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Network connection segment monitoring

A technology of communication connection and technology, which is applied in the field of communication network and can solve problems such as not supporting the configuration of segmented monitoring units

Inactive Publication Date: 2012-07-18
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Generalized Multiprotocol Label Switching (GMPLS) protocol discussed below does not support the configuration of Segment Monitoring Units

Method used

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  • Network connection segment monitoring
  • Network connection segment monitoring
  • Network connection segment monitoring

Examples

Experimental program
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Embodiment Construction

[0031] Now, a distinction is made between the two main alternatives shown in Figures 1 and 2 to implement segment monitoring.

[0032] Figure 1 is a schematic diagram of a communication connection for which segmented non-intrusive monitoring (NIM) is implemented using prior art techniques. End-to-end traffic flows from ingress node 11 to egress node 12 . A non-interventional node (NIN) 13 listens to end-to-end traffic, but does not modify the end-to-end traffic. Upon detection of a problem on the segment between the entry node and the NIN, the NIN invokes subsequent actions.

[0033] Figure 2 is a schematic diagram of a communication connection with segmented tandem connection monitoring (TCM) of the connection implemented using prior art techniques. Likewise, end-to-end traffic flows from ingress node 11 to egress node 12 . The TCM ingress node 21 inserts additional OAM flows into the end-to-end traffic. The TCM egress node 22 demultiplexes and processes the additional st...

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Abstract

A method and ingress node for configuring intermediate OAM monitoring entities to monitor the quality of segments of a communication connection between an ingress node and an egress node. The ingress node constructs an object that includes technology-independent OAM parameters, identities of the OAM monitoring entities to be configured, and technology- specific attributes, wherein the technology-independent OAM parameters define an OAM type and desired monitoring actions by each of the identified OAM monitoring entities, and the technology-specific attributes define descriptors for configuring the 0AM monitoring entities in accordance with a communication protocol utilized for the connection. The ingress node utilizes Generalized Multi-Protocol Label Switching, GMPLS, signaling to send the object to the OAM monitoring entities. The object may be a Hop Attributes sub-object or a Label Switching Protocol, LSP, Attributes object including a Segment OAM Configuration Type-Length-Value, TLV, field that includes the technology-independent OAM parameters and technology-specific attributes.

Description

[0001] related application [0002] This application claims priority to US Provisional Patent Application No. 61 / 251,909, filed October 15, 2009. technical field [0003] The present invention relates generally to communication networks and in particular to a method of configuring a tandem connection entity and a non-intrusive monitoring entity for monitoring a connection segment. Background technique [0004] Multiple transport network technologies such as Synchronous Digital Hierarchy (SDH), Optical Transport Network (OTN), Multiprotocol Label Switching-Transport Architecture (MPLS-TP) Provider Backbone Bridging Traffic Engineering (PBB-TE) provide operational and The maintenance (OAM) function is used to monitor the status or quality of the data plane connection. The OAM function can invoke the actions of the data plane, control plane and management plane, such as protection switching, rerouting of control plane control, notification alarm of the management plane, etc. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/24
CPCH04L41/084H04L41/5009H04L41/5077H04L43/12H04L41/0806H04L43/0811H04L43/10H04L43/00
Inventor 安德拉斯·科恩奥蒂洛·陶卡奇
Owner TELEFON AB LM ERICSSON (PUBL)
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