Kitz ADSL Broadband Information
adsl spacer  
Support this site
Home Broadband ISPs Tech Routers Wiki Forum
 
     
   Compare ISP   Rate your ISP
 
Please login or register.

Login with username, password and session length
Advanced search  

News:

Pages: 1 [2]

Author Topic: FEC issues  (Read 753 times)

kitz

  • Administrator
  • Senior Kitizen
  • *
  • Posts: 29977
  • Trinity: Most guys do.
    • http://www.kitz.co.uk
Re: FEC issues
« Reply #15 on: July 09, 2017, 10:32:35 AM »

Quote
VDSL Range A (Clean)   65.1   48.5 

As you are still performing within range, your ISP are very unlikely to want to call out an Openreach engineer :'(

RE graphs.  Bit hard to say without looking at all other graphs, and not seeing across full frequency range but...
D1 seems a bit noisy.   QLN for D2 range is showing classic signs of crosstalk.
Logged
Please do not PM me with queries for broadband help as I may not be able to respond.
-----
How to get your router line stats :: ADSL Exchange Checker

nsmhd

  • Just arrived
  • *
  • Posts: 8
Re: FEC issues
« Reply #16 on: July 09, 2017, 04:50:38 PM »

Quote
As you are still performing within range, your ISP are very unlikely to want to call out an Openreach engineer :'(
Your right there and I know I'm not alone it's a shame they keep changing the range as well making it lower which is because of crosstalk. My range used to be 71-54 not long ago. It would be great if we could all have FTTP but looks like OR are going with G.fast which unfortunately will properly have the same issues. I will signup to DSL Stats so I can share my full graphs.
Logged

nsmhd

  • Just arrived
  • *
  • Posts: 8
Re: FEC issues
« Reply #17 on: July 10, 2017, 04:29:25 PM »

Looks like something has changed today as both CES and FEC errors have dropped significantly with no spikes for almost 24 hours.
I have now signed up to My dsl webstats username nsmhd.
Thanks again for all your help and hopefully the banding will be lifted eventually.
Logged

j0hn

  • Reg Member
  • ***
  • Posts: 724
Re: FEC issues
« Reply #18 on: July 10, 2017, 05:38:36 PM »

You shouldn't get any FEC on the downstream with INP=0 and Interleave=1

The stats on the web interface for the HG612 are incorrect, only the stats via telnet are correct.
Logged
BT FTTC 55/10 ECI Huawei Cab - Zyxel VMG8924 bridge mode + Asus RT-AC68U running Asuswrt-Merlin - minted on MDWS via DslStats

ejs

  • Kitizen
  • ****
  • Posts: 1299
Re: FEC issues
« Reply #19 on: July 10, 2017, 08:49:19 PM »

         VDSL2 framing
         Bearer 0
MSGc:      20      19
B:      247      238
M:      1      1
T:      64      13
R:      6      16
S:      0.1435      0.5562
L:      14160      3668
D:      1      1
I:      254      255
N:      254      255

The non-zero R values show there is a small amount of FEC on both the downstream and the upstream.

FEC adds coding gain, so it's not necessarily a net-loss of bandwidth. Or perhaps one or other end decided to make use of the available capacity that can't be used for data due to the capped rate.
Logged

nsmhd

  • Just arrived
  • *
  • Posts: 8
Re: FEC issues
« Reply #20 on: July 12, 2017, 06:20:57 PM »

Thanks for the further replys interesting to know :)
Errors across the board are still lower than last few weeks so fingers crossed it is fixed. I'm going on holiday next week and ideally would like to Power down and disconnect the modem in case of thunderstorms etc is this likely to further prolong the capped speed or make it worse?
Logged

burakkucat

  • Global Moderator
  • Senior Kitizen
  • *
  • Posts: 19228
  • Over the Rainbow
    • The ELRepo Project
Re: FEC issues
« Reply #21 on: July 12, 2017, 07:38:32 PM »

I'm going on holiday next week and ideally would like to Power down and disconnect the modem in case of thunderstorms etc is this likely to further prolong the capped speed or make it worse?

That reads as a sensible action. I can't see it making the situation worse, the DLM will just regard it as a long-term outage and ignore the circuit.
Logged
:cat:  100% Linux and, previously, Unix. Co-founder of the ELRepo Project.

Please consider making a donation to support the running of this site.

nsmhd

  • Just arrived
  • *
  • Posts: 8
Re: FEC issues
« Reply #22 on: July 12, 2017, 10:02:21 PM »

Thanks burakkucat that's a relief
Logged
Pages: 1 [2]