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Author Topic: FTTC line syncing 8mb below attainable rate and no G.INP  (Read 1162 times)

andyinflitwick

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  • Posts: 6
Re: FTTC line syncing 8mb below attainable rate and no G.INP
« Reply #15 on: February 07, 2018, 01:53:27 PM »

Just thought i'd give you an update. I've not had much time to look into the details on this yet, but last night I swapped out my Draytek for a Zyxel router. Surprise, surprise! Sync is much improved and it's jumped to 53M/18M. I'm going to leave things alone for a couple of weeks and see what happens.

Thanks for your suggestions everyone  :cool:
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Ixel

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Re: FTTC line syncing 8mb below attainable rate and no G.INP
« Reply #16 on: February 07, 2018, 02:43:43 PM »

The DrayTek (Lantiq chipset) applies reed solomon coding (R) on the downstream even when it's fastpath. The Zyxel (Broadcom chipset) doesn't do this. This is why there's quite a bit of difference between the sync rate. This is also why Lantiq can have a lower rate of CRC errors/error seconds in some cases.
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