Why check transceiver firmware as well as switch firmware?
Why B is the answer
Transceivers run their own firmware, which can affect links
Transceivers run their own firmware, so check it as well as switch firmware.
In detail
- Transceivers run firmware that can affect links.
- They run their own firmware.
Use case
An illustrative scenario, not a real incident.
A transceiver with old firmware causes link problems that switch checks miss.
See it in different ways
flowchart TD A["Supported release set"] --> B["GPU and HGX"] A --> C["NIC and BlueField"] A --> D["Switches"] A --> E["Transceivers"]
mindmap
root((Verification))
Compute
HPL
ClusterKit
Fabric
NCCL
Signal quality
Versions
Switches
BlueField
Transceivers
Storage
fiomindmap
root(("Link firmware"))
n1["Check"]
n2["Switch"]
n3["Transceiver"]Key point: Transceiver firmware can affect links.
Why the other options are wrong
- A. Transceivers hold the driver for each of the GPUs
- They hold no GPU drivers.
- C. Transceivers store the BCM head node's configuration
- They store no BCM settings.
- D. Transceivers schedule Slurm jobs on each of the nodes
- They do not schedule jobs.