[ale] Docsis 3 Modem Recommendations

[Lightner, Jeff]

I've always preferred external modems to internal - even back in the
days when it was a regular phone line modem.   You can reset your
external modem without rebooting your computer - sometimes internal
modems can only be reset by rebooting the computer they're in.

 

Years ago I had a disagreement with a major customer that was rolling
out over 2,000 central systems my company was going to support.   They
were going to go with internal modems because it would save them $6/year
in maintenance for each unit (units went to each site).   I noted that
2,000 x 6 is a fair amount of change but was really pigeon feed compared
to the overall maintenance cost they were going to pay and taking down
what would be the main unit at each site to reset the modem in the
middle of a support issue was silly.   I lost the argument but ended up
winning because the client found another customer of Big Blue that had
external modems which was NOT having to pay the extra $6/year so forced
them into dropping it from their contract as well.

 

Rebooting a system when you're trying to troubleshoot an issue can also
lose you valuable state information that might help you prevent
recurrence.   Finally some issues are of the nature that a reboot ends
up shutting down but not starting up and you might have headed that off
by looking at the system before the reboot.   Granted this is only an
issue for remote support but it helped crystallize my bias against
internal modems.

 

________________________________

From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of
Michael Trausch
Sent: Saturday, December 25, 2010 1:36 AM
To: Atlanta Linux Enthusiasts
Subject: Re: [ale] Docsis 3 Modem Recommendations

 

For a standard net, yes. However it is the router in the case of my
network (both the public /28 and the private /24). I have a lot of nasty
kludges in place so that I can do things like VPN subnet routing which
should have nothing to do with the modem...

--
Sent from my G2 running CyanogenMod!
That is, a phone. :)

On Dec 25, 2010 1:22 AM, "David Tomaschik" <david at systemoverlord.com>
wrote:
> On 12/25/2010 12:38 AM, Michael Trausch wrote:
>>
>> Honestly, what I would prefer if I could manage to find it would be
an
>> internal DOCSIS 3 modem. I *really* hate the external modem; it takes
>> another friggin plug, when it could simply use the power from the
>> computer, and it means more wires where there needn't be any, and it
>> means that I don't have complete and total control of my bloody
>> network. But I'm probably just being anal retentive here.
>>
>> --- Mike
>>
>>
> I just pretend that the modem isn't part of my network. And really,
> it's not -- it's on the "untrusted" side of my router. No different
> than the equipment at the Comcast office except it's physically in my
house.
> 
> David
 
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