Method and device for interception of data transiting on a link in an Ethernet network

1 . Real time interception method for data transported on several links in an Ethernet network, comprising:

a simultaneous tapping step for data transferred on transmission and/or reception lines of each of these links using couplers,

a step to copy, amplify and send these data to at least one test equipment.

2 . Method according to claim 1 , which makes use of one interception device, or several interception devices in cascade.

3 . Method according to claim 1 , in which the Ethernet network is an AFDX 10 or 100 Mbits/s network.

4 . Method according to claim 1 , in which the links are <<full duplex>> links.

5 . Method according to claim 1 , in which couplers are high impedance transformers.

6 . Method according to claim 1 , in which each transceiver is a four-port transceiver.

7 . Method according to claim 1 , in which the test equipment is a flight test installation.

8 . Real time interception device for data transported on several links in an Ethernet network, which comprises:

means of tapping these data comprising a coupler on each line of each link,

means of copying, amplifying and sending these data to at least one test equipment.

9 . Device according to claim 8 , which comprises one interception device or several interception devices in cascade.

10 . Device according to claim 8 , in which the Ethernet network is an AFDX 10 or 100 Mbits/s network.

11 . Device according to claim 8 , in which the links are <<full duplex>> links.

12 . Device according to claim 8 , in which couplers are high impedance transformers.

13 . Device according to claim 8 , in which each transceiver is a four-port transceiver.

14 . Device according to claim 8 , in which the test equipment is a flight test installation.