Re: EIGRP - RTO value - 3d Try

From: ccie2k4@gmail.com
Date: Wed Jul 04 2007 - 19:18:26 ART


Thank you everyone. That is exactly the information I was looking for.

On 7/4/07, Gary Duncanson <gary.duncanson@googlemail.com> wrote:
>
> Yup, need to check all the values. High values in Q count could indicate
> a
> problem like congestion. I have noticed RTO of 5000 on eigrp stub routers
> when
> all is well.
>
>
> ----- Original Message -----
> From: JOEL AMAO
> To: Gary Duncanson ; ccie2k4@gmail.com
> Cc: ccielab@groupstudy.com
> Sent: Tuesday, July 03, 2007 8:19 PM
> Subject: RE: EIGRP - RTO value - 3d Try
>
>
>
> RTO OF 5000 is not a problem. RTO of 5000 with a Q count > 1 is a problem.
>
> In general, i have noticed that EIGRP's RTO defaults to 5000 when
> adjacency
> is formed via a logical interface such as Tunnel interface.
>
> Thanks
>
> Joel
> CCIE#18128
>
>
>
> > To: ccie2k4@gmail.com
> > CC: ccielab@groupstudy.com
> > Subject: Re: EIGRP - RTO value - 3d Try
> > Date: Tue, 3 Jul 2007 19:12:27 +0100
> > From: gary.duncanson@googlemail.com
> >
> > RTO (Retransmit timeout) for your updates queries and replies is
> typically
> 6
> > x Smooth Round Trip Time.
> > Minimum RTO is 200ms
> > Maximum RTO is 5000 ms (5 second)
> >
> > RTO 5000 can be indicative of a unidirectional link problem.
> > http://www.ciscopress.com/articles/article.asp?p=27839&rl=1
> >
> > HTH
> > Gary
> > ----- Original Message -----
> > From: <ccie2k4@gmail.com>
> > To: "Cisco certification" <ccielab@groupstudy.com>
> > Sent: Tuesday, July 03, 2007 1:18 PM
> > Subject: Fwd: EIGRP - RTO value - 3d Try
> >
> >
> > > Hi, my 3d try. pls help. thx
> > >
> > > ---------- Forwarded message ----------
> > > From: ccie2k4@gmail.com <ccie2k4@gmail.com>
> > > Date: Jun 30, 2007 9:37 PM
> > > Subject: EIGRP - RTO value
> > > To: ccielab@groupstudy.com
> > >
> > > Hi, can anyone please confirm if it is normal to have a RTO value of
> 5000
> > > in
> > > the output of a show ip eigrp neighbors. I seem to be seeing this in a
> lot
> > > of devices. The RTO counter as defined means that "the amount of time
> that
> > > EIGRP will wait to retransmit a reliable packet from the
> retransmission
> > > queue." I have read examples and seen a couple of posts that lean
> towards
> > > saying that this isn't good however I am not so certain if this is
> true
> or
> > > not. There seem to be no problems on the links (not dropping any
> pings)
> > > and
> > > the drop counters are not incrementing. The Q cnt is 0 which I am sure
> is
> > > good. Could someone please confirm the RTO counter. Thx
> > >
> > >
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