PFC (Priority Flow Control)

PFC (Priority Flow Control) (IEEE 802.1Qbb) provides backward congestion notification on Layer 2 Ethernet by sending PAUSE frame selectively based on 802.1p COS value. Initially, IEEE 802.3x PAUSE works by sending PAUSE frame for any traffic flow regardless.

lacp suspend-individual

When an end-host configured with port-channel LACP or NIC- or link-teaming, it requires the adjacent switch ports to receive LACP PDU to be able to start the negotiation and bring the port-channel to Up and Operational status. Without the end-host sending these LACP PDU, the switch ports will keep its status as down. It sounds…