Method for multicast transmission of information in forwarding and controlling separation network wares
A technology for separating network and control components, applied in the field of network components
Inactive Publication Date: 2011-07-27
ZHEJIANG GONGSHANG UNIVERSITY
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Problems solved by technology
[0015] The purpose of the present invention is to solve unresolved problems in the prior art, solve the forwarding and control transmission problem of the ForCES protocol in the separated network parts currently faced by the IETF ForCES standard formulation working group, so as to promote the corresponding standard formulation work
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[0071] In conjunction with the accompanying drawings, the technical solution of the present invention is further described, and a specific implementation of the method of the present invention is given.
[0072] Such as image 3 As shown, the present embodiment uses the IXP2400 network processor (including necessary peripheral circuits) produced by Intel Corporation to form the forwarding piece, and uses a PC computer to form the control piece. There are two control pieces with two labels respectively 1 and 2 and three labels respectively. A ForCES network piece is formed for the forwarding pieces of 10, 11 and 12. The forwarding piece has multiple network interfaces connected to the external network. The forwarding piece and the control piece are connected to each other through an Ethernet switch through an Ethernet interface to realize mutual communication.
[0073] Both the forwarding piece and the control piece use the TCP / UDP transmission mapping unit, that is, the ForCES...
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The invention relates to network ware technology, which aims to provide a method for multicast transmission of information in forwarding and controlling separation network wares, and relates to a method for achieving the multicast transmission of ForCES protocol messages by one control component to a plurality of forwarding components or one forwarding component to a plurality of control components in protocol units of the forwarding component and the control component. The protocol units form a multicast list; the multicast list is transmitted to a transmission mapping unit; the protocol unit transmits the multicast list to all member protocol units participating in the multicast unit; the transmission mapping unit establishes the mapping relation between a multicast number of the multicast list and an actual transmission address of the transmission mapping unit according to the multicast list and existing information; and when the transmission mapping unit receives a message requiring to perform multicast transmission by the multicast number, the message is transmitted to all members required by the multicast. The method is free from additionally defining other information exchange protocols in ForCES network wares such as information exchange protocols between the transmission mapping units.
Description
technical field [0001] The invention relates to technologies of network components (such as routers, gateways, switches, etc.), in particular to a method for separating forwarding and controlling information multicast transmission in network components. Background technique [0002] With the rapid expansion of computer network applications such as the Internet, new features and new requirements are constantly emerging and changing, which requires that the new generation of network equipment should be flexible enough to quickly respond to new services and new requirements; It is required that the new generation of network equipment should have enough openness, so that users can flexibly combine according to the open resources to provide different network demand services; it is required that the new generation of network equipment should have sufficient modularity and be standardized through standardization organizations , so that each module can be independently researched an...
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IPC IPC(8): H04L12/18H04L12/56H04L29/06H04L45/16
Inventor 王伟明
Owner ZHEJIANG GONGSHANG UNIVERSITY