Tag :: Unidirectional

On Arista 7130 devices, the transmit and receive paths of front panel Ethernet interfaces are inherently independent. An interface can have a fully operational transmit path while the receive is down, yet the existing show interfaces output only displays a single combined link status. This can cause confusion when the interface state shows "down" even though the TX path is actively passing traffic.

Unidirectional links is a feature that configures an Ethernet interface transmit and receive paths to be independent. Specifically, the transmit path can be up or down independent of the receive path being up or down.