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Service plane triggered fast reroute protection

A business plane and business technology, applied in the field of computer networks, can solve problems affecting performance, sensitivity to traffic loss, and disadvantages

Active Publication Date: 2014-01-15
JUMIPER NETWORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These large convergence times can adversely affect the performance of applications such as Voice over Internet Protocol (VoIP) and multimedia applications that typically rely on RSVP-TE and are extremely sensitive to traffic loss

Method used

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  • Service plane triggered fast reroute protection
  • Service plane triggered fast reroute protection
  • Service plane triggered fast reroute protection

Examples

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Embodiment Construction

[0021] figure 1is a block diagram illustrating exemplary system 10 in which routers 12A-12G ("routers 12") and service nodes 20A-20B ("service nodes 20") of network 14 are configured to operate in accordance with the techniques of this disclosure. exist figure 1 In the example shown in , router 12A is an edge router of network 14 , which may be managed by a network service provider, and which provides connectivity for subscribers 18A through 18N ("subscribers 18"). Edge router 12A is coupled to access point (AN) 16 ("AN 16") via access links 19A-19N. A user may be associated with a customer network or an access network (not shown). Edge router 12A communicates with access point 16 to provide user 18 access to network 14 .

[0022] Each user 18 may include one or more computing devices (not shown), such as personal computers, laptops, handheld computers, workstations, servers, switches, printers, or other devices. Network 14 may be a service provider network coupled with on...

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Abstract

Techniques are described for detecting failure or degradation of a service enabling technology function independent from an operational state of a service node hosting the service enabling technology function. For example, a service node may provide one or more service enabling technology functions, and service engineered paths may be traffic-engineered through a network to service node network devices that host a service enabling technology function. A monitor component at the service layer of the service node can detect failure or degradation of one or more service enabling technology functions provided by the service node. The monitor component reports detection of failure or degradation to a fault detection network protocol in a forwarding plane of the service node. The fault detection network protocol communicates with an ingress router of a service engineered path to trigger fast reroute by the ingress of traffic flows to bypass the affected service enabling technology function.

Description

[0001] priority statement [0002] This application claims the benefit of US Patent Application Serial No. 13 / 533,961, filed June 26, 2012, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to packet-based computer networks, and more particularly, to forwarding packets within computer networks. Background technique [0004] A computer network is a collection of interconnected computing devices that exchange data and share resources. Within a packet-based network, such as the Internet, computing devices communicate data by dividing the data into small chunks called packets. Packets are individually routed from the source device to the destination device through the network. The target device extracts the data from the packets and assembles the data into its original form. Dividing the data into packets allows the source device to resend only those individual packets that could be lost in transit. [0005] Mu...

Claims

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Application Information

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IPC IPC(8): H04L12/703H04L45/24H04L45/28
CPCH04L45/22H04L45/28H04L41/5025H04L41/0659
Inventor 詹姆士·吉夏尔戴维·沃德
Owner JUMIPER NETWORKS INC
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