From: Raymond Doucette (raymond_doucette@msn.com)
Date: Thu Dec 19 2002 - 13:55:55 GMT-3
Dialer map statements on the hub in this scenario are definitely not
necessary.
My understanding is that over-configurations do not result in lost marks
unless they negatively impact the operation of other features that are
required success criteria.
In other words, as long as it doesn't hurt anything it doesn't matter.
Having said that, you're not earning points when you're typing in
unneeded commands. If you really know the technologies you'll rarely
have to worry about over-configurations.
Raymond
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Tony Schaffran
Sent: Thursday, December 19, 2002 11:17 AM
To: Matthew Poole; Scott Livingston; ccielab@groupstudy.com
Subject: Re: ISDN Frustrations
If it is stated that the hub is never to call the spoke, then I would
assume
that any additional statements required to dial the spoke would not be
needed, hence over config.
Just my thought.
Tony Schaffran
Network Analyst
CCNP, CCNA, CCDA,
NNCSS, NNCDS, CNE, MCSE
CCOnlineLabs.com
http://www.cconlinelabs.com
----- Original Message -----
From: "Matthew Poole" <matthew.poole@blueyonder.co.uk>
To: "Scott Livingston" <scottl@sprinthosting.net>;
<ccielab@groupstudy.com>
Sent: Thursday, December 19, 2002 7:56 AM
Subject: Re: ISDN Frustrations
> I'm not the only one having ISDN frustrations then!
>
> I just tried your scenario.
>
> 1st Q - it works without dialer map statements at the Hub.
> 2nd Q - as above, how far do you go, because it will also work without
> dialer-list/group on the hub??
> 3rd Q - Multilink brings up both lines with just one dialer map.
>
> interface BRI0/0
> ip address 192.168.1.2 255.255.255.0
> encapsulation ppp
> dialer idle-timeout 20
> dialer map ip 192.168.1.1 325500
> dialer load-threshold 1 outbound
> dialer-group 1
> isdn switch-type basic-net3
> ppp multilink
> end
>
> Router#ping
> Protocol [ip]:
> Target IP address: 192.168.1.1
> Repeat count [5]:
> Datagram size [100]: 1500
> Timeout in seconds [2]:
> Extended commands [n]:
> Sweep range of sizes [n]:
> Type escape sequence to abort.
> Sending 5, 1500-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
> .
> 00:15:204029776952: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state
to
> up!!
> 00:15:48: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1,
changed
> stat
> e to up!!
> Success rate is 80 percent (4/5), round-trip min/avg/max = 380/381/385
ms
> Router#
> 00:15:227633266687: %LINK-3-UPDOWN: Interface BRI0/0:2, changed state
to
up
> Router#
> 00:15:225511851936: %ISDN-6-CONNECT: Interface BRI0/0:1 is now
connected
to
> 3255
> 00
> Router#
> 00:15:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:2,
changed
> stat
> e to up
> Router#
>
> HTH
> ----- Original Message -----
> From: "Scott Livingston" <scottl@sprinthosting.net>
> To: <ccielab@groupstudy.com>
> Sent: Thursday, December 19, 2002 3:11 PM
> Subject: ISDN Frustrations
>
>
> > Good Morning,
> >
> > Have some big time ISDN frustrations.
> >
> > If spoke is to call hub, but the task doesn't explicitly tell me
that
> > the hub is to be able to call the spoke and there isn't any callback
> > stuff needed to complete the task then do I configure dialer map
> > statements on the hub for the spoke?
> >
> > I know I can configure a dialer map on the hub without the LDN to
make
> > it so the hub cannot call the spoke or as we know we can slap the
LDN on
> > there and give the hub that option.
> >
> > What would you do in the lab if the requirement was for the spoke to
be
> > able to call the hub, but the hub wasn't supposed to call the spoke?
> > Would you configure ANY kind of dialer map on the hub? I am afraid
that
> > if I configure the hub with dialer map statements (over configuring)
I
> > might give the proctor the perception that I don't know how to
configure
> > ISDN optimally for the requirement - lets assume the proctor wont
help
> > to clarify on this point - its all up to me.
> >
> > Also, for bringing up the second B channel.. I have seen so many
> > different examples of configuring ppp multilink on CCO and
IPEXPERTS. In
> > the lab would you configure two dialer maps on the spoke or would
you
> > use just one? I unfortunately am having problems at home with my
ISDN
> > simulator and can not give myself a definitive answer on whether I
can
> > even bring up the second B if I have only 1 dialer map statement in
the
> > spoke.
> >
> > Sorry for the long post.
> >
> > Scott
> > .
> .
.
.
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