Lab 56 - EIGRP Traffic Engineering with the Delay

Prerequisites: CCNP level skills.

Topology

Pic. 1 - Topology Diagram.

Icons designed by: Andrzej Szoblik - http://www.newo.pl

Task1
Configure R1 for equal cost load balancing towards R3's Loopback interfaces. R1 should all three links S0/0, S0/1 and F1/0. You can use any K-values to accomplish the goal.

Lab Solution

Task1
Configure R1 for equal cost load balancing towards R3's Loopback interfaces. R1 should all three links S0/0, S0/1 and F1/0. You can use any K-values to accomplish the goal.

Notice!
The simplest solution is to take the awkward 'bandwidth' parameter out of the equasion and manipulate the delay. This way the formula is going to look like this:

Metric = (Sum_of_all_Delays_in_microsec * 256) / 10

On All Routers:

!

router eigrp 1

 metric weight 0 0 0 1 0 0

!

Verification: All routers use Delay only (like R1 below)

Pic. 2 - K-values Factored In.

Pic. 3 - R1's EIGRP Topology (172.16.103.0)

Notice!

R2's Advertised Distance = FD; it's not a feasible successor and cannot be taken into account as the neighbor for traffic sharing with the current settings.

R1 Configuration:

!

interface Serial0/0
 ip address 10.1.123.1 255.255.255.0
 encapsulation frame-relay
 delay 2010
 serial restart-delay 0
 frame-relay map ip 10.1.123.2 103
 frame-relay map ip 10.1.123.3 103 broadcast
 no frame-relay inverse-arp
!

interface Serial0/1
 ip address 10.1.13.1 255.255.255.0
 delay 2010
 serial restart-delay 0

!

Verification:

Pic. 4 - R1's Routing Table.