Method for retransmitting data frame by data retransmitting entity

A technology for forwarding entities and data frames, which is applied in the field of communication and can solve the problem that DRE cannot have both V-Switch functions.

Active Publication Date: 2008-03-26
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] The present invention provides a method for DRE forwarding data frames to solve the problem that DRE in the prior art cannot have both V-Switch function and existing Ethernet function to realize data frame forwarding

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  • Method for retransmitting data frame by data retransmitting entity

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Embodiment Construction

[0048]V-Switch technology is very suitable for carrying unicast and point-to-point services, but it is difficult to carry multicast, broadcast and multipoint-to-multipoint services. However, the existing Ethernet technology is based on MAC address learning and forwarding, and is relatively mature in carrying multicast, broadcast, and multipoint-to-multipoint services.

[0049] Therefore, the present invention proposes a method for the coexistence of the V-Switch function of the DRE device and the existing Ethernet function. The two technologies can be mixed in a network, and different services can be carried according to the advantages of the two technologies. Therefore, on the premise of maintaining the simplicity of V-Switch technology, the problem of carrying services such as multicast, broadcast, and point-to-multipoint in actual networking is solved.

[0050] For this reason, the present invention enables the interface of the V-Switch function of the DRE to work in two m...

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Abstract

Being applicable to Ethernet, the disclosed method for forwarding data frame through data retransmission entity (DRE) includes following procedures: using one or more interfaces of DRE to enable function of virtual Switch (V-Switch); configuring work mode for one or more interfaces of DRE of enabling V-Switch function as share mode between V-Switch and Ethernet; setting up decision strategy for using V-Switch function to forward received data frame under share mode; when DRE interface configured in share mode receives data frame, if tag information carried by data frame is matched to the decision strategy, then forwarding the data frame by using retransmission flow corresponding to V-Switch function; otherwise retransmission flow corresponding to Ethernet function is utilized. The invention makes DRE equipment possess both functions of V-Switch and Ethernet in order to solve load-supporting issues in multicast, broadcast, and point-to-point operations.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for forwarding received data frames by a Date Relay Entity (DRE) in an Ethernet network. Background technique [0002] With the continuous increase of Internet scale, various network service businesses have appeared. Such as broadband multimedia services, including: video / audio (Video / Audio) streaming, video on demand (Video On Demand, VOD), video multicast, multimedia interaction, online games with high bandwidth requirements, etc., to provide users with video conferencing and distance education , virtual private network (VPN), data dedicated line with QoS guarantee, hotel IP access service (IP Hotel), etc., have become important contents of broadband operation. [0003] Because multimedia services need to occupy a large amount of bandwidth, it is difficult to obtain reliable transmission of key services to be guaranteed in the existing network. Therefore, various Quality of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56
CPCH04L49/351H04L49/354H04L12/4645H04L49/30H04L49/70
Inventor 范灵源子康
Owner HUAWEI TECH CO LTD
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