RE: [PATCH net-next] net: x25: Remove unimplemented X.25-over-LLC code stubs

From: David Laight
Date: Wed Dec 09 2020 - 16:27:00 EST


From: Xie He
> Sent: 09 December 2020 03:34
>
> According to the X.25 documentation, there was a plan to implement
> X.25-over-802.2-LLC. It never finished but left various code stubs in the
> X.25 code. At this time it is unlikely that it would ever finish so it
> may be better to remove those code stubs.

I always wondered about running Class 2 transport directly over LLC2
(rather than Class 4 over LLC1).
But the only LLC2 user was netbios - and microsoft's LLC2 was broken.
Not to mention the window probing needed to handle systems that
said they supported a window of (IIRC) 15 but would discard the
5th back to back frame.

David

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