Latency on FTTC products - ADSL24\BT\SKY :: Fibre Broadband

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mr_mojo
(knowledge is power) Wed 31-Oct-12 11:33:02

Re: Latency on FTTC products - ADSL24\BT\SKY

[re: RobertoS] [link to this post]

Crosstalk as the cab starts to fill up?

kasg
(experienced) Wed 31-Oct-12 11:43:19

Re: Latency on FTTC products - ADSL24\BT\SKY

[re: RobertoS] [link to this post]

In reply to a post by RobertoS:
Sunday 5am mine went onto interleaved for the first time since connection in Feb 2011. No apparent reason in my modem stats log or BQM.

Mine has been on interleaved for about 6 weeks now, having been non-interleaved for about 6 weeks before that. It just seems to come and go for no particularly good reason and I lose about 7Mbps downstream when it's interleaved. My sync speed has been the same for the whole 6 weeks (and my Plusnet profile still hasn't updated downwards since the change!).

Kevin

plusnet Extra Fibre (80/20)
Using OpenDNS
Domains and web hosting with TSOHOST

RobertoS
(sensei) Wed 31-Oct-12 12:34:06

Re: Latency on FTTC products - ADSL24\BT\SKY

[re: kasg] [link to this post]

What's your PN profile set at? And the syc?

My broadband basic info/help site - www.robertos.me.uk | Domains,website and mail hosting - Tsohost.
Connection - Plusnet Extra Fibre (FTTC). Sync ~ 52.9/14.2Mbps @ 600m. - BQM

"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
^{~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.}

kasg
(experienced) Wed 31-Oct-12 12:46:58

Re: Latency on FTTC products - ADSL24\BT\SKY

[re: RobertoS] [link to this post]

In reply to a post by RobertoS:
What's your PN profile set at? And the syc?

69.8Mbps, 65802.

Kevin

plusnet Extra Fibre (80/20)
Using OpenDNS
Domains and web hosting with TSOHOST

deleted
(deleted) Wed 31-Oct-12 20:01:01

Re: Latency on FTTC products - ADSL24\BT\SKY

[re: RobertoS] [link to this post]

In reply to a post by RobertoS:
Sunday 5am mine went onto interleaved for the first time since connection in Feb 2011. No apparent reason in my modem stats log or BQM.

Interleaving depth is 639 down, 1 up, and downstream sync dropped by about 5Mbps . Upstream sync about as it was.

Now that's a proper thread hijacking right there. Please stay on topic.

RobertoS
(sensei) Wed 31-Oct-12 20:13:56

Re: Latency on FTTC products - ADSL24\BT\SKY

[re: deleted] [link to this post]

Oops! I intended to include "Latency on my BQM rose from 13ms to 21ms." What I posted was just background info for it.

I should also have included

Pinging bbc.co.uk [212.58.241.131] with 32 bytes of data:
Reply from 212.58.241.131: bytes=32 time=22ms TTL=244
Reply from 212.58.241.131: bytes=32 time=22ms TTL=244
Reply from 212.58.241.131: bytes=32 time=23ms TTL=244
Reply from 212.58.241.131: bytes=32 time=23ms TTL=244

Ping statistics for 212.58.241.131:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 22ms, Maximum = 23ms, Average = 22ms

On Fast Path it was 13/14ms.

That better?

In my opinion the effects of the Openreach DLM, which that shows, are far more significant than getting data from users of three ISPs at random locations.

kasg
(experienced) Wed 31-Oct-12 20:25:23

Re: Latency on FTTC products - ADSL24\BT\SKY

[re: RobertoS] [link to this post]

In reply to a post by RobertoS:
Oops! I intended to include "Latency on my BQM rose from 13ms to 21ms." What I posted was just background info for it.

And likewise, mine goes from about 10ms to 20ms when interleaving is on.

Kevin

plusnet Extra Fibre (80/20)
Using OpenDNS
Domains and web hosting with TSOHOST

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