LISP (Locator/Identity Separation Protocol) networking dual-homing realization method and device

An implementation method and dual-homing technology, applied in the field of communications, can solve the problem that dual-ITR networking cannot achieve dual-homing networking capabilities, and achieve the effects of disaster tolerance and load balancing, cost savings, and simplified configuration.

Active Publication Date: 2016-11-16
NEW H3C TECH CO LTD
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  • Abstract
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  • Claims
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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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  • LISP (Locator/Identity Separation Protocol) networking dual-homing realization method and device
  • LISP (Locator/Identity Separation Protocol) networking dual-homing realization method and device
  • LISP (Locator/Identity Separation Protocol) networking dual-homing realization method and device

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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 invention provides an LISP (Locator/Identity Separation Protocol) networking dual-homing realization method and device. The method comprises the steps that a first ITR (Ingress Tunnel Router) establishes a first sync message according to a first address mapping relationship, wherein the source IP address of the first sync message is a first ITR address corresponding to the first ITR, and the destination IP address of the first sync message is a second ITR address corresponding to a second ITR; and the first sync message is sent to the second ITR, so that the second ITR stores a first corresponding relationship between the first address mapping relationship and the first ITR address. According to the method and the device, when a virtual machine passes through various operators, a selection error generated when an NAT translates an operator address is avoided; the disaster tolerance capability and the load balance capability of LISP dual-homing networking are realized; moreover, the configuration in the device is simplified; and the cost for the dual-homing networking is reduced.

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 identifier) ​​and RLOC (Routing Locator, routing location identifier), where EID is used to identify hosts and does not have 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 LISP tunnel....

Claims

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Application Information

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Patent Type & Authority Applications(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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