Port Partitioning

On some ExtremeSwitching Universal switch models, you can configure QSFP28 ports either as single ports or as multiple, partitioned ports. In a partitioned port, with appropriate cabling, the original physical port can accommodate multiple data lanes at lower bandwidths.

The following partitioning options are available:

Table 1. QSFP28 Port Partitioning
Switch model	Port bandwidth	Port partitions
7720-32C	100 Gb or 40 Gb	Ports 1-27 and 29-32 with one of the following: One 100 Gb port (default) One 40 Gb port Two 50 Gb ports (Switch Engine only) Four 25 Gb ports Four 10 Gb ports One 1 Gb port with the 10506 QSA adaptor (both Switch Engine and Fabric Engine) Note: Port 28 cannot be partitioned and is 40/100G capable only.

For information about configuring partitioned ports, see the Switch Engine 32.4 Command Reference Guide .