Port and Priority Based Flow Control Mechanism for Lossless Ethernet

A method implemented by a network component comprising:

• receiving from an edge switch information about a plurality of end system facing ports of the edge switch;
• and
• associating a plurality of data forwarding queues at an aggregation/core switch coupled to the edge switch with the plurality of end system facing ports of the edge switch.

An apparatus comprising:

• an edge switch comprising a plurality of end system facing ports and configured to couple to a plurality of end systems via the end system facing ports and to an aggregation/core switch and to send information about the end system facing ports to the aggregation/core switch, wherein the information about the end system facing ports is used to associate the end system facing ports with a plurality of corresponding queues at the aggregation/core switch.