On Tue, 4 May 2010 16:44:06 +0200 (CEST)
Mikael Abrahamsson wrote:
> On Tue, 4 May 2010, Chris Boyd wrote:
>
> > Most of the ADSL installations I've seen in SBC 13 state area had
> > interleaving turned on, which significantly increases latency. I
> > suspect that's why many cable MSOs in the
--- swm...@swm.pp.se wrote:
From: Mikael Abrahamsson
On Tue, 4 May 2010, Scott Weeks wrote:
> "Interleaved" turned on to correct errors. This adds ~25msec between
> the CPE and the nearest router. Sometimes folks ask for it to be
> changed to "Fast". We explain that errors may cause resync
ssage-
From: Patrick Giagnocavo [mailto:patr...@zill.net]
Sent: Monday, May 03, 2010 10:19 PM
To: Srikanth Sundaresan; NANOG
Subject: Re: Emulating ADSL bandwidth shaping
Srikanth Sundaresan wrote:
> I'm trying to model ADSL access link bandwidth shaping. With a link of
> 18Mbps, I
On Tue, 4 May 2010, Scott Weeks wrote:
"Interleaved" turned on to correct errors. This adds ~25msec between
the CPE and the nearest router. Sometimes folks ask for it to be
changed to "Fast". We explain that errors may cause resyncs to happen
and then make the change if the customer still w
--- cb...@gizmopartners.com wrote:
From: Chris Boyd
On May 4, 2010, at 7:27 AM, Marshall Eubanks wrote:
> I am not sure what the point is in mixing in speed of light
> latency. If your "typical sites" are, say, Indian cricket
> blogs, you will typically have a high latency from the US.
> What
On May 4, 2010, at 8:42 AM, isabel dias wrote:
> Is cable better for gamming?
All the LAN party places I know of use Metro Ethernet solutions. Gamers like
low ping times to their servers, and are willing to spend $$ to get them. So
if your target market includes people who play a lot of fir
On Tue, 4 May 2010, Chris Boyd wrote:
Most of the ADSL installations I've seen in SBC 13 state area had
interleaving turned on, which significantly increases latency. I
suspect that's why many cable MSOs in the same territory have "cable is
better for gaming" marketing campaigns running all t
On Tue, 04 May 2010 06:42:59 PDT, isabel dias said:
> Is cable better for gaming?
Depends on the game and the gamer. Personally, it doesn't matter to me, as
even if I was on my employer's 10GE uplink, I'd still lose to some snot-nosed
brat with fast reflexes on a 56kb modem. So till they invent
Is cable better for gamming?
- Original Message
From: isabel dias
To: Chris Boyd ; NANOG
Sent: Tue, May 4, 2010 2:41:48 PM
Subject: Re: Emulating ADSL bandwidth shaping
same as in the HFC and QAM modulation values and so on and so forth .
services that are requiring a
...
- Original Message
From: Chris Boyd
To: NANOG
Sent: Tue, May 4, 2010 2:19:39 PM
Subject: Re: Emulating ADSL bandwidth shaping
On May 4, 2010, at 7:27 AM, Marshall Eubanks wrote:
> I am not sure what the point is in mixing in speed of light latency. If your
> "typical site
On May 4, 2010, at 7:27 AM, Marshall Eubanks wrote:
> I am not sure what the point is in mixing in speed of light latency. If your
> "typical sites" are, say,
> Indian cricket blogs, you will typically have a high latency from the US.
> What does that tell
> you about your DSL or Cable system,
On May 4, 2010, at 8:02 AM, Dave Hart wrote:
On Tue, May 4, 2010 at 08:54 UTC, Raymond Dijkxhoorn wrote, quoting
Patrick:
For emulating cable traffic, latencies (in the USA) will be about
60-80ms to typical sites.
[...]
For DSL, I seem to recall latency being about 90-110ms (note, I
haven'
Hi!
Either you're looking only at the loop contribution, or you're in the
SF bay area and nearly every "typical site" is available locally.
Here in the relatively backwater Seattle suburbs, unless it's served
by Microsoft or a content distribution network, there are substantial
latencies to typi
On Tue, May 4, 2010 at 08:54 UTC, Raymond Dijkxhoorn wrote, quoting Patrick:
>> For emulating cable traffic, latencies (in the USA) will be about
>> 60-80ms to typical sites.
[...]
>> For DSL, I seem to recall latency being about 90-110ms (note, I haven't
>> used DSL in many years).
[...]
> The lat
Hi!
- do ISPs typically use token bucket filters with large bursts to shape traffic?
- what kind of burst sizes and latencies/limits are typically used for
the filter?
You will definitely have to account for latency.
For emulating cable traffic, latencies (in the USA) will be about
60-80ms t
On May 3, 2010, at 9:19 PM, Patrick Giagnocavo wrote:
>> - do ISPs typically use token bucket filters with large bursts to shape
>> traffic?
>> - what kind of burst sizes and latencies/limits are typically used for
>> the filter?
>>
>
> You will definitely have to account for latency.
>
> For
Srikanth Sundaresan wrote:
> I'm trying to model ADSL access link bandwidth shaping. With a link of
> 18Mbps, I'm using a token bucket filter (tc + netem) to model 10Mbps,
> 8Mbps and 2Mbps access plans. I have a couple of questions:
>
> - do ISPs typically use token bucket filters with large burs
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