Nexus 9k 9.3(9) Spine Leaf - interface not connected

[sledge121@gmail.com]

Hi guys

I have a Nexus 9k lab running in a spine/leaf topology and all is good. Then I power on the lab the next day and some of the Nexus interfaces are down/not connected, the only way to fix is it either reboot the Nexus or reboot EVE. Have any of you seen this before?

Thanks
Rick

[rusty725]

Which Eve version, where is Eve installed, how many cores and ram assigned to Eve, how many and what nodes are running ? Which nxos version is it ?

[sledge121@gmail.com]

Hi Rusty

Thanks for replying and showing interest.

NXOS 9.3(9)
EVE 6.2.0-4-Community running as VM on ESXI.
Hypervisor ESXI 8.0 Update 2
8 cores
52GB RAM assigned to EVE

2 Spine 8GB each
2 Leaf 8GB each
2 IOSv 'hosts' 1GB each.

Thanks
Rick

[rusty725]

you need to increase cpu cores to 12

[sledge121@gmail.com]

Thanks, I've increased it to 12. Is using 12 cores a documented thing or do you just know it from experience?

[Uldis (UD)]

Lets count your lab CPU!
4x Nexus each 2 CPU =8
2x vIOS =2 CPU
Total 10 CPU need, and your eve has only 8

It is myth when people are saying: I have 128GB RAM and it is good server and can run a lot. It is not true.

The EVE-NG Server hardware priorities are:
1. CPU, and more CPU cores you have assigned for EVE server as better.
2. Fast HDD drive like SSD
3. and only then is RAM

If you have 4 CPU assigned for EVE server and it also has 128GB RAM, your RAM becomes useless, because CPU cannot hold the labs

[rusty725]

Thanks, I've increased it to 12. Is using 12 cores a documented thing or do you just know it from experience?

check the paragraph EVE Pro users’ consumed resources
here https://www.eve-ng.net/index.php/docume ... ing-model/

[sledge121@gmail.com]

Hi

Its still happening even on 12 cores. I just started a single Nexus 9000v in the lab and the interfaces are as below

Eth1/1 -- eth routed down Link not connected auto(D) --
Eth1/2 -- eth routed down Link not connected auto(D) --

Is there a manual workaround for this or anything I can check to see why it might be happening?

Thanks

[rusty725]

export configs, make them startup configs, wipe nodes and try again.
You should also upgrade Eve to the latest version 6.2-0.6

[sledge121@gmail.com]

Awesome, that's got all my interfaces up again.

Thanks for your help.