From: Cristian Henry H (chenry@reuna.cl)
Date: Tue Oct 15 2002 - 17:34:13 GMT-3
Good point!, thanks
Joe Martin wrote:
>
> They both serve the same purpose. However, floating static routes are not
> allowed on the CCIE Lab exam.
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> MADMAN
> Sent: Tuesday, October 15, 2002 12:59 PM
> To: syv
> Cc: Azhar Mehmood; ccielab@groupstudy.com
> Subject: Re: Dialer watch
>
> I have never used dialer watch but have seen a few threads on it's use
> and I don't see much differance between it and a simple floating static
> route, ( my method of choice).
>
> I know I must be missing something...
>
> Dave
>
> syv wrote:
> >
> > On Tuesday, October 15, 2002, Azhar Mehmood wrote:
> >
> > Characteristics of dialer watch:
> >
> > * Watches specific routes in the routing table and initiates
> > backup link if the route is missing
> > * Encapsulation independent
> > * Evaluates status of primary link based on the existence of
> > routes to the peer. Hence it considers primary link status
> > based on the ability to pass traffic to the peer
> > Does not rely on interesting packets to trigger dialing
> > Dialing the backup link is done immediately when the primary
> > route is lost
> > * Dependent on the routing protocol convergence time
> > only IGRP/EIGRP/OSPF supported
> > * Supports multiple router backup scenario
> > * Bandwidth on demand is not possible since the route to the
> > peer will exist regardless of the load on the primary link
> > Triggered by:
> > 1. Interesting packets defined with DDR
> > 2. Connection loss on primary interface
> > 3. Traffic threshold being exceeded
> >
> > -----Original Message-----
> > AM> Hi,
> >
> > AM> I have a router R1 ehich has 3 exit points to reach a specific subnet:
> >
> > AM> 1. Ethernet
> > AM> 2. Serial
> > AM> 3. ISDN
> >
> > AM> As long the route over ethernet is available it's prefered over all
> other, after it has gone serial is prefered and as third option the ISDN
> Link.
> >
> > AM> Now my problem is how to keep ISDN Link down until both of the primary
> links are available. I tried to acomplish it with dialer watch but as soon
> as the ethernet is gone dialer watch triggers the
> > AM> call hence it brings it also down again after idle-timeou
> > AM> t.
> >
> > AM> My question is how to configure the router that it waits until both of
> the link 're unavailable and triggering than an isdn call.
> >
> > AM> regards
> >
> > AM> AZHAR MEHMOOD
> > AM> GERMANY
> >
> > Thanks
> > --
> > syv@911networks.com
>
> --
> David Madland
> CCIE# 2016
> Sr. Network Engineer
> Qwest Communications
> 612-664-3367
>
> "You don't make the poor richer by making the rich poorer." --Winston
> Churchill
-- Cristian E. Henry REUNAE-mail: chenry@reuna.cl Fono: 56-2-3370336
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