What does an out-of-band management network provide?
Why B is the answer
Access to servers separate from the data network
Operators can reach BMCs when the main network is down.
In detail
- Operators can reach BMCs when the main network is down.
- Keep it separate from the main network.
Use case
An illustrative scenario, not a real incident.
The data network fails, and operators still reach the BMCs through a separate network.
See it in different ways
mindmap
root((AI cluster))
Compute
GPU nodes
NVLink
Fabric
InfiniBand
Ethernet
Storage
High throughput
Management
Out-of-band networkmindmap
root(("Server networks"))
n1["Data network"]
n2["Workload traffic"]
n3["Out-of-band network"]
n4["BMC access"]Key point: Out-of-band gives separate access.
Why the other options are wrong
- A. Internet access for the application users
- It is not for users.
- C. Extra GPU bandwidth for each training job
- It carries no GPU traffic.
- D. Faster reads of the training dataset
- It carries no data traffic.