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PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment

A packet transmission network and circuit simulation technology, applied in the direction of network interconnection, data exchange network, electrical components, etc., can solve the problems of increasing costs and increasing fault points, and achieve the effect of reducing costs and fault occurrence points

Active Publication Date: 2011-04-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, two devices must be placed on the RNC side, which not only increases the cost but also increases the point of failure

Method used

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  • PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment
  • PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment
  • PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment

Examples

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no. 1 example

[0030] image 3 is a schematic structural diagram of an OLT (packet transfer network equipment) according to the first embodiment of the present invention. The OLT includes: a negotiation module and an encapsulation module.

[0031] Wherein, the negotiation module is used for negotiating the inner pseudowire label with the egress provider edge device, negotiating the tunnel label with the provider router, and sending the inner pseudowire label to the ONU, for example, through the LDP protocol. For example, the negotiation module may send the inner pseudowire label to the ONU through an extended OAM (operation / administration / maintenance) message.

[0032]The encapsulation module encapsulates the tunnel label, source MAC address and destination MAC address of the Ethernet message in MPLS encapsulation format according to the outer VLAN label in the Ethernet message received from the ONU, and then sends it to the PSN network.

[0033] After the encapsulation module strips the V...

no. 2 example

[0061] The structure of the OLT according to the second embodiment of the present invention is similar to that of the first embodiment, and also includes a negotiation module and an encapsulation module. The difference is that the functions of each module of the OLT are slightly different.

[0062] Wherein, the negotiation module is used to negotiate the inner pseudowire label with the egress provider edge device, negotiate the tunnel label with the provider router, and exchange the inner pseudowire label, tunnel label, source MAC address, and destination MAC address, for example, through the LDP protocol. The address is sent to the ONU. The negotiating module may, for example, send the inner layer pseudowire label, tunnel label, source MAC address and destination MAC address to the ONU through an extended OAM (operation / administration / maintenance) message.

[0063] The encapsulation module identifies the ONU sending the Ethernet message according to the outer VLAN tag in the ...

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Abstract

The invention provides PTN (Packet Transport Network) equipment and CES (Circuit Emulation Service) equipment. The PTN equipment comprises a negotiation module and an encapsulating module, wherein the negotiation module is used for negotiating an inner pseudo-wire label and a tunnel label and sending the inner pseudo-wire label to the CES equipment, and the encapsulating module is used for encapsulating the tunnel label, a source MAC (Medium Access Control) address and a destination MAC address in an MPLS (Multi Protocol Label Switching) encapsulating format for an Ethernet message received from the CES equipment according to an outer VLAN (Virtual Local Area Network) label in the Ethernet message, sending the encapsulated Ethernet message to the network, stripping the tunnel label, the source MAC address and the destination MAC address from the Ethernet message received from the network, encapsulating the outer VLAN label in the Ethernet message according to the tunnel label and sending the Ethernet message to the CES equipment. The invention can realize the end-to-end circuit simulation service.

Description

technical field [0001] The invention relates to the technology of the end-to-end circuit emulation service of the optical access network in the communication technology, especially the packet transmission network equipment and the circuit emulation service equipment for realizing the end-to-end circuit emulation service. Background technique [0002] With the further deepening of mobile communication's substitution role for fixed network operations, broadband services have gradually become a new profit growth point and strategic investment focus for fixed network operators, and have also become another focus of competition besides mobile communication services. As the number of broadband access users continues to grow rapidly, emerging services such as IPTV (Internet Protocol Television, Interactive Internet Television), VOD (Video On Demand, Video On Demand), online games, and multimedia interaction are testing the existing bandwidth. The DSL access method of copper cable e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L29/06
CPCH04L12/4633H04L12/4641H04L45/00H04L45/50
Inventor 孙鹏马小松
Owner ZTE CORP
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