I am using GNS3 For a topology as in attachment. I configure EIGRP on all routers. R! and R2 has 2 link with same bandwidth (1544). R1 routing table show both path due to same metric. But when i change bandwidth (3544) on s0/1 on R1, metric of that link does not change. R1 remain show two path.
But when i Configure same topology with all fast ethernet link, the metric changes on bandwidth change of F0/0 on R1 and it show only one path after bandwidth change.
I assume you are talking about the route from R1 to R6.
Remember that EIGRP considers the lowest bandwidth along the path. The fact that you increase a link's bandwidth may not change the metric at all if there is another bottleneck on the path. In your topology, the bottleneck still remains on the R2/R6 link, and increasing the link's bandwidth on R1 will not influence it. That is most probably the reason why you don't see the total metric change.
Try, however, lowering the bandwidth on R1/R2 link under 1544. That should move the bottleneck to this link and then, you should see a change.
The speed is unknown to EIGRP unless it also changes the bandwidth value, which is reported to EIGRP. I also strongly agree with the earlier responder who stated that delay is a better attribute to change to influence path selection.
On another note, it's best to change delay instead of bandwidth outside of a lab environment. Bandwidth statements are used in other calculations like qos and changing bandwidth could impact those types of decisions negatively.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
Im studying the 100-105 book by Odom and am currently on the topic of Port security. I purchased a used 2960 and I'm trying to follow a...
While deploying a number of 18xx/2802/3802 model access points (APs), which run AP-COS as their operating platform. It can be observed on some occasions that while many of their access points were able to join the fabric WLC withou...
I am going to design and build an LAN network under a tunnel underground with long distance between the switches.
I will have 2 Catalyst switches and 8 Industrial IE3000, and they will be connected with fiber.
For now I am planning on use Layer-2 s...