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description of data transmisstion |
→Description: plip encapsulation |
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transmistter detects toggle
When the transmistter detectes the toggle, this procedure is repeated for the next nibble.
Every IP packet is sent over the line by first encapsulating it into a plip packet, which is then sent using the above protocol. The encapsulated packet is as follows:
* packet lenght: 2 bytes, [[big endian]]
* ethernet header (mostly used for backward compatibility)
* the IP packet
* checksum: 1 byte, sum modulo 256 of bytes in the packet
The lenght and checksum are calculated over the second and third field only, so that for example the actual total lenght of the packet is three more than the lenght as reported in the packet.
==See also==
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