Meanwhile I found a document which described the order of initialization steps of ACI fabric and APIC cluster. So I could self solve my problem.
Dear Madam/Sir,
I'm new in ACI and try to establish a controller cluster 3.0 consistig of three controllers before I'll switch on the fabric switches for discovery. I wanted to build the cluster first via Out-of-Band management network without fabric and then I would start the Spine and Leafe switches for the first discovery. The initial setup of CIMC and Controller was finished. All three devices are reachable over Out-of-Band management (CIMC and APIC). I'm using the following documentation:
b_APIC_Basic_Config_Guide_3_x.pdf
b_APIC_Getting_Started_Guide_Rel_3_x.pdf
In the last one I found:
"About Fabric Initialization"
"Note Before you can build a fabric, you must have already created an APIC cluster over the out-of-band network."
That covers my opinion, and I expected to get a APIC cluster via Out-of-Band network but the controllers didn't connect each other. I tried to use LLDP at the Out-of-Band switches, but nothing happened.
What can I do? Is it possible to use Out-of-Band management network for APIC cluster building?
Thank You,
Uwe
