Intel® Ethernet 800 Series Linux Flow Control
Configuration Guide for RDMA Use Cases
Separating and Prioritizing Traffic Streams
For networks carrying multiple traffic types, you typically want:
This can change depending on specific applications.
Example configuration:
- For NICs with four or fewer ports, the
800 Series adapters support up to eight Traffic Classes (TCs) per port. For NIC with more than four ports, the number of supported TCs is limited to four per interface. - Traffic classes must start at zero and must be contiguous (0, 1, 2, 3, ... ).
- ETS bandwidth allocations must total 100%.
- Multiple priorities might map to the same TC. For example, TC0 can contain prio=0,1,2,3,4,5,6,7. However, a given priority might map to only a single TC (like prio 0 cannot be in both TC0 and TC1).