Re: [LEDE-DEV] TDR / VeriPHY

[Florian Fainelli]

On January 17, 2018 6:06:54 PM PST, "Denis Periša"  wrote:
>Hi all,
>
>I've searched three days in a row and I cannot find any more info on
>software cable tester for linux/openwrt.
>
>Many my devices support this feature as in original firmware (Mikrotik
>for example) I can see cable pairs and which cable wire is not
>connected and such. Even length of the cable. Airlive devices have as
>low as 2mb firmware space and they have this included in web gui.
>
>How come none openwrt/lede is capable of doing this? too hardware
>specific or?

Yes, too hardware specific, and most often no reference code and documentation 
to implement it. TDR in the PHY products that I am familiar with require a ton 
of register reads and writes. Do you know what kind of PHYs they use? Most PHYs 
have a simple cable diagnostics register set which give you basic stuff: 
length, pair status etc. doing actual TDR is more complicated and involved.
Let
-- 
Florian

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[LEDE-DEV] TDR / VeriPHY

[Denis Periša]

Hi all,

I've searched three days in a row and I cannot find any more info on
software cable tester for linux/openwrt.

Many my devices support this feature as in original firmware (Mikrotik
for example) I can see cable pairs and which cable wire is not
connected and such. Even length of the cable. Airlive devices have as
low as 2mb firmware space and they have this included in web gui.

How come none openwrt/lede is capable of doing this? too hardware specific or?

Thank you.

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