From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Tue May 31 2005 - 13:42:52 GMT-3
Technically by default it will stop resetting the idle-timeout and allow
the ISDN connection to disconnect on its own. Also the route must be
learned from a non-primary interface (interface without the dialer watch
configuration) to be considered back.
You should always ensure that if the route is learned over the ISDN
connection, which is fine and maybe needed, that it can be overtaken by
the original route when it comes back. A well written lab could have
the route learned via the ISDN connection (non-primary interface)
preferred over say the Frame Relay connection (primary interface). This
would cause the route learned over the primary connection to not be
inserted into the routing table due to the fact that the non-primary
route is being preferred (better metric/better administrative distance).
This will in turn cause dialer watch to never drop the call. Also if
the non-primary and primary routes are identical (same metric and
administrative distance) and the routing process inserts both into the
routing table, dialer watch will never allow the call to drop.
So basically just ensure that when the route is learned over the
interface configured with dialer watch that that route can be overtaken
in the routing table by the original route.
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Sivaramakrishnan, Ts
Sent: Tuesday, May 31, 2005 12:36 AM
To: san; Peter Ding (pding)
Cc: ccielab@groupstudy.com
Subject: RE: Multiple dialer watch-list
Guys,
If the original routes comes back to the routing table, will the
triggerd links (ISDN/Serial) goes down or spoofed state.
Regards
Shivas
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
san
Sent: Tuesday, May 31, 2005 12:58 PM
To: Peter Ding (pding)
Cc: ccielab@groupstudy.com
Subject: Re: Multiple dialer watch-list
Only when all the watched routes disappear, dialer watch will get
activated to place a call.
/SAN
On 5/31/05, Peter Ding (pding) <pding@cisco.com> wrote:
> If I have multiple dialer watch-list below,
>
> dialer watch-list 1 ip 10.1.1.0 255.255.255.0
> dialer watch-list 1 ip 10.1.2.0 255.255.255.0
> dialer watch-list 1 ip 10.1.3.0 255.255.255.0
>
> Will the call be triggered when one of the watched route is lost or
all
> of the watched routes are lost?
>
> TIA,
>
> PD
>
>
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