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Forum Replies

  1. Is there any reason in a real world deployment you might not want to disable BW? It seems more deterministic to use just BW.

  2. Hi William,

    As Rene has mentioned in the lesson, Cisco by default has Bandwidth and delay enabled while load and reliability are disabled as they change dynamically and Cisco recommended us to not enable them.

    So in other term, Cisco wanted to say keep BW and delay only active. In the real world, I don’t see any reason to disable BW & delay. In case you want to disable any of them then it is better to disable the delay and keep the bandwidth enabled because the delay is calculated based on the sum of delays in the path as per the below formula’s

    Metric = band

    ... Continue reading in our forum

  3. Hi William,
    The calculation is sum of all the delays and the lowest bandwidth.
    So if you only enable the bandwidth then essentially the path length is not taken into consideration.
    Usually you would prefer a shortest path if all the bandwidths are the same.

    Stuart

  4. Hi, Rene.

    I was reading and researching on Google about the K6, and they say it represents jittler and energy. Jittler makes sense, but energy can’t understand. Are you going to use electricity as a metric? LOL

    Would you know clearly how to explain the real need of K6 and how the metric is calculated?

  5. Hi Stefanio,

    As weird as it sounds, that’s exactly what they intend with energy yes :smile:

    Here’s an excerpt from RFC 7868:

    https://tools.ietf.org/html/rfc7868#page-41

    5.5.4.2. Energy

    Use of Energy-based Path Selection results in paths with the lowest
    energy usage being selected in a loop-free and deterministic manner.
    The amount of energy used is accumulative and has results in a higher
    aggregate metric than those having lower energy.

    Presently, EIGRP does not report energy usage, and as such the
    default value will be zero (0).

    On the Cisco site, you can find thi

    ... Continue reading in our forum

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