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Mac Forum / Country Specific / UK Mac Group / May 2008



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Monitoring ADSL speeds?

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Stimpy - 04 May 2008 14:27 GMT
My ADSL downstream speed (i.e. the speed from the phone line into the ADSL
router) is *very* variable - from >4000 kbps down to 128kbps.   It's been
like this for well over a year now.

BT's response is that it's "just one of those things and that I should
monitor the line"

Using the ADSL router control panel and a bit of paper to do this is a PITA;
can anyone recommend a bit of software that will monitor and record the
downstream speed over a period of time?  This will enable me to provide BT
with some real, detailed stats

TIA
Andy Hewitt - 04 May 2008 14:55 GMT
> My ADSL downstream speed (i.e. the speed from the phone line into the ADSL
> router) is *very* variable - from >4000 kbps down to 128kbps.   It's been
[quoted text clipped - 9 lines]
>
> TIA

NetMonitor gives this information, and is cheap. However, It only
monitors the en0 port, so everything that you send/recieve gets
recorded. It could give false readings if you're on a network. Otherwise
I think you're down to plan A.

Signature

Andy Hewitt
<http://web.mac.com/andrewhewitt1/>

Stimpy - 04 May 2008 15:16 GMT
On Sun, 4 May 2008 14:55:40 +0100, Andy Hewitt wrote

>> My ADSL downstream speed (i.e. the speed from the phone line into the ADSL
>> router) is *very* variable - from >4000 kbps down to 128kbps.   It's been
[quoted text clipped - 14 lines]
> recorded. It could give false readings if you're on a network. Otherwise
> I think you're down to plan A.

Mmm... I've got 8 IP devices hanging off the ADSL router (via two other
wireless hubs) but all I want/need to do is to monitor record the traffic
between the phone socket and the ADSL router.

<Thinks>... Wonder if I could do an Applescript to simulate hitting <F5> in
Safari whilst connect to 198.162.0.1 and then capture the 'Downstream Speed'
value?   Goes off to fiddle...
Woody - 04 May 2008 17:29 GMT
> On Sun, 4 May 2008 14:55:40 +0100, Andy Hewitt wrote
> >
[quoted text clipped - 24 lines]
> Safari whilst connect to 198.162.0.1 and then capture the 'Downstream Speed'
> value?   Goes off to fiddle...

Do you have snmp on your router, as then there are many tools you could
use.

Signature

Woody

www.alienrat.com

Stimpy - 04 May 2008 18:21 GMT
On Sun, 4 May 2008 17:29:42 +0100, Woody wrote

>> Mmm... I've got 8 IP devices hanging off the ADSL router (via two other
>> wireless hubs) but all I want/need to do is to monitor record the traffic
[quoted text clipped - 6 lines]
> Do you have snmp on your router, as then there are many tools you could
> use.

Err... what's SNMP?  (sorry, dumb question)
Chris Ridd - 04 May 2008 18:37 GMT
> On Sun, 4 May 2008 17:29:42 +0100, Woody wrote
>>
[quoted text clipped - 10 lines]
>
> Err... what's SNMP?  (sorry, dumb question)

Simple Network Management Protocol. It is a way to gather statistics
from networked devices, like the number of bytes in and out of a
network interface.

OS X has some command-line SNMP tools, like snmpget and snmpwalk.

Cheers,

Chris
Graham J - 04 May 2008 21:10 GMT
>> On Sun, 4 May 2008 17:29:42 +0100, Woody wrote
>>>
[quoted text clipped - 19 lines]
>
> OS X has some command-line SNMP tools, like snmpget and snmpwalk.

Alternatively get a router that reports to a syslog server.  (You can run
syslog on a Mac, can't you?)

-- Graham J
Chris Ridd - 05 May 2008 03:39 GMT
> Alternatively get a router that reports to a syslog server.  (You can run
> syslog on a Mac, can't you?)

What would you be expecting the router to log? You'll probably find
your OS X box is already running syslogd.

Cheers,

Chris
Graham J - 05 May 2008 10:17 GMT
>> Alternatively get a router that reports to a syslog server.  (You can run
>> syslog on a Mac, can't you?)
>
> What would you be expecting the router to log? You'll probably find your
> OS X box is already running syslogd.

This will depend on the router, but typically up/download speed, SNR margin,
and line attenuation; these every few minutes.  I wil probably also log
details of outgoing traffic - so you need to be prepared to filter the log
file.

-- Graham J
Chris Ridd - 05 May 2008 11:20 GMT
>>> Alternatively get a router that reports to a syslog server.  (You can run
>>> syslog on a Mac, can't you?)
[quoted text clipped - 6 lines]
> details of outgoing traffic - so you need to be prepared to filter the log
> file.

About the only thing mine (a Linksys running Tomato firmware - some
kind of mutant Linux) logs after it boots are DHCP requests and acks.

OTOH it records bandwidth usage quite handily anyway without using
syslog or SNMP :-)

Cheers,

Chris
Graham J - 05 May 2008 12:32 GMT
>>>> Alternatively get a router that reports to a syslog server.  (You can
>>>> run
[quoted text clipped - 15 lines]
> OTOH it records bandwidth usage quite handily anyway without using syslog
> or SNMP :-)

Vigor routers give useful information ...

-- Graham J
Peter Ceresole - 04 May 2008 15:19 GMT
> Using the ADSL router control panel and a bit of paper to do this is a PITA;
> can anyone recommend a bit of software that will monitor and record the
> downstream speed over a period of time?  This will enable me to provide BT
> with some real, detailed stats

http://www.thinkbroadband.com/

Get a (free) account. Do periodic speed tests. The info is stored on
your account, and you have access to the figures when you want.
Signature

Peter

 
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