[c-nsp] out-of-band management - modems?

[Scott Granados]

We're actually using DSL that's aggregated over a series of ATM connections 
back to us where we can apply what ever IP services we need.  The advantages 
here are none of the modem head aches and lots more pipe in the event of an 
inband management failure.  Also, OSPF deals with this nicely rerouting 
traffic over the DSL (which is less prefered) when the Inband management T1 
fails.  No call completion crap shoot.  You also don't have to test your 
dial network (deleting management PVCs etc) periodically to insure the 
modems still work and the lines are active.  (not to mention losing 
management in the event that test fails)  In our configuration though we're 
using dedicated management routers in each CO, your milage and configuration 
may vary.





----- Original Message ----- 
From: "Furnish, Trever G" <TGFurnish at herffjones.com>
To: <cisco-nsp at puck.nether.net>
Sent: Monday, November 05, 2007 10:21 AM
Subject: [c-nsp] out-of-band management - modems?


> This is probably a repeatedly asked question, even if not a frequently
> asked question.
>
> What is everyone doing for out-of-band management of WAN routers that
> don't have redundant data connections (or do)?  Modems?  Something else?
> I would appreciate suggestions for specific modems and/or methods.
>
> We currently use Courier v.Everything modems and pots lines connected to
> the console ports of the routers, but reliability of the OOB connection
> is not very good, and it's a struggle to keep the remote site phone
> lines connected, since dial-up POTS lines seem to be something phone
> system admins these days just can't be convinced to keep working and the
> modems themselves frequently don't negotiate correctly.
>
> I am about to order more modems and phone lines, so if your experiences
> would be most appreciated.
>
> --
> Trever Furnish, tgfurnish at herffjones.com
>
> PS: I've also set aside some time to script up some method to
> periodically verify that each site's modem is still connected and
> working.  Any suggestions there on what tool to use?  At the moment
> it'll probably be tip or kermit or minicom on Linux.
>
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