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Multicast flow forwarding implementation method and routing bridge (RB)

An implementation method and technology of multicast flow, applied in the field of network communication, can solve the problem that multicast flow forwarding is greatly affected, and achieve the effect of high reliability access

Active Publication Date: 2013-03-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a multicast flow forwarding implementation method and routing bridge (RB), to solve the problem that the multicast flow forwarding is greatly affected when a fault occurs

Method used

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  • Multicast flow forwarding implementation method and routing bridge (RB)
  • Multicast flow forwarding implementation method and routing bridge (RB)
  • Multicast flow forwarding implementation method and routing bridge (RB)

Examples

Experimental program
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Embodiment 1

[0024] Such as figure 2 As shown, in Embodiment 1 of the present invention, the method for implementing multicast flow forwarding, each routing bridge (RB) forwards the received uplink or downlink multicast flow according to the distribution information of the multicast tree, and in the distribution information of the multicast tree, The multicast tree is allocated respectively according to the uplink direction and the downlink direction. Specifically, the method includes:

[0025] Step 201: The routing bridge (RB) obtains and stores the distribution information of the multicast tree of the routing bridge group (RBv), and the multicast tree in the distribution information of the multicast tree is allocated according to the uplink direction and the downlink direction respectively ;

[0026] The allocation information of the multicast tree can be specifically generated in a configuration manner or obtained by each routing bridge based on the same allocation algorithm, preferab...

Embodiment 2

[0037] like image 3 As shown, in Embodiment 2 of the present invention, the multicast flow forwarding implementation method, each routing bridge (RB) forwards the received uplink or downlink multicast flow according to the distribution information of the multicast tree, and in the distribution information of the multicast tree The multicast tree is allocated according to the uplink direction and downlink direction, specifically, including:

[0038] Step 301: The routing bridge (RB) obtains and stores the distribution information of the multicast tree of the routing bridge group (RBv), and the multicast tree in the distribution information of the multicast tree is allocated according to the uplink direction and the downlink direction respectively , and the multicast tree is distributed in each link aggregation group (LAG) or local area network (Local Area Network, LAN) in the downlink direction;

[0039] For example, if there are 6 multicast trees and 3 LAGs, then 6 multicast...

Embodiment 3

[0051] Embodiment 3 of the present invention focuses on the forwarding of the multicast flow in the downlink direction. Each routing bridge (RB) forwards the received uplink or downlink multicast flow according to the distribution information of the multicast tree. In the distribution information of the multicast tree The multicast tree is allocated according to the uplink direction and downlink direction, specifically, as Figure 4 As shown, the implementation methods of multicast stream forwarding include:

[0052] Step 401: The routing bridge (RB) obtains and stores the distribution information of the multicast tree of the routing bridge group (RBv) in the downlink direction, and the multicast tree is in each link aggregation group (LAG) or local area network in the downlink direction Assigned in (LAN), the routing bridge (RB) assigned by a multicast tree in the downlink direction includes a main forwarding device and a backup forwarding device;

[0053] The allocation inf...

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Abstract

The invention relates to a multicast flow forwarding implementation method and a routing bridge (RB). Each RB forwards a received uplink or downlink multicast flow according to the distribution information of a multicast tree; and the multicast trees in the distribution information of the multicast trees are respectively distributed according to an uplink direction and a downlink direction. When the downlink direction fails, multicast flow forwarding in the uplink direction cannot be influenced.

Description

technical field [0001] The invention relates to network communication technology, more specifically, a multicast flow forwarding realization method and a routing bridge (RB). Background technique [0002] TRILL is the English abbreviation of Transparent Interconnection over Lots of Links, which is used to solve the multipath (or L2MP (Layer 2 Multiple Path)) problem in the large Layer 2 network of the data center. The L2MP is realized by introducing the IS-IS (Intermediate System to Intermediate System, Intermediate System to Intermediate System) routing protocol into the Layer 2 network. In a TRILL network, a device running the TRILL protocol is called an RBridge (routing bridge, also referred to as "RB" hereinafter), and a Nickname (alias) uniquely identifies an RBridge. At the entrance of the TRILL network, it is responsible for encapsulating the original data frame of the end device (End Station) into TRILL format (that is, adding a TRILL header and an external frame he...

Claims

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Application Information

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IPC IPC(8): H04L12/761H04L12/703H04L45/16H04L45/28
CPCH04L12/4625
Inventor 翟洪军代雪会廖婷
Owner ZTE CORP
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