From: Aaron Woody (awoody@columbus.rr.com)
Date: Fri Feb 07 2003 - 00:15:41 GMT-3
I agree with Joe. ISDN can be a pain all by itself.
Aaron
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Joe Chang
Sent: Thursday, February 06, 2003 4:14 PM
To: ccielab@groupstudy.com
Subject: Re: Back up interface - Which do you prefer?
True, the keep it simple rule holds well in this case. ISDN connectivity
itself is touchy enough as it is.
----- Original Message -----
From: <Sam.MicroGate@usa.telekom.de>
To: <cannonr@attbi.com>; <sam@avtechusa.com>; <ccielab@groupstudy.com>
Sent: Thursday, February 06, 2003 5:29 PM
Subject: RE: Back up interface - Which do you prefer?
> Hello,
>
> In the exam, there is no best method. You have to meet the requirements
even
> it is not the best practice.
> In real life, I have installed hundreds of ISDN circuits as a backup
links.
> 99.9% of these circuits, I used either floating static route or the backup
> command under the primary interface.
>
> Sam
>
>
>
>
> -----Original Message-----
> From: cannonr [mailto:cannonr@attbi.com]
> Sent: Thursday, February 06, 2003 4:06 PM
> To: sam; ccielab@groupstudy.com
> Subject: Re: Back up interface - Which do you prefer?
>
>
> Dialer Watch is the best method in my opinion. It is routing protocol
> independant because it watches the actual routing table. There is much
less
> admin work than DDR. It is also faster than DDR because with DDR, you may
> be waiting for an INARP entry to dissapear if a subinterface dies.
>
> Royce
> ----- Original Message -----
> From: "sam" <sam@avtechusa.com>
> To: <ccielab@groupstudy.com>
> Sent: Thursday, February 06, 2003 1:02 PM
> Subject: ISDN: Back up interface - Which do you prefer?
>
>
> > Hey all, I appreciate your time taken to read this.
> >
> > It is my understanding that there are several methods that can be used
> > to configure an On-Demand ISDN line as a backup. In particular,
> >
> >
> > - OSPF demand-circuit to suppress OSPF hello-packets
> > - EIGRP on-demand-routing (ODR) using CDP to halt EIGRP routing
> > updates keeping link alive
> > - Dialer Watch Group used to monitor specific routes instead of
> > an interface
> >
> > I can understand different methods deployed if you use different
> > routing protocols, but are there any advantages to any method, or a
> > preferred style that you might use? Any other methods you find
> > desirable?
> >
> > TIA!
> >
> > Sam Sena
> > Avtech Technologies
> > 4500 New Brunswick Ave
> > Piscataway NJ
> > (732) 424-8008 (o)
> > (732) 424-7388 (f)
> > .
> .
.
.
This archive was generated by hypermail 2.1.4 : Sat Mar 01 2003 - 11:06:14 GMT-3