Merging Allwinner support

Merging Allwinner support

This sounds to me like an issue with the cable, not the NIC or switch.

In particular, there exist Cat 5 splitters which enable you to run two 10/100 connections over a single Cat 5 cable run (one example from a quick Google search). They're purely electrical, and you need two, one at each end. Each has two sockets: one is a pass-through for the two pairs a normal 10/100 Ethernet connection uses, and the other uses the other two pairs of a Cat 5 connection.

These are less than elegant, but in certain circumstances (no budget or time to do it properly, and particularly historically) they're not such a bad solution provided everyone involved is aware of their limitations.

I haven't come across anyone doing this actually in the cabling itself for networking, although I'm very sure people have tried it. I've seen people doing a similar one-pair-of-Cat-5-per-socket for digital telephony with Cat 5 wiring, and that's bad enough...