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CCIE DataCenter Discussion

CCIE DataCenter Written & Lab Exam : Discussion & Sharing

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  1. shyam2
    July 24, 2019 at 7:11 pm

    Thanks CHgeek, but with your suggested changes there will be only one link from 7ks to 5ks.

  2. CHgeek
    July 24, 2019 at 7:14 pm

    From N7Ks you have 2 links to each N5Ks = total FP 4 links

    With ECMP max 2 links you force ECMP down to two links and to make sure you have 1 connection to each N5K in ECMP you set the metric for one of each links to N5Ks higher.

  3. desertlotus
    July 24, 2019 at 7:28 pm

    With FP – the cost do not need to be adjusted if the links support the desired speed. Load balancing is automatically done. Hence ECMP. Messing with the cost can be tricky… I suggest changing ONLY if there’s a need to traffic engineer. Other than that – leave it alone

  4. CHgeek
    July 24, 2019 at 7:28 pm

    Hi desertlotus,

    the question asks you to make sure that from N7Ks one link of each N5K is elected to be in ECMP of total of 4 links.


  5. desertlotus
    July 24, 2019 at 7:29 pm

    Does anyone agree or disagree? Did anyone do this?

  6. caia
    July 24, 2019 at 7:30 pm

    UCS FI Question. So looking at the UCSM Equipment tab I noticed it can be either end-host mode or switching mode for BOTH ethernet and FC….

    So my question is : What is the difference with respect to function and which is default and preferred for the lab.

  7. dirt
    July 24, 2019 at 7:32 pm

    In Endhost mode, the FI appears to be a single host with a lot of MAC addresses (and/or WWPNs) to upstream switches. This avoids things like spanning tree.

    In switching mode, the FIs act as switches and participate in spanning tree, take an FC domain, etc. The two can be set independently.

  8. lithium2k
    July 24, 2019 at 7:32 pm

    Does anyone know of a way to pass a vlan on a trunk without allowing it? I tried setting the native vlan on both sides and removing the native vlan from the allowed list but it didn’t work.

  9. casa
    July 24, 2019 at 7:33 pm

    permit all and remove the unwanted ones 😉

    Example for permit vlan 100 without permit vlan 100:

    no sw trunk permit (or sw tr permit all)
    sw tr allowed vlan remove 1-99, 101-4094

  10. Anonymous
    July 24, 2019 at 7:33 pm

    No more like you are explicitly told what vlans are allowed. Like only allow vlans X-X

  11. Hinf
    August 3, 2019 at 12:48 am

    Lab2 links are deleted , anybody pls share again

  12. Plunp
    March 12, 2020 at 4:36 am

    Is there anybody who can share the labs wb ?

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