles, Jude Jean
• Application Number:
  US14/789,066
• Publication Number:
  US 20150326527A1
• Time in Patent Office: 496 Days
• Field of Search: 709/217, 709/220, 709/229
• US Class Current: 1/1
• CPC Class Codes: H04L 41/0816 the condition being an adaptation, e.g. in response to network events
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 61/5069 for group communication, multicast communication or broadcast communication
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46

Abstract

A method of discovering a device to be discovered in a communication network having multiple interconnected nodes includes transmitting, by a discoverer, at least one beacon signal including an IP address to the network. The device to be discovered receives the at least one beacon signal. The device to be discovered configures the IP address located in the at least one beacon signal. Additionally, the device to be discovered transmits an advertisement to a server specified by the discoverer.

Claims

1. A method of discovering an undetected device to be discovered in a communication network having multiple interconnected nodes, comprising:

transmitting, by a discoverer to the device to be discovered, at least one unsolicited beacon signal including an IP address to the network and forwarding instructions, said transmitting based on Dynamic Host Configuration Protocol (DHCP);

receiving, by the device to be discovered, the at least one unsolicited beacon signal;

configuring the device to be discovered with forwarding instructions located in the at least one unsolicited beacon signal, to forward the beacon signal to one or more undetected devices downstream; and

transmitting, by the device to be discovered, an advertisement to a server specified by the discoverer,

wherein the device to be discovered will only take steps to be discovered if it is prompted to do so by the at least one unsolicited beacon signal.

2. A system for of discovering a device to be discovered in a communication network having multiple interconnected nodes, comprising:

a discoverer coupled to a first processor, wherein said discoverer transmits at least one unsolicited beacon message including an IP address to the device to be discovered over the communication network, wherein the at least one unsolicited beacon message is a dynamic host configuration protocol (DHCP) offer message modified so as to be rejected by any device that supports a traditional 4-way DHCP message handshake; and

a device to be discovered coupled to a second processor, wherein the device to be discovered is an undetected device on the network, and

said device to be discovered receives the at least one unsolicited beacon message transmitted by the discoverer;

wherein the device to be discovered is configured by the at least one beacon message to forward the beacon to one or more undetected devices downstream;

wherein the device to be discovered transmits an advertisement to a server specified by the discoverer in the at least one unsolicited beacon message; and

wherein the device to be discovered will only take steps to be discovered if it is prompted to do so by the unsolicited beacon message.

3. A method of discovering an undetected device to be discovered in a communication network having multiple interconnected nodes, comprising:

transmitting to the communication network, by a discoverer, at least one unsolicited beacon signal including an IP address to the communication network, wherein the at least one unsolicited beacon signal is a modified dynamic host configuration protocol (DHCP) offer message;

receiving, by the device to be discovered, the at least one unsolicited beacon signal;

configuring the device to be discovered with forwarding instructions located in the at least one unsolicited beacon signal, to forward the at least one unsolicited beacon signal to one or more undetected devices downstream; and

transmitting, by the device to be discovered, an advertisement to a server specified by the discoverer to indicate that the device to be discovered is present in the communication network,

wherein the device to be discovered will only take steps to be discovered if it is prompted to do so by the at least one unsolicited beacon signal.