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The UKHA-ARCHIVE IS CEASING OPERATIONS 31 DEC 2024

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Re: Xap and serial



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Hi Guys,
Sorry to wade in to the conversation late. As Kevin hints, this situation
was anticipated when the original xAP spec was written, and the intention
was that the bridge should filter between networks using the source, target
and class elements of the header as criteria.

In my own implementation, I have also re-written packets at the bridge,
discarding stuff that I knew was not of interest on the slower network.

The implementation of flow control in a multi-sender, multi-receiver
environment is fraught with difficulties, and also has the potential to
impact the responsiveness of devices. Flow controlling a device which
relays
light-switching requests, for example would be highly undesirable. You can
work around these problems, but doing so is going to significantly increase
the complexity of xAP and would also raise the bar in terms of processing
and memory requirements for network members.

Patrick

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Hi Guys,<br>
Sorry to wade in to the conversation late. As Kevin hints, this
situation was anticipated when the original xAP spec was written, and
the intention was that the bridge should filter between networks using
the source, target and class elements of the header as criteria.<br>
<br>
In my own implementation, I have also re-written packets at the bridge,
discarding stuff that I knew was not of interest on the slower
network.<br>
<br>
The implementation of flow control in a multi-sender, multi-receiver
environment is fraught with difficulties, and also has the potential to
impact the responsiveness of devices. Flow controlling a device which
relays light-switching requests, for example would be highly
undesirable. You can work around these problems, but doing so is going
to significantly increase the complexity of xAP and would also raise
the bar in terms of processing and memory requirements for network
members.<br>
<br>
Patrick<br>
<br>

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