IRF physical interface requirements
Candidate IRF physical interfaces
Use the following ports on the 5940 switch series for IRF links:
10GBase-T Ethernet ports.
SFP+ ports.
QSFP+ ports.
QSFP28 ports.
Selecting transceiver modules and cables
When you select transceiver modules and cables, follow these restrictions and guidelines:
Use Category 6A (or above) twisted-pair cables to connect 10GBase-T Ethernet ports in a short distance.
Use SFP+, QSFP+, or QSFP28 transceiver modules and fibers to connect SFP+, QSFP+, or QSFP28 ports for a long-distance connection.
Use SFP+, QSFP+, QSFP+ to SFP+, or QSFP28 DAC cables to connect SFP+, QSFP+, or QSFP28 ports for a short-distance connection.
The transceiver modules at the two ends of an IRF link must be the same type.
For more information about the transceiver modules and DAC cables, see the switch installation guide and HPE Comware-Based Devices Transceiver Modules User Guide.
![[NOTE: ]](images/note.png) | NOTE: The transceiver modules and DAC cables available for the switch are subject to change over time. For the most up-to-date list of transceiver modules and DAC cables, contact your Hewlett Packard Enterprise sales representative. | |