Hosts in the same partition cannot talk to each other. What do you check?
Why D is the answer
Their membership type
Limited members cannot talk to other limited members.
In detail
- Limited members cannot talk to other limited members.
- Limited members cannot talk to each other.
Use case
An illustrative scenario, not a real incident.
Two hosts share a partition but cannot talk, because both are limited members.
See it in different ways
flowchart TD A["Fabric"] --> B["PKey for tenant A"] A --> C["PKey for tenant B"] B --> D["Hosts of A only"] C --> E["Hosts of B only"]
mindmap
root((Multi-tenancy))
Ethernet
BGP-EVPN
VXLAN overlay
InfiniBand
Partition keys
Membership typeflowchart TD
Q{"Are both limited members?"}
Q -->|"Yes"| A0["They cannot communicate"]
Q -->|"No"| A1["Look elsewhere"]Key point: Check membership type.
Why the other options are wrong
- A. Their MTU setting
- MTU would give a different symptom.
- B. Their GPU model
- GPU model is unrelated.
- C. Their Slurm account and its limits
- Slurm is unrelated.