Maximum Capacity for Using the LRM/MACsec Adapter

The following table details the maximum number of LRM/MACsec Adapters you can use. The maximum number varies according to:

Whether you are running in LRM mode only, or in LRM plus MACsec mode.
Whether you are using an auxiliary power (USB) cable to draw additional power beyond what is provided by the host switch.

Note

The figures listed assume that, in every case, both adapter ports are connected to the host switch. The adapter will not operate properly if only one port is connected to the host switch.
Unless noted otherwise, all switch models listed have SFP+ ports that can be configured for 10Gb. A 10G license upgrade is required for 10 Gb functionality, and for support for an LRM/MACsec adapter with 10G-LRM optics..
The LRM/MACsec Adapter is used only for its LRM capability. MACsec is supported natively on the ports the LRM/MACsec adapter is connected to. MACsec is not supported on the stacking ports.

¹With 1W optics modules (SR, LR, LRM, 10 km bidirectional, AOC, DAC, and most 1 Gb optics), use 0.5A auxiliary power sources.

²On 5320 Series 48-port systems, for each LRM/MACsec Adapter without auxiliary power, two additional SFP+ ports must be unused, for example:

5320 Series
48-port systems can support one LRM/MACsec Adapter without auxiliary power if two additional SFP+ ports are unused.
5320 Series
48-port systems can support two LRM/MACsec Adapters without auxiliary power if four additional SFP+ ports are unused.