Methods and devices for communicating diagnosis data in a real time communication network
View Patent ↗Methods and devices for non-intrusive identification and communication between a server node and at least one client node in a communication network. An identification message is first transmitted to at least one client node, the identification message including at the application level a duplicate of the addressing data, the physical address and the internet address of the server node, also contained in the MAC and IP layers. The reception of at least one couple of addresses from at least one client node, wherein a couple of addresses from a client node includes a physical address and an internet address according to the same duplication strategy, can be used for identifying the client node by the server. Similarly, the methods and devices can be used for identifying in a client node at least one server node in the network.
1. A method for identification, in a server node connected to a network, of at least one client node connected to the network, comprising:
transmitting an identification message to the at least one client node, the identification message comprising a physical address and an Internet address of the server node contained in an application data portion of the identification message;
receiving at least one message containing a pair of addresses of the at least one client node in response to the transmitting the identification message, the pair of addresses comprising a physical address and an Internet address, being explicitly duplicated in the application data portion of the received message; and
static storing of the pair of addresses contained in the application data portion of the received message in an Address Resolution Protocol (ARP) buffer in the server node, such that the pair of addresses is positioned as a permanent input to the ARP buffer prior to any diagnostic message transmission by the server node and without sending and receiving any ARP type messages.
2. A method for identification according to claim 1 , wherein transmission of the identification message is carried out in a multicast mode.
3. A method according to claim 1 , according to which fragmentation of the exchanged messages is carried out at a message layer.
4. A method according to claim 1 , implementing UDP communication protocol and POSIX programming layer.
5. A non-transitory computer readable medium comprising computer executable instructions adapted for implementation of the method according to claim 1 .
6. A method according to claim 1 , further including exchange of diagnostic data in the network between the at least one client node of the network and a diagnostic terminal connected to the network, the method further comprising:
transmitting a diagnostic command to the said at least one client node of the network.
7. A method according to claim 6 , according to which fragmentation of the exchanged messages is carried out at a message layer.
8. A method according to claim 6 , implementing UDP communication protocol and POSIX programming layer.
9. A non-transitory computer readable medium comprising computer executable instructions adapted for implementation of the method according to claim 6 .
10. A method for identification, in a client node connected to a network, of a server node connected to the network, comprising:
receiving an identification message originating from the server node, the identification message comprising a physical address and an Internet address of the server node contained in an application data portion of the identification message;
static storing of the physical and Internet addresses of the server node contained in the application data portion of the received message in an Address Resolution Protocol (ARP) buffer in the client node, such that the pair of addresses is positioned as a permanent input to the ARP buffer prior to any diagnostic message transmission by the client node and without sending and receiving any ARP type messages; and
transmitting to the server node a message containing a pair of addresses of the client node in response to the receiving the identification message, the pair of addresses of the client node, comprising a physical address and an Internet address of the client node, being explicitly duplicated in the application data portion of the transmitted message.
11. A method according to claim 10 , wherein the diagnostic and simulation data management tasks use different specific ports.
12. A method according to claim 11 , wherein the diagnostic and simulation data management tasks use different specific ports.
13. A method according to claim 10 , implementing UDP communication protocol and POSIX programming layer.
14. A non-transitory computer readable medium comprising computer executable instructions adapted for implementation of the method according to claim 10 .
15. A method according to claim 10 , further including exchange of diagnostic data, in the client node connected to a network, the method comprising:
activating a diagnostic data management task upon reception of a diagnostic command according to the state of activation of a simulation data management task.
16. A server node connected to a network, wherein at least one client node is connected to the network, comprising:
a transmitter configured to transmit an identification message to the at least one client node, the identification message comprising a physical address and an Internet address of the server node contained in an application data portion of the identification message;
a receiver configured to receive at least one message containing a pair of addresses of the at least one client node in response to the transmission the identification message, the pair of addresses comprising a physical address and an Internet address, being explicitly duplicated in the application data portion of the received message; and
an Address Resolution Protocol (ARP) buffer configured to statically store the pair of addresses contained in the application data portion of the received message, such that the pair of addresses is positioned as a permanent input to the ARP buffer prior to any diagnostic message transmission by the server node and without sending and receiving any ARP type messages.