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Media forwarding method, system and device

A technology of a forwarding system and a forwarding method, which is applied to the selection device, transmission system, and selection device of a multiplexing system, and can solve the problems that a video service server cannot adjust video transmission, cannot perceive video characteristics, and dynamically adjust video transmission, etc. , to achieve the effect of improving the experience quality and user experience

Active Publication Date: 2009-12-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the video service server is mainly installed in the core network, and the video service server cannot perceive the specific access technology, and the root cause of the deterioration of the user's video QoE (Quality of Experience, quality of experience) lies in the physical condition of the last mile of the access line, and the video service The server cannot adjust video transmission according to the physical conditions of the last mile line to improve user video QoE; at the same time, the current access network is mainly designed for Layer 2 access, and cannot perceive video characteristics, nor can it be based on the last mile Dynamically adjust video transmission according to the physical conditions of the line to improve user video QoE

Method used

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  • Media forwarding method, system and device
  • Media forwarding method, system and device

Examples

Experimental program
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Embodiment 1

[0090] In Embodiment 1 of the present invention, assuming that the media access network is based on IP awareness or IP routing, then for AON, the following processing is specifically required:

[0091] 1. Set each node of the overlay network as a PE / s-PE (Provider Edge / SwitchingPE) node, and each node of the overlay network supports ARP proxy.

[0092] 2. Add L2 OL (Layer 2overlay layer, two-layer overlay layer).

[0093] Such as Figure 9 As shown, the L2 OL is composed of M-VID, and the specific basic media processing type is indicated by the M-VID of the L2 OL; the M-VID indicates the IP address, Ethernet destination address (DA, Destination Address), source address (SA, Source Address), Ethernet type Ethertype, virtual local area network identifier (VID, VLAN Identifier) ​​(can be composed of multiple VLANs) determines the basic media processing type of data flow; IP address, Ethernet destination address, source address, Ethernet type , the virtual local area network ide...

Embodiment 3

[0205] Embodiment 3 of the present invention, assuming that the media access network is based on MPLS tunnels, then for AON, the following processing needs to be performed specifically:

[0206] 1. Set each node of the overlay network as a PE / s-PE node, and MPLS tunnels are used to interconnect PE / s-PE nodes.

[0207] 2. Add PW OL (Pseudo Wire overlay layer).

[0208] Such as Figure 13 As shown, the PW OL is composed of an MPLS label (called M-MPLS label, MediaMPLS label), and the specific basic media processing type is indicated by the M-MPLS label of the PW OL; the M-MPLS label indicates the basic The type of media processing.

[0209] 3. The PW switching table (that is, the following media processing and forwarding table or media processing and forwarding extension table) is configured by the Multi-service Controller, and the PW switching table adds the M-MPLS label item indicating the basic media processing type and the next hop M- MPLS label.

[0210] 4. AON can no l...

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Abstract

The embodiment of the invention discloses a media forwarding method, a system and a device. The system comprises a multi-service controller and an access overlay node (AON); wherein, the multi-service controller is used for controlling the AON to carry out media forwarding on media stream and monitoring the quality of experience (QoE) of the media stream; the AON is used for accepting the control of the multi-service controller, adding an overlay layer on a layer 2 or a pseudo wire (PW) of the media stream for media forwarding and feeding back the feature data of the QoE of the media stream to the multi-service controller. By the invention, an access network can carry out media processing and forwarding on the media stream through optimal paths and monitor the QoE of the media stream through the overlay layer of the layer 2 or PW; when the QoE is degraded, the path for media processing is reconfigured and optimized according to the media processing resource placement of the access network so as to dynamically improve the QoE of the media stream and user experience.

Description

technical field [0001] The present invention relates to the technical field of media transmission, in particular to a media forwarding method, system and device. Background technique [0002] The network reference architecture of the optical access network is as follows: figure 1 shown. The entire reference architecture of the optical access network OAN (Optical Access Network) is composed of the customer premises network CPN (Customer Premises Network), the access network AN (Access Network) and the service function point SNF (Service Node Function). Among them, in the access network, AF (Adaptation Function) is an adaptation function body, which is an optional device, mainly providing optical network unit / optical network terminal ONU (Optical Network Unit) / ONT (Optical Network Terminal) interface and UNI (User Network Interface, user network interface) interface conversion, AF can also be built in the ONU, so that (a) the reference point can be omitted. The AF can also ...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04L29/06
CPCH04L45/12H04L45/68H04L45/308H04L45/70
Inventor 郑若滨
Owner HUAWEI TECH CO LTD
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