What does InfiniBand adaptive routing do?
Why B is the answer
Selects paths based on congestion
It adjusts paths as load changes.
In detail
- It adjusts paths as load changes.
- It adjusts as load changes.
Use case
An illustrative scenario, not a real incident.
A path grows congested, and adaptive routing selects another.
See it in different ways
mindmap
root((InfiniBand))
Control
Subnet manager
Traffic
Service levels
Virtual lanes
Adaptive routing
Performance
SHARP
Fat tree
Management
UFMflowchart TD
Q{"Is the path congested?"}
Q -->|"Yes"| A0["Choose another"]
Q -->|"No"| A1["Continue"]Key point: Adaptive routing avoids congestion.
Why the other options are wrong
- A. Stops the SM from running on the fabric
- The SM keeps running.
- C. Assigns a fixed path to each flow for good
- That is static routing.
- D. Lowers the link speed on busy ports
- It does not lower speed.