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Author Topic: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support  (Read 269455 times)

j0hn

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #255 on: September 16, 2016, 10:07:39 PM »

the lantiq chipset inside doesn't support g.inp on the upstream. no firmware can remedy that.
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ejs

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #256 on: September 16, 2016, 10:18:14 PM »

If j0hn was referring to the ECI cabinet, that might be true.

If j0hn was referring to the ECI modem, that's not true.

And thus the eternal confusion between the capabilities of the ECI cabinets and modems continues.

Quote
"Is it a limitation of the ECI cabinets or modems?"
"Yes."
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jsamuel

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #257 on: September 16, 2016, 10:23:40 PM »

I was notified some time ago G.INP was working on both paths on a Huawei cab.
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GigabitEthernet

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #258 on: September 16, 2016, 10:29:28 PM »

I'll have to give it a test at some point. Be interesting to see how it deals with DS + US G.INP and vectoring (I'm one of the few) :)

Using TalkTalk's HG633 at present which gives essentially no stats at all, helpfully ::)

Older firmware  (on the HG633) was very weird with G.INP. it seemed to somewhat work in that the sync was not reduced like it was when I used a non-G.INP compatible modem but then with the storm last night, the sync then dropped 10Mb like it does on said non-compatible modems. Then DLM removed it all together this morning.

Got an update from TT today that fully supports it apparently so maybe it will get re-enabled tomorrow morning. Then I might try this again. I've got too sitting there gathering dust. I'm just looking for something to reduce my error counts a bit.

I've found the problem with G.INP at least on my line is that I get a lot of large latency bursts presumably because G.INP is running a lot of the time.

Edit: apologies for going off topic somewhat.
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ejs

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #259 on: September 17, 2016, 06:40:10 AM »

Lantiq VDSL2 firmware versions that end in 6 do not support vectoring. So the 5.7.4.3.0.6 firmware contained in these OpenWRT images does not support vectoring.

Firmware versions that end in 7 do support vectoring. 5.7.4.3.0.7 can be extracted from the TP-Link VR200 firmware, or newer firmware versions could be extracted from FritzBox firmware or even the Netgear DM200. The FritzBox Lantiq DSL .bin files appear to be slightly customised specially for FritzBox.
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GigabitEthernet

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #260 on: September 17, 2016, 11:14:36 AM »

Completely beyond me I'm afraid :(
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ejs

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #261 on: September 17, 2016, 12:03:44 PM »

I hope this is clearer then: the current OpenWRT images do not support vectoring.
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GigabitEthernet

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #262 on: September 17, 2016, 01:18:55 PM »

I hope this is clearer then: the current OpenWRT images do not support vectoring.

I meant, how would one go about fixing the images to support vectoring.
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ejs

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #263 on: September 17, 2016, 03:11:21 PM »

I think OpenWRT has a writable filesystem, so you should be able to replace the vdsl.bin file by copying a new file onto the device using sftp.
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GigabitEthernet

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #264 on: September 17, 2016, 03:14:37 PM »

Ah, I can do that! :)
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j0hn

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #265 on: September 17, 2016, 03:27:02 PM »

If j0hn was referring to the ECI cabinet, that might be true.

If j0hn was referring to the ECI modem, that's not true.

And thus the eternal confusion between the capabilities of the ECI cabinets and modems continues.
I was half asleep in bed, but in all honesty I thought that was the case for both. Shouldn't surprise me that OpenReach provide CPE that supports technology the DSLAM doesn't. Does the ECI V41 support upstream G.INP?
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ejs

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #266 on: September 17, 2016, 03:39:11 PM »

How is anyone going to know if the ECI V41 supports upstream G.INP? I'd guess that as it apparently uses the same line cards as the M41 and other ECI things, it would have the same limitations regarding G.INP.

If BT are somehow unaware that support for upstream retransmission was added in Lantiq VDSL2 firmware versions >= 5.7.X.X.X.X, that would explain why the BT HomeHub 5A and the ECI modems never seemed to get a firmware update for it.
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GigabitEthernet

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #267 on: September 17, 2016, 04:11:00 PM »

Where would I find a new vdsl.bin file? :)
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ejs

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #268 on: September 17, 2016, 04:26:54 PM »

There are instructions on how to extract the firmware from various other devices' firmware on http://xdarklight.github.io/lantiq-xdsl-firmware-info/
I don't think the vectoring firmwares can be legally redistributed, as it says at the bottom of that page.

The 5.8.1.5.0.7 firmware can also be found within the Netgear GPL source code released for the DM200. I don't think anyone has actually confirmed if that firmware works on the VRX268 (the DM200 uses the newer VRX220 chip).
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GigabitEthernet

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Re: OpenWrt (Chaos Calmer r46559) for ECI/r v1 & v2 - Update: G.INP/ReTX Support
« Reply #269 on: September 17, 2016, 04:30:23 PM »

5.8.1.5.0.7-5.8.0.9.0.1 - it says the IDSN version includes vectoring support?
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