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Pseudowires that provide in-band control channels using offset

A technology for controlling channels and pseudowires, used in data exchange through path configuration, digital transmission systems, electrical components, etc.

Inactive Publication Date: 2016-08-17
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

VCCV (type 1) using control words is in-band, but limits multipath routing to the use of pseudowire tag stack information

Method used

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  • Pseudowires that provide in-band control channels using offset
  • Pseudowires that provide in-band control channels using offset
  • Pseudowires that provide in-band control channels using offset

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Embodiment Construction

[0015] In the following description, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In other instances, well-known circuits, structures and techniques have not been shown in detail in order not to obscure the understanding of this description. However, one skilled in the art will recognize that the present invention may be practiced without such specific details. Those skilled in the art, with the included description, will be able to implement the appropriate functionality without undue experimentation.

[0016] will refer to figure 1 and 2 The exemplary embodiments describe the operation of the flowchart. It should be understood, however, that the operations of the flowcharts may be varied by the present invention from those of the reference figure 1 and 2 Example implementations of the discussed embodiments, and reference to figure 1 and 2 The discussed embodime...

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Abstract

A method implemented by a first provider equipment (PE) device to implement Operations, Operations and Management (OAM) functionality over a pseudowire (PW) between the first PE device and a second PE device, wherein the PW passes through over a packet switched network and carrying control channel messages and data packet streams, and wherein the packet switched network includes nodes that use information external to a pseudowire label stack of data packets for determining multipath routing, the method comprising receiving the control channel at a first PE The message is forwarded to the second PE over the pseudowire, and the control channel message is prefixed with a pseudoflow header to ensure that the control channel message is forwarded by the nodes of the packet-switched network through the same route as the data packets of the flow, thereby enabling OAM functionality Performs exactly for pseudowires.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from US Provisional Patent Application No. 61 / 385,630, filed September 23, 2010. technical field [0003] Embodiments of the present invention relate to a system for providing an in-band control channel over a pseudowire. Specifically, embodiments of the present invention relate to a system in which virtual circuit connectivity verification and similar operations, operations, and management functions can be performed on an in-band control channel, while intermediate nodes use non- Pseudowires mark stack information. Background technique [0004] Pseudowires are mechanisms that emulate the essential properties of telecommunication services over various Packet Switched Network (PSN) types, such as T1 leased lines or Frame Relay. Pseudowires are intended to provide only the minimum functionality needed to emulate a service with the required fidelity of a given service definition. Requir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/723H04L12/729H04L12/46H04L45/50H04L45/125
CPCH04L12/4641H04L43/10H04L45/304H04L45/68H04L45/00H04L12/46
Inventor S.基尼
Owner TELEFON AB LM ERICSSON (PUBL)
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