From: Sam.MicroGate@usa.telekom.de
Date: Thu Feb 06 2003 - 18:29:00 GMT-3
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 - 11:06:13 GMT-3