From: Larson, Chris (CLarson@usaid.gov)
Date: Wed Sep 25 2002 - 10:21:06 GMT-3
Yes, but there is another issue which there is some controversy over. I
would suggest that even if all the timers match, if the network types do not
match, an adjecency will not form.
My first question would be do most agree this is true?
My second question is, why if timers match do mismatched network types still
keep an adjacency from forming??
> -----Original Message-----
> From: C.Sammarcellino@sirtisistemi.it
> [SMTP:C.Sammarcellino@sirtisistemi.it]
> Sent: Wednesday, September 25, 2002 3:29 AM
> To: ccielab@groupstudy.com
> Subject: RE: Soile's Skynet Lab
>
> The problem for OSPF for adjencies to form is thath,the following
> parameter MUST match for all OSPF interface connect togheter,
>
> 1) AREA ID
> 2) AUTHENTICATION
> 3) Network Mask
> 4) HELLO TIMER ------------------------------------------
> 5) Router Dead Interval
> 6) Stub Area Flag
>
>
> for adjust the HELLO TIMER, you can use two solution:
>
> 1) You can use the "Ip ospf network type" under the interface and
> automaticaly change the OSPF timer for the interface (for verify thath
> "sh ip ospf interface")
> 2) You can adjust the OSPF Hello timer (ip ospf hello-intervall, ip
> ospf dead-interval)
>
> Other problem for OSPF adjencies is the Broadcast capabilities of the
> interface, than for interface with no Broadcast capibilities it is
> necessary define the neighbor because the hello are unicast, (neighbor
> x.x.x.x)
>
> Bye
>
> Ciro
>
>
> You can set manualy the timer under the interface, if the time
>
>
>
>
> "Larson, Chris" <CLarson@usaid.gov>@groupstudy.com on 24/09/2002 20.34.18
>
> Please respond to "Larson, Chris" <CLarson@usaid.gov>
>
> Sent by: nobody@groupstudy.com
>
>
> To: "'Joe Martin'" <jmartin@capitalpremium.net>, Persio Pucci
> <persiopucci@uol.com.br>, ccielab@groupstudy.com
> cc:
>
> 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
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