The Out-Port Algorithm

The out-port algorithm determines the criteria to be used for data forwarding port selection. Supported out-port algorithms are:

• Destination IP address and Source IP address (dip-sip). This is the most finely tuned criteria in that a port will be assigned based upon a specific IP address combination for the flow. All flows for this IP address combination transit the assigned physical port (S-, K-, and 7100-Series).
• Destination MAC address and Source MAC address (da-sa). This criteria is less finely tuned in that a port will be assigned based upon the MAC address combination for the flow. All flows for this MAC address combination transit the assigned port (S-, K-, and 7100-Series).
• Simple round robin (round-robin). This is the least finely tuned criteria in that a port is assigned based upon the next port in a round robin sequence with no consideration to the source or destination of the flow(S-, K-Series).
  

  Note

  The round robin out-port algorithm should not be assigned if fragmented frames exist in the network. Use of round robin can result in the fragments being sent out different ports, causing out of order packets.