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A lisp-based multicast implementation method and device

An implementation method and multicast technology, applied in the field of communication, can solve the problems of unable to know the multicast source, unable to realize the LISP multicast function, etc.

Active Publication Date: 2017-08-22
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for figure 2 As shown in the networking diagram of the LISP network, when multiple LISP networks form a PIM SM (Protocol Independent Multicast-Sparse Mode, sparse mode protocol-independent multicast) domain, ITR / ETR will not be able to learn the (EID, RLOC) mapping relationship, and then the LISP multicast function cannot be realized

Method used

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  • A lisp-based multicast implementation method and device
  • A lisp-based multicast implementation method and device
  • A lisp-based multicast implementation method and device

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Embodiment Construction

[0044] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a method for realizing multicast based on LISP, which is applied in a network including MS (Map Server, mapping server) and multiple tunnel routers, and the tunnel router can be Tunnel ingress router ITR and tunnel egress router ETR. by figure 2 Be the application scenario schematic diagram of the embodiment of the present invention, a plurality of LISP networks (being LISP network A and LISP network B) form a PIM SM domain, tunnel router is ITR1, ITR2, ETR1 and ETR2, and multicast source is positioned at LISP network A, The receiver is located within LISP network B. The ITR in the LISP network A is connected to the MS through an MR (Map Resolver), and the ETR in the LISP network B is directly connected to the MS. In addition, C-BSR1 (Candidate-BSR, candidate BSR), C-BSR2, and C-BSR3 have the same priority, and their IP addresses are 1.0.0.1 / 24, 2.2.0.1 / 24, and 2.2.0.2 / ...

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Abstract

The invention discloses a LISP-based multicast realization method and equipment, the method comprising: after enabling the BSR proxy function, the tunnel router sends a registration message to the MS, and the registration message carries the BSR enabled tunnel router The information of the proxy function; when the tunnel router receives the first self-report message, it sends the first self-report message to the MS; the tunnel router receives the second message from other tunnel routers forwarded by the MS. A self-report message, using the address information carried in the second self-report message to generate a first (EID, RLOC) mapping table. In the embodiment of the present invention, the transmission of the PIM SM protocol message across the LISP network can be realized, the LISP multicast function can be realized under the condition that the ITR / ETR does not know the multicast source address, and the LISP network can be effectively supported.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a LISP-based multicast realization method and equipment. Background technique [0002] Such as 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 into the LISP network. The EID is used to identify the host and 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 an ITR (Ingress Tunnel Router, tunnel entry router) / ETR (Egress Tunnel Router, tunnel exit router). The LISP network includes a data plane and a control plane. The data plane i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/761H04L45/16
Inventor 乔辉林鹏程
Owner NEW H3C TECH CO LTD
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