Methods and apparatus for load balancing across member ports for traffic egressing out of a port channel

摘要

Methods and apparatus for load balancing across member ports for traffic egressing out of a port channel are provided herein. An example method according to one implementation may include: assigning a quantized value based on current load to each of the network ports in the port channel; receiving a data packet addressed to egress through the port channel; identifying a traffic flow with which the received data packet is associated; determining whether the identified traffic flow is a new traffic flow; and selecting one of the network ports in the port channel as an egress port. Selection of the egress port may be weighted according to the quantized value of each of the network ports in the port channel.

主权项

1. A method for providing load balancing for a port channel including a plurality of network ports, comprising:
assigning a quantized value from a plurality of quantized values to each of the network ports of the plurality of network ports in the port channel, wherein the assigning is based on a ratio between a current load of the network port and a total current load of the plurality of network ports; receiving a data packet addressed to egress through the port channel; identifying a traffic flow in which the received data packet is associated with; determining whether the identified traffic flow is a new traffic flow; upon determining that the identified traffic flow is a new traffic flow, selecting a network port in the port channel as an egress port based on a selection probability of the network port, wherein the selection probability is based on the assigned quantized value of the network port, and wherein the probability of selecting each of the plurality of network ports in the port channel is a non-zero probability.