Is this a new setup? If the APICs have not formed a fully-fit cluster, then it is expected to not be able to gain SSH/GUI access with the admin user on APICs 2 and 3. They must join APIC 1 in a cluster first, so that they can pull the admin password ...

In short, No.  This fault only pertains to interfaces which are not connected to spines, leafs, APICs  and ( have no access policies configured or have access policies configured but the interface does not have any EPG association).  If a link were t...

Clement,  The consumer leaf will have a pervasive route for the provider BD installed (nexthop = Spine IPv4 proxy) due to the route leaking. If the provider endpoint isn't learned on the consumer leaf, then it will simply punt the packet to spines wi...

Clement,  Looks like you've gotten some good feedback for this topic. I would like to add a simple note in regards to minimum contract requirements for inter-VRF route leaking.    Let's assume there are 2 subnets in 2 different VRFs which need to be ...

Hi Yoshi,  I would recommend that you check out the link below. https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/aci-fundamentals/b_ACI-Fundamentals/b_ACI-Fundamentals_chapter_010001.html#concept_450C8C73C1DE4A4EAF6390E862BD9...