Re: Using EIGRP Variance

As others have said the second route has to meet the Feasibility Condition
to be a Feasible successor or to be included among Un-Equal Cost path.

You have an interesting Weight setting that would not consider delay.

*metric weights 0 1 0 0 0 0*

Your setting only considers minimum bandwidth in the path. That is why your
Advertised distance of the successor route is equal to the Total Distance
to Destination. This has constituted a constraint in your design.

Based on this Weight setting you may want to
1. Set the bandwidth to match and use *equal cost load balancing* or
2. If you must use unequal cost lad balancing. *Fix the weight* setting to
default to consider delay (0 1 0 1 0 0) then you will be able to manipulate
the metric to fit in between the Advertised Distance and Total Distance of
the Successor's route.

On 13 May 2012 16:24, Shahid Mushtaq <bxperts_at_gmail.com> wrote:

> Dear Forum,
>
>
>
> I am facing the issue with EIGRP Un-Equal cost load balancing. Even by
> using
> variance the link with low cost is not installed inside routing table.
>
>
>
> Below is the EIGRP topology table and the configuration.
>
>
>
> ================================
>
> R6#show ip eigrp topology 10.10.24.0 255.255.255.0
>
> IP-EIGRP (AS 100): Topology entry for 10.10.24.0/24
>
> State is Passive, Query origin flag is 1, 1 Successor(s), FD is 624896
>
> Routing Descriptor Blocks:
>
> 10.10.1.5 (FastEthernet0/0), from 10.10.1.5, Send flag is 0x0
>
> Composite metric is (624896/624896), Route is Internal
>
> Vector metric:
>
> Minimum bandwidth is 4096 Kbit
>
> Total delay is 3000 microseconds
>
> Reliability is 255/255
>
> Load is 1/255
>
> Minimum MTU is 1476
>
> Hop count is 2
>
> 10.10.1.3 (FastEthernet0/0), from 10.10.1.3, Send flag is 0x0
>
> Composite metric is (833280/833280), Route is Internal
>
> Vector metric:
>
> Minimum bandwidth is 3072 Kbit
>
> Total delay is 3000 microseconds
>
> Reliability is 255/255
>
> Load is 1/255
>
> Minimum MTU is 1500
>
> Hop count is 2
>
> ==========================================
>
> R6#sh run | s eigrp
>
> router eigrp 100
>
> variance 2
>
> network 10.10.1.1 0.0.0.0
>
> metric weights 0 1 0 0 0 0
>
> no auto-summary
>
> neighbor 10.10.1.5 FastEthernet0/0
>
> neighbor 10.10.1.3 FastEthernet0/0
>
> =========================================
>
>
>
> Regards,
>
>
>
>
> Shahid
>
>
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