From: Darren Johnson (dazza_johnson@yahoo.co.uk)
Date: Mon Jul 30 2007 - 14:36:41 ART
Heh, about this. R4 to R5 bandwidth = 100, R4 to R1
bandwidth = 100, and R1 to R5 bandwidth = 100 - this
keeps them the same for ease of calculations.
Then the delay on both ends of R4 to R5 = 1000. The
delay on both ends of link R4 to R1 = 900 and finally
the delay between R1 and R5 = 3100.
This should allow the R4-R1-R5 path to meet the
feasibility condition. If you then configure the
variance 4 command you should have both paths to route
1.1.1.1 in the routing table.
Finally, make sure you have 'traffic-share balanced'
configured, this distributes traffic inversely
proportional to metrics (which in this case you should
have a ratio of 4-1.
Let me know how you go on.
Dazzler
--- Herbert Maosa <asawilunda@googlemail.com> wrote:
> I believe the ratio of the trafic load is
> proportional to the ratio of the
> Metrics. So firstly you would have to scale the
> EIGRP Metrics of the
> Ethernet and Serial links to be 4:1. Then you would
> calculate the variance
> as Variance * Best Metric >= Worst Metric. So
> basically devide the Worst
> metric by the best metric after the scaling of the
> metrics.
>
> Perhaps someone else has a better idea ?
>
> Herbert.
>
>
> On 7/30/07, ISolveSystems
> <support@isolvesystems.com> wrote:
> >
> > Hi Experts,
> > May I know what the best way to figure out what
> variance and delay values
> > I
> > need to use for the following question?
> >
> > Configure the network in such a way that traffic
> from R4 destined to
> > prefixes 1.1.1.0 is load balance out the Ehternet
> link to R5 and the FR
> > link
> > to R1.
> > Traffic should be distributed between the Eth and
> the FR links in a ratio
> > of
> > 4:1.
> >
> > R4 and R5 are connected via Ethernet. R4 connects
> to R1 via FR. R1
> > connects
> > to R5 via FR. FR connections use physical
> interfaces.
> >
> >
> > R4
> > | \
> > | \
> > | R1
> > | /
> > | /
> > R5
> > |
> > Net 1.1.1.1
> >
> >
>
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