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Standard User supernova
(experienced) Thu 08-Feb-07 21:02:14
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Help with Ping times


[link to this post]
 
Hi,
A few weeks ago I had a problem with the main fuse box at home, the fuse box had to be reset a few time (15 times to be precise). I'd forgotten to disconnect my router from the wall and as a result it obviously connected/disconnected to the service 15 times in a matter of a couple of hours.
My Sync speed went down to 7616 from a previously rock solid 8128.
I have also noticed my ping time had gone up from pre problem average of late 20s early 30s to a whooping-VOIP-busting average ping time of late 90s early 100s. It is now not unusual that I see certain hops hitting the 150ms point.
I spoke to PN who assured me that my line has NO interleaving on it....
What else can I do?
My router stats are:
DL: Line att = 17db; Noise margin = 9db
UL: Line att = 10db; Nose margin = 19db
PS my vonage VOIP is all but useless because of latency! I have spoken to vonage who said there was up to 9 seconds delay on the line and have done a firmware upgrade on their device to no avail!

Please Help

Standard User camieabz
(legend) Thu 08-Feb-07 21:16:58
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Re: Help with Ping times


[re: supernova] [link to this post]
 
I take it rebooting to get onto another gateway makes no difference to the connection stats?

Standard User ScaryMonkey
(knowledge is power) Thu 08-Feb-07 21:17:42
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Re: Help with Ping times


[re: supernova] [link to this post]
 
I am assuming you are using the Netgear in your sig here. If not then please correct me. Using the telnet interface of routerstats (linky) will show you if you have interleaving enable IIRC - turning interleaving on is the usual first fix used by BT in my experience and is automatic in the case of repeated disconnections. Note: the BT data is wrong in many cases regarding interleaving - trust your router not BT here.

Vince
Back on Force9......I get what I expect here.
Now a Plusnet Usergroup Member too.

14 year olds racing cars - see our teams progress at MVRacing.co.uk


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Standard User supernova
(experienced) Thu 08-Feb-07 21:32:17
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Re: Help with Ping times


[re: ScaryMonkey] [link to this post]
 
thanks for this link
this is the summary of the router's telnet downstream panel

Connection Rate: 7616
Line Attenuation: 17
Noise Margin: 8

Interleave CRC: 2
Interleave FEC: 28
Interleave HEC: 0

Fast path CRC: 0
Fast path FEC: 0
Fast path HEC: 0

I am not sure what this means.... is it switched on?

Standard User supernova
(experienced) Thu 08-Feb-07 21:34:35
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Re: Help with Ping times


[re: camieabz] [link to this post]
 
No it doesn't

Standard User ScaryMonkey
(knowledge is power) Thu 08-Feb-07 21:35:18
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Re: Help with Ping times


[re: supernova] [link to this post]
 
Well since you are seeing interleaved errors it suggests to me that your line is interleaved. I don't have a Netgear to check anymore but do any of the other pages have similar interleaved/fast path splits - possibly data throughput? Interleaving should only add about 15-20ms to your pings though.

With suitable screenshots PN should be able to escalate this to BT to get interleaving disabled. The BT reporting system for interleaving just isn't up to the job.

Vince
Back on Force9......I get what I expect here.
Now a Plusnet Usergroup Member too.

14 year olds racing cars - see our teams progress at MVRacing.co.uk
Standard User supernova
(experienced) Thu 08-Feb-07 21:39:12
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Re: Help with Ping times


[re: ScaryMonkey] [link to this post]
 
Thanks a lot mate

Standard User supernova
(experienced) Thu 08-Feb-07 22:10:49
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Re: Help with Ping times


[re: ScaryMonkey] [link to this post]
 
I have just come of the phone to PN. Very helpful and have placed an order with BT to switch interleaving off. This despite BT data showing interleaving as being switched off!!

I asked about traffic management and I was assured that all VOIP is titanium.
I will report back with updates.

Standard User supernova
(experienced) Sun 18-Feb-07 15:44:30
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Re: Help with Ping times


[re: supernova] [link to this post]
 
Right, here is an update!!
I have, as indicated above, contacted PN CS last Thursday, an order was placed to switch off interleaving on my line. I was told to give it 3 working days. It has been 6 working days and about 10 days since.
Router stats is still reporting Interleaving as switched on, and my ping is still awful...
The question number is 21282315
Can someone from PN check it for me, please.
screen shot of router stats showing interleaving switched on

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