Data unit transmission method and device
A technology of data unit and data field, applied in the direction of digital transmission system, transmission system, data exchange network, etc., can solve problems such as complex control situation
Inactive Publication Date: 2006-04-12
TELEFON AB LM ERICSSON (PUBL)
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Well understood, this leads to complex control situations within each individual network and within the network as a whole
Method used
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[0032] Adding new data field 332 to a data unit may be accomplished in any suitable or desired manner. For example, a given communication protocol may be modified in the following manner: an additional field of the above-mentioned type is defined at an appropriate position in a data unit of the modified communication protocol. Note, however, that it is not necessary to redefine the protocol in order to implement the concepts of the present invention, since it is equally possible to adapt the network entities applying the present invention to utilize unspecified reserved parts of the underlying communication protocol in data units. If the latter implementation is chosen, only network entities compliant with the invention will see the appropriate parts of the data unit, while compatibility with network entities not compliant with the invention is preserved, since these do not use the newly defined fields. However, it is preferable to indeed adapt a given communication protocol t...
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A method of controlling a transmission of data units arranged in accordance with a predetermined communication protocol over a plurality of network entities, said network entities operating according to said predetermined communication protocol, from a sending network entity to a receiving network entity over one or more forwarding network entities, comprising providing in a data unit a first data field arranged to contain network entity identification information, said first data field being different from a forwarding data field designated by said communication protocol to contain information to be used by forwarding network entities for forwarding said data unit to the receiving network entity, said first data field being defined such that a given network entity that reads the first data field can at least make a decision on the basis thereof whether said given network entity is identified or not, and in said one or more forwarding network entities, performing a data unit processing operation after receiving said data unit, which comprises reading said first data field and making an identification decision on the basis thereof whether the forwarding network entity performing said data unit processing operation is identified or not.
Description
field of invention [0001] The invention relates to a control method for the transmission of data units arranged according to a predetermined communication protocol from a sending network entity to a receiving network entity via at least one forwarding network entity, and also to corresponding network entities and methods for controlling these network entities. Background of the invention [0002] In the field of data communications, it is well known that data is transmitted from a sender to a receiver in the form of data units; where each data unit contains some form of appropriate information that enables a forwarding network entity to direct or route the data unit to its The final destination, the recipient. for this will pass figure 1 Give a brief explanation. figure 1 A communication network 2 and communication devices 10-14 that can access the network 2 are shown. Network 2 is shown comprising a number of forwarding entities 21-25. Notice figure 1 The content shown...
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IPC IPC(8): H04L29/06H04L12/56H04L12/801
CPCH04L29/0653H04L47/35H04L29/06013H04L47/10H04L69/03H04L69/22H04L29/06H04L9/40
Inventor H·埃克斯特伦H·维曼J·萨赫斯
Owner TELEFON AB LM ERICSSON (PUBL)