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A method and device for transmitting data packets in a lisp network

A technology of data packets and datagrams, which is applied in the field of communication, can solve problems such as the priority forwarding of high-priority packets and packet loss that cannot be guaranteed, and achieve the effect of avoiding packet loss and ensuring no packet loss

Active Publication Date: 2019-01-22
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on this, when the link is congested, it cannot guarantee that high-priority packets will be forwarded preferentially, resulting in packet loss of high-priority packets

Method used

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  • A method and device for transmitting data packets in a lisp network
  • A method and device for transmitting data packets in a lisp network
  • A method and device for transmitting data packets in a lisp network

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Embodiment Construction

[0033] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a method for transmitting data packets in a LISP network, so as to figure 1 It is a schematic diagram of an application scenario of an embodiment of the present invention. The method is applied in a LISP network including multiple LISP domains, and the LISP domain S communicates with the LISP domain D through the ISP network. Taking terminal devices (such as host A, host B, and host C) in LISP domain S to access service servers (such as server A and server B) in LISP domain D as an example, then LISP domain S includes tunnel entry routers (such as ITR1, ITR2), the LISP domain D includes tunnel egress routers (such as ETR1, ETR2). In addition, the ISP network also includes MS (Map Server, mapping server), which maintains EID and RLOC mapping tables on the mapping server. The EID and RLOC mapping tables are used to record the IP address of the terminal device and the IP addr...

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Abstract

The invention discloses a method and a device for transmitting data messages in an LISP (List Processor) network. The method comprises the steps of receiving a first data message from a terminal device by a tunnel entrance router, wherein the first data message carries priority information corresponding to the terminal device; encapsulating a first tunnel head carrying the priority information for the first data message, and sending the first data message to a tunnel exit router; decapsulating the first tunnel head by the tunnel exit router, and sending the first data message to a business server; receiving a second data message sent from the tunnel exit router to the terminal device by the tunnel entrance router, wherein a second tunnel head carrying the priority information is encapsulated by the second data message; decapsulating the second tunnel head, and the sending the second data message to the terminal device. In the embodiment of the invention, a message in high priority is enabled to be preferentially forwarded, and the message in the high priority is enabled not to be subjected to package loss.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and equipment for transmitting data messages in a LISP network. Background technique [0002] like figure 1 As shown, it is a schematic diagram of LISP (Location / ID Separation Protocol, Location and Identity Separation Protocol) network. The LISP network will divide the network IP address into EID (Endpoint ID, terminal identification) and RLOC (Routing Locator, routing location ). Among them, the EID-to-RLOC mapping relationship will be introduced in the LISP network, the EID is used to identify the host, does not have the global routing function, and the RLOC is used for the entire network routing. In a LISP network, an IPv4 or IPv6 host only identifies its ID, and its location is identified by ITR (Ingress Tunnel Router, tunnel entry router) / ETR (Egress Tunnel Router, tunnel exit router). ITR and ETR are relative, according to report The text direction deter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/725H04L12/851H04L12/46
Inventor 乔辉孙策林鹏程
Owner NEW H3C TECH CO LTD
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