From: Yasser Abdullah (yasser@alharbitelecom.com)
Date: Fri May 28 2004 - 12:37:30 GMT-3
Yes, normally you don't need to change the delay timer in the watch-list,
but it's good to know it anyway :)
For the routing protocols: OSPF, ISIS & EIGRP you will need to change the
hello timer. The dead (OSPF) and multiplier (ISIS) are automatically
adjusted when you configure the hello interval. EIGRP, changing the hello
will not automatically change the hold-time so you need to change both
manually.
For RIP, change the timers as you said.
Brgds,
Yasser
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
ccie2be
Sent: Friday, May 28, 2004 6:05 PM
To: Yasser Abdullah; ccielab@groupstudy.com
Subject: Re: ISDN Dialer-Watch Question - kick-in delay
Thanks, Yasser. But, I think if the objective is to speed up convergence,
you don't have to worry about the dialer watch-list delay command because,
by default, there is no delay. You only need to know which timers for each
protocol to adjust.
Off-hand, these are the timers I'd change to speed convergence for each
protocol.
RIP - timers garbage parameter ( just a guess, I don't know if dialer looks
for when route is unreachable or actually not in route table)
OSPF - Hello timer or Dead Interval
ISIS - Hello or hello multiple??
Eigrp - Hello timer?
What's my score? 100%, 75%, 50 %, or 25% or 0%?
Thanks
----- Original Message -----
From: "Yasser Abdullah" <yasser@alharbitelecom.com>
To: "'ccie2be'" <ccie2be@nyc.rr.com>; <ccielab@groupstudy.com>
Sent: Friday, May 28, 2004 10:32 AM
Subject: RE: ISDN Dialer-Watch Question - kick-in delay
> There are two timers actually:
>
> 1- You might first need to modify the routing protocol timers to detect
the
> loss of the neighbor within an x amount of seconds. For example, if you
have
> OSPF running on NBMA network (type non-broadcast), then you will need to
> adjust the hello timer.
>
> 2- You need to adjust the dialer-watch connect timer. This is done via the
> command" dialer watch-list x delay connect xyz". In this case, your
> dialer-watch will activate the second link after xyz seconds from
detecting
> the loss of the route.
>
> Brgds,
>
> Yasser
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> ccie2be
> Sent: Friday, May 28, 2004 5:16 PM
> To: Richard Dumoulin; vdadlaney@comcast.net; ccielab@groupstudy.com
> Subject: Re: ISDN Dialer-Watch Question - kick-in delay
>
> Hey Guys,
>
> What determines how long it takes before Dialer Watch kicks in and
triggers
> a call?
>
> I suspect it depends on waht routing protocol is running and how long it
> takes the routing protocol to remove the watched routes from the routing
> table. Is this true?
>
> And, if so, is this info easily found on the Doc CD, so that I don't have
to
> memorize this info for each routing protocol before the lab?
>
> Thanks in advance
>
>
> ----- Original Message -----
> From: "Richard Dumoulin" <richard.dumoulin@vanco.es>
> To: <vdadlaney@comcast.net>; <ccielab@groupstudy.com>
> Sent: Friday, May 28, 2004 9:27 AM
> Subject: RE: ISDN Dialer-Watch Question
>
>
> > Yes, with a dialer string instead. But I thought it was well known,
> >
> > --Richard
> >
> > -----Original Message-----
> > From: vdadlaney@comcast.net [mailto:vdadlaney@comcast.net]
> > Sent: viernes, 28 de mayo de 2004 15:11
> > To: ccielab@groupstudy.com
> > Subject: ISDN Dialer-Watch Question
> >
> >
> > Hi, has anyone seen a scenario where dialer watch is used for isdn
backup
> > but there is no dialer map for the watched network. I always thought
this
> > was a requirement but I have seen this working perfectly without the
> command
> > in a production network. The route being watched is a default route of
> > 0.0.0.0 which is being provided by the primary router which has the
> primary
> > link. Appreciate your thoughts on this. Thanks
> >
> > _______________________________________________________________________
> > Please help support GroupStudy by purchasing your study materials from:
> > http://shop.groupstudy.com
> >
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
> > _______________________________________________________________________
> > Please help support GroupStudy by purchasing your study materials from:
> > http://shop.groupstudy.com
> >
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Please help support GroupStudy by purchasing your study materials from:
> http://shop.groupstudy.com
>
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Wed Jun 02 2004 - 11:12:18 GMT-3