Unicast data frame transmission method and device

A technology for unicast data and frame transmission, applied in the field of communication, can solve problems such as message out-of-order, message discarding, retransmission network delay time, etc., to solve message out-of-order or even retransmission, solve bandwidth waste, improve The effect of network bandwidth utilization

Active Publication Date: 2011-05-25
ZTE CORP
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the network delay time of Net2 is greater than that of Net1, the following data frames reach H6 first, causing packets to be out of order or even retransmitted (the difference between the network delay time between Net2 and Net1

Method used

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  • Unicast data frame transmission method and device
  • Unicast data frame transmission method and device
  • Unicast data frame transmission method and device

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Embodiment Construction

[0020] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0021] figure 2 It is a flow chart of a method for transmitting a unicast data frame according to an embodiment of the present invention. Such as figure 2 As shown, the unicast data frame transmission method according to the embodiment of the present invention includes:

[0022] Step S202, performing TRILL encapsulation on the unicast data frame, adding path mapping information and / or path mapping policy in the TRILL header, and transmitting the encapsulated unicast data frame;

[0023] Step S204, during the transmission process, parse the TRILL header, complete the forwarding path mapping through the first predetermined algorithm according to the path mapping information, or directly complete t...

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Abstract

The invention discloses a unicast data frame transmission method and a unicast data frame transmission device. The method comprises the following steps of: performing transparent interconnection over lots of links (TRILL) package on a unicast data frame, adding path mapping information and/or a path mapping strategy in a TRILL header, and transmitting the packaged unicast data frame; in the transmission process, analyzing the TRILL header, finishing forwarding path mapping through a first preset algorithm according to the path mapping information, or directly finishing the forwarding path mapping according to the path mapping strategy; and packaging and forwarding the unicast data frame by using the forwarding path acquired through mapping. Due to the provided technical scheme, the problems of bandwidth waste and disordered messages and even retransmission are solved, and the effects of mapping the forwarding path and sharing the network load among various paths and improving the network bandwidth utilization rate are achieved.

Description

technical field [0001] The present invention relates to the field of communication, in particular to a method and device for transmitting unicast data frames. Background technique [0002] TRILL (Transparent Interconnection over Lots of Links) is a connection layer (L2) network standard recommended by IETF (Internet Engineering Task Force), used to solve STP (Spanning Tree protocol, Spanning Tree Protocol) in large data centers lack of. In the L2 network, STP avoids loops by blocking redundant links, but at the same time, it also causes waste of redundant link bandwidth (blocked). TRILL solves the L2 loop problem by introducing the IS-IS (Intermediate System to Intermediate System) routing protocol into the L2 network, while retaining the L2 multipath (or called ECMP, Equivalent Cost Multiple Path, equal cost multipath). [0003] In a TRILL network, a device running the TRILL protocol is called a routing bridge (RBridge). At the entrance of the TRILL network, it is respon...

Claims

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Application Information

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IPC IPC(8): H04L12/56
CPCH04L29/06183H04L65/10H04L12/569H04L45/66H04L45/24H04L12/2861H04L12/462H04L12/4633H04L12/4641H04L69/22
Inventor 翟洪军赵静静成明江吕二春
Owner ZTE CORP
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