Difference between Segment Mode & Packet Mode Data Trans

[anunay]

Hi all,

I am working on Interlaken protocol which works on Segment as well as Packet mode data transmission but the specs don't clearly state the difference between the two.

It would be of great help if difference b/w the two is clarified by the forum members.

Thanks in advance

 

[skyfaye]

Re: Difference between Segment Mode & Packet Mode Data T

For Interlaken, segment mode means that packets with different channel may be interleaved. Interlaken supports up to 256 logical channels and depending on the setting, each packet will be broken up into 1 or more segments.

If you have 2 packets, P1 follow by P2, that is schedule to go to channel 1 & 2, respectively. Both P1/P2 will be broken into 1 or more segments. In packet mode, all segments of P1 will be completely sent before the segments of P2. However, in segment mode, the segments of P2 can be transmitted before P1 is completely sent.

The transmitter will change the channel info to indicate which channel this segment belongs to so that the receiver can rebuild the packet.

Packet Mode: P1.a <-- P1.b <-- P2.a <-- P2.b
Segment Mode: P1.a <-- P2.a <-- P2.b <-- P1.b

- Hung