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belowzero273
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cable length test

Fri Sep 20, 2013 1:30 pm

I've got mikrotik rb951g-2hnd, firmware is updated, routeros 6.4
There's a feature in wiki - cable-test. It is described like this:
[admin@CCR] > interface ethernet cable-test ether1
         name: ether1
       status: no-link
  cable-pairs: open:4,open:4,open:4,open:4
But as I run similar command on my device, I get:
[admin@MikroTik] > interface ethernet cable-test 1
    name: eth02_lan
  status: link-ok
-- [Q quit|D dump|C-z pause]
Why can't I see more detailed info?
 
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asaleh75
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Re: cable length test

Fri Sep 20, 2013 10:24 pm

Hi,
I am getting same as you.
 
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asaleh75
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Re: cable length test

Fri Sep 20, 2013 10:26 pm

Hi,
I am getting same as you.
But
interface ethernet cable-test ether1
is working fine.
 
belowzero273
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Re: cable length test

Fri Sep 20, 2013 11:09 pm

I've tried to call it by name - same thing.
[admin@MikroTik] > interface print                                       
Flags: D - dynamic, X - disabled, R - running, S - slave 
 #     NAME                             TYPE         MTU L2MTU  MAX-L2MTU
 0  R  eth01_internet			ether       1500  1598       4074
 1   S eth02_lan			ether       1500  1598       4074
 2  RS eth03_lan			ether       1500  1598       4074
 3  RS eth04_lan			ether       1500  1598       4074
 4  RS eth05_lan			ether       1500  1598       4074
 5  RS ;;; Wireless
       wlan1				wlan        1500  2290
 6  R  bridge-local			bridge      1500  1598

[admin@MikroTik] > interface ethernet cable-test eth01_internet
    name: eth01_internet
  status: link-ok
-- [Q quit|D dump|C-z pause]


Am I missing something?
 
JackANSI
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Re: cable length test

Sat Sep 21, 2013 6:10 pm

I've tried to call it by name - same thing.
[admin@MikroTik] > interface print                                       
Flags: D - dynamic, X - disabled, R - running, S - slave 
 #     NAME                             TYPE         MTU L2MTU  MAX-L2MTU
 0  R  eth01_internet			ether       1500  1598       4074
 1   S eth02_lan			ether       1500  1598       4074
 2  RS eth03_lan			ether       1500  1598       4074
 3  RS eth04_lan			ether       1500  1598       4074
 4  RS eth05_lan			ether       1500  1598       4074
 5  RS ;;; Wireless
       wlan1				wlan        1500  2290
 6  R  bridge-local			bridge      1500  1598

[admin@MikroTik] > interface ethernet cable-test eth01_internet
    name: eth01_internet
  status: link-ok
-- [Q quit|D dump|C-z pause]


Am I missing something?

I'm guessing they removed the more complete testing facility on low price hardware to shave cost (or its not supported in the cheap switch chips they use). My 951g-2hnd reports the same as yours, as well as my RB2011. If you notice, the login prompt next to the more thorough report says admin@CCR ("top" of the line).
 
belowzero273
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Re: cable length test

Sat Sep 21, 2013 8:00 pm

I think vendor might describe this limitation in wiki.
 
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payday
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Re: cable length test

Sat Sep 21, 2013 10:42 pm

It works only if there is no link. Run this command, disconnect cable and you will see the difference in output.
 
belowzero273
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Re: cable length test

Sun Sep 22, 2013 12:10 am

Well, it changes to
  status: no-link
But still no signs of cable length.
This is really strange, since even basic modern integrated NIC can diagnose broken pairs, cable length and so on.
 
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payday
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Re: cable length test

Sun Sep 22, 2013 3:07 am

According to: http://wiki.mikrotik.com/wiki/Manual:Sw ... p_Features
"Atheros8327 is present on RB2011 series(ether1-ether5+sfp1) RB750GL, RB751G-2HnD, RB951G-2HnD and RB1100AH, RB1100AHx2(ether1-ether5, ether6-ether10)."

Your device RB951G-2HnD has the same switch chip as the one I've tested (RB2011UAS-2HnD), so this function should work. Report it to: support@mikrotik.com
 
belowzero273
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Re: cable length test

Tue Sep 24, 2013 3:03 pm

I've got a reply from techsupport - they are going to fix this in next RouterOS release.
 
JackANSI
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Re: cable length test

Mon Oct 21, 2013 9:01 pm

Wasn't fixed in latest ROS release... big surprise...
 
belowzero273
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Re: cable length test

Tue Oct 22, 2013 3:48 pm

Wasn't fixed in latest ROS release... big surprise...
Guy at tech support is surprised also =)
 
belowzero273
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Re: cable length test

Tue Oct 22, 2013 6:51 pm

Wasn't fixed in latest ROS release... big surprise...
In fact in works, but ONLY if something's wrong with the link.
run the command and unplug the cable, see for yourself =)

Kinda weird, but still.
 
JackANSI
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Re: cable length test

Wed Oct 23, 2013 12:17 am

I needed to move to firmware 3.10 it seems...
 
belowzero273
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Re: cable length test

Wed Oct 23, 2013 11:23 pm

I needed to move to firmware 3.10 it seems...
Mine is 3.08, but 3.10 is available.
 
piku
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Re: cable length test

Fri Jan 22, 2021 7:07 am

I also encountered this problem about 8 years later, which surprised me.
I want to know where the problem is.
 
rezancre
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Re: cable length test

Fri Jul 30, 2021 11:03 am

I also encountered this problem about 8 years later, which surprised me.
I want to know where the problem is.
I had same problem. I find solution, cable length can be seen only via winbox.
I could not see it via cmd or webfig.
 
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feranmi
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Re: cable length test

Fri Jul 30, 2021 5:13 pm

To see more detailed info, just press the space bar on your keyboard

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