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 LRM/MACsec Adapter is used only for its LRM capability. MACsec is supported natively on the ports that the LRM/MACsec adapter is connected to. MACsec is not supported on the stacking ports.
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.
Corresponding 5720-VIM-6YE port groups need to be configured to 3x10G partitions to support an LRM/MACsec adapter and 10G-LRM optics.

Table 1. Maximum Number of LRM/MACsec Adapters, by Switch Model and Connection Type
Switch Model	Mode: LRM Only		Mode: LRM and MACsec
Switch Model	Two ports no aux. power	Two ports 0.5A aux. power	Two ports aux. power¹	One port One bypass aux. power¹
5720-VIM-6YE	2	3	N/A	N/A

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