Port Subdivisions

On some Extreme Networks switch models, you can configure QSFP28 ports either as single ports or as multiple, partitioned ports in Switch Engine, or channelized ports in Fabric Engine. In a partitioned or channelized port, with appropriate cabling, the original physical port can accommodate multiple data lanes at lower bandwidths. Ports are not partitioned by default.

The following options are available:

Table 1. Port Partitioning/Channelization
DevicePort BandwidthPort Partitions/Channels
7720-32C100 Gb or 40 GbPorts 1-27 and 29-32 with one of the following:
  • One 100 Gb port (default)
  • One 40 Gb port
  • 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 Command References for your version of the Switch Engine operating system, or the Fabric Engine Command References for your version of the Fabric Engine operating system.

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