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Communicating network path and status information in multi-homed networks

A network path and network technology, which is applied in the field of computer networks, can solve problems such as adverse effects of data packets sent or received by customers, data packet loss, interruption, etc.

Active Publication Date: 2014-12-10
JUMIPER NETWORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With either of these techniques, packets traveling over the link may be lost and clients sending or receiving packets may be adversely affected
Also, services running on the same link that are not affected by network errors may be interrupted due to a broken link or link flapping

Method used

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  • Communicating network path and status information in multi-homed networks
  • Communicating network path and status information in multi-homed networks
  • Communicating network path and status information in multi-homed networks

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 is a block diagram illustrating system 2 comprising an exemplary multi-homed Metro Ethernet ("ME") network coupled to network 10 via links 19A and 19B and provider edge ("PE") routers 14A and 14B. 12A. Network 10 is further coupled to a second ME network 12B via PE router 14C. PE routers 14A-14C (collectively "PE routers 14") facilitate connection to various network devices, such as customer devices ("CDs") 18A and 18B (collectively "CD18")) between content access. Each CD 18 may be a personal computer, laptop computer, mobile phone, Internet phone, television set-top box, video game system, point-of-sale device, personal digital assistant, intermediate network device, network requester, or capable of communicating with the ME network 12 Other types of devices for interfacing and communicating. Additionally, each CD 18 may be a gateway, router, switch, or other device for coupling customer networks to ME network 12 .

[0027] Network 10 may be an intermedi...

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Abstract

An example network system includes a layer two (L2) device and a layer three (L3) device. The L2 device includes a control unit is configured to determine a preferred network path from a first L2 network in which the L2 device resides to an intermediate L3 network in which the L3 device resides that couples the first L2 network to a second L2 network having a second L2 device. The control unit includes a management endpoint (MEP) module. The MEP module executes an operations, administration, and management (OAM) protocol to monitor the first L2 network and output an L2 frame in accordance with the OAM protocol to the L3 device to notify the L3 device that it is within the preferred network path. A MEP module of the L3 device executes an OAM protocol that outputs L2 frames to the L2 device indicating the status of the L3 network.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Patent Application No. 12 / 772,771, filed May 3, 2010, which claims the benefit of U.S. Provisional Application No. 61 / 312,105, filed March 9, 2010, the entire contents of which are incorporated in This is for reference. technical field [0003] The present invention relates to computer networks and, more particularly, to routing and fault detection within computer networks. Background technique [0004] A computer network is a collection of interconnected computing devices that exchange data and share resources. Computing devices may be interconnected by one or more links. The term "link" is generally used to refer to a connection between two devices on a network, and may include a physical medium such as copper wire, coaxial cable, or any of a number of different fiber optic lines, or a wireless connection. Typically, in densely populated areas, computer networks include ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/703H04L12/26H04L45/28H04L45/24
CPCH04L41/0663H04L49/557H04L43/0811H04L45/24H04L45/22H04L5/0085H04L45/28
Inventor 潘卡杰·舒克拉马尼什·古普塔
Owner JUMIPER NETWORKS INC