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A method and device for implementing dual-homing in lisp networking

An implementation method and dual-homing technology, which is applied in the field of communication, can solve the problems that dual-ITR networking cannot achieve dual-homing networking capabilities, and achieve the effects of disaster recovery and load balancing capabilities, cost savings, and simplified configuration

Active Publication Date: 2019-08-06
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides a LISP networking dual-homing implementation method and device to solve the problem that dual-ITR networking cannot achieve dual-homing networking capabilities

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  • A method and device for implementing dual-homing in lisp networking
  • A method and device for implementing dual-homing in lisp networking
  • A method and device for implementing dual-homing in lisp networking

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Embodiment Construction

[0035] In the prior art, there are two solutions for realizing LISP dual-homing. One is that for each type of operator, ITR2 needs to add a set of addresses pointing to MR for each host and match the corresponding address mapping table. If there are N types of operators and M hosts, ITR2 needs to add N *M kinds of configurations; and it is also necessary to add an address translation relationship to NAT. If there are N types of operators, NAT needs to configure N*2 address translation relationships. Therefore, when the number of hosts is large and there are many types of operators, the configuration is just It will be very complicated and huge, and the logic is complicated, which is not conducive to maintenance. The other is that it is equivalent to adding one more ITR for each type of operator, and the number of ITR equipment is the number of operator types * 2. This not only increases the complexity of the network, but also greatly increases the cost.

[0036] Therefore, wh...

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Abstract

The present invention provides a method and device for realizing dual-homing in a LISP network. The method includes: the first ITR creates a first synchronization message according to the first address mapping relationship, and the source IP address of the first synchronization message is the first The first ITR address corresponding to an ITR, the destination IP address of the first synchronization message is the second ITR address corresponding to the second ITR; the first synchronization message is sent to the second ITR, so that the The second ITR saves a first correspondence between the first address mapping relationship and the first ITR address. Therefore, the present invention realizes the selection error when the virtual machine passes through multiple types of operators and avoids the selection error when NAT converts the operator's address, realizes the disaster recovery capability and load balancing capability of LISP dual-homing networking, and simplifies the configuration in the device at the same time, saving Cost of dual-homing networking.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for realizing dual-homing in LISP networking. Background technique [0002] LISP (Locator / Identity Separation Protocol, Location and Identity Separation Protocol) is a new network protocol proposed to solve the existing Internet network such as the continuous growth of the global routing table and mobility requirements. It adopts the idea of ​​separating location and identification to form two independent address spaces: EID (Endpoint Identifier, endpoint identification) and RLOC (Routing Locator, routing location identifier), where EID is used to identify the host and does not have the global routing function , RLOC is used for network-wide routing. The ITR (Ingress Tunnel Router) in each LISP tunnel can use the RLOC address to perform LISP encapsulation on the packet sent by the host and send it to the remote ETR (Egress Tunnel Router) through the LI...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/24H04L12/803H04L45/74
CPCH04L41/0663H04L45/74H04L47/125
Inventor 郭威王伟
Owner NEW H3C TECH CO LTD
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