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Context identification negotiation method, and client used for OAA
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A server and client technology, applied in the field of communication, can solve problems such as exceptions, and achieve the effect of avoiding exception handling
Active Publication Date: 2011-09-28
NEW H3C TECH CO LTD
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If the server interface attribute that affects the Context ID changes, the Context ID will change, but at this time the connection between the two ends is normal, and the Context ID will not be renegotiated. In this case, an exception will occur during data flow processing.
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Embodiment 1
[0031] The server notifies the client that the interface attribute of the server interface has changed by sending a protocol packet to the client, so that the client actively requests to negotiate the Context ID.
[0032] An implementation manner of implementing the server interface attribute change notification message is introduced below.
[0033] see image 3 , the interface attribute change notification message sent by the server can be sent by image 3 The standard ACSEI protocol message shown is realized. Among them, the fields included in the message protocol header are:
[0034] VER occupies 4 bits, indicating the protocol version number, currently 1, indicating version 1.
[0035] RES1 occupies 3 bits, reserved and useless for the time being.
[0036] C / S occupies 1 bit, 0 means it is a message from ACFP Client, and 1 means it is a message from ACFP Server.
[0057] The following describes how this embodiment actively negotiates with the server for a new Context ID according to the interface attribute notification message sent by the server:
[0058] see Figure 5 , Figure 5 It is a flow chart of the context identification negotiation in the second embodiment. The specific steps are:
[0059] In step 501, the client receives the SNMP message sent by the server, and the message carries the interface attribute of the server interface and the corresponding interface index.
[0060] In this step, the client can set the timed acquisition, and the user can set the time to acquire the interface properties according to the actual situation. SNMP is used for network management. The SNMP message sent by the server to the client will carry the interface index and interface attributes of the server interface.
[0061] Step 502, judge according to the interface index of the server interface whether the obtained interface attribute is consi...
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Abstract
The invention discloses a context identification negotiation method used for OAA (Open Application Architecture). The method comprises: when the client knows the interface attribute change of a server interface, the client actively initiates a context identification negotiation request to the server; after the context identification negotiation request is received by the server, the server responds to the client about the negotiation result of carrying new context identification. Based on the same invention conception, the invention also discloses a server and a client which are able to help avoid abnormal processing of data flows.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a context identifier negotiation method, server and client for Open Application Architecture (OAA). Background technique [0002] In today's network world, the requirements for network equipment are not only the data forwarding capabilities provided by traditional routers and switches, but also require network equipment to support various applications. However, it is difficult for any independent technology vendor to provide all the services required by customers at the same time. And an open structure - OAA, can integrate equipment and software produced by many different manufacturers together, work like a single equipment, provide customers with integrated solutions, and become a rising star in network development. [0003] see figure 1 , figure 1 It is the basic architecture diagram of OAA. Such as figure 1 As shown, the OAA system can be divided into three parts: ...
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