From: Persio Pucci (persiopucci@uol.com.br)
Date: Tue Sep 24 2002 - 17:39:33 GMT-3
but Joe, the hello packet does not carry information on what type of network
that neighbor is working on....
and once again, if that was true, skynet would be impossible to do on what
concerns OSPF, once that you are NOT allowed to use "ip ospf netowrk"
command...
I don't have the routers right now to test that, only tomorrow, but can
anybody confirm the discussion above?
----- Original Message -----
From: "Joe Martin" <jmartin@capitalpremium.net>
To: "Persio Pucci" <persiopucci@uol.com.br>; "CCIE GroupStudy"
<ccielab@groupstudy.com>
Sent: Tuesday, September 24, 2002 5:37 PM
Subject: RE: Soile's Skynet Lab
> Yes, the network type must match!! I know because this is exactly what
> killed me on my first attempt. I even asked that question to the proctor
> who confirmed (without directly answering the question) that the network
> types MUST match, even if the timers are the same.
> You would only need to use the "neighbor" statement on a NBMA network such
> as frame relay.
>
> Joe
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Persio Pucci
> Sent: Tuesday, September 24, 2002 1:54 PM
> To: ccielab@groupstudy.com
> Subject: Re: Soile's Skynet Lab
>
>
> RE: Soile's Skynet Labdoes the network type have to match for the router
to
> form adjacency? I think not, but if I am wrong please explain... I think
> that
> if the timers match, the network type can be different (altough it will
make
> you use "neighbor" statements if using different network types, but thats
> another story).
>
> Otherwise, Skynet lab would be impossible to do, once you have to form
> adjacency between the routers, with the hub using subinterfaces and the
> spokes
> using physical interfaces, without using the "ip ospf network" command...
>
> ----- Original Message -----
> From: Joe Martin
> To: Larson, Chris ; Persio Pucci ; ccielab@groupstudy.com
> Sent: Tuesday, September 24, 2002 4:48 PM
> Subject: RE: Soile's Skynet Lab
>
>
> Correct! The OSPF timers must match for all routers in the area and the
> OSPF network type must match for the routers to form adjacencies.
> You can change the OSPF network type with the "ip ospf network
> <networktype>" interface command, if you need to.
> Sorry, I'm not sitting in front of my routers right now so I'm not sure
if
> that is the correct syntax. Someone PLEASE correct me if I'm wrong on
that
> syntax.
> -----Original Message-----
> From: Larson, Chris [mailto:CLarson@usaid.gov]
> Sent: Tuesday, September 24, 2002 1:34 PM
> To: 'Joe Martin'; Persio Pucci; ccielab@groupstudy.com
> Subject: RE: Soile's Skynet Lab
>
>
> I have not done Solies yet, but I know you do have to make all the
> timers
> match in OSPF for adjencies to form, however I do not think that simply
> making
> timers match is a solution to differeing OSPF network types. Is that
> correct??
>
> -----Original Message-----
> From: Joe Martin [SMTP:jmartin@capitalpremium.net]
> Sent: Tuesday, September 24, 2002 2:41 PM
> To: Persio Pucci; ccielab@groupstudy.com
> Subject: RE: Soile's Skynet Lab
>
> Persio,
>
> Read the thread on OSPF Dead Interval.
>
> If you change only the hello timer all the other timers are
> automatically
> updated.
>
> Joe
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf
Of
> Persio Pucci
> Sent: Tuesday, September 24, 2002 12:01 PM
> To: ccielab@groupstudy.com
> Subject: Soile's Skynet Lab
>
>
>
> Folks,
>
> going through Soile's Skynet lab, I came upon one doubt: You are
> supposed to
> chenge the OSPF Hello timer to 60s on R3. Also, you are supposed to
> overcome
> the different network problem between R1, R2 and R3 without using
"ip
> ospf
> network", and by this, you have to change also the timers. It's okay
> then
> that
> the three routers agree upon 60s hello timers.
>
> My question is: shoudn't the dead timers be changed as well? I am
> asking
> this
> because on the Skynet solution guide, there's no change on the dead
> timer
> for
> any router.
>
> Regards,
>
> Persio
This archive was generated by hypermail 2.1.4 : Mon Oct 07 2002 - 07:44:02 GMT-3