Home » Cisco » 300-160 » What is the default load-balancing hash mechanism for traffic on FCoE port channels?
You have a Cisco Nexus 5500 Series switch. What is the default load-balancing hash mechanism for traffic on FCoE port channels?
A. the source MAC address
B. the source IP address and the destination IP address
C. the source MAC address and the destination MAC address
D. the source TCP or UDP port and the destination TCP or UDP port
Correct Answer: B
Explanation/Reference:
Explanation: On Nexus 5500 the default load balancing mechanism on the LACP portchannel for FCoE traffic is "source-destination". In this default state, all the FCoE traffic takes the same link in the port-channel when the Nexus 5500 forwards frames over FCoE VE ports. In order to enable all links to be used in the port-channel for FCoE traffic, enter the port-channel load-balance ethernet source-dest-port command to configure Nexus 5500 "port-channel load balancing" to "source-dest-port". With this configuration "sourcedestination-oxid" load balancing is used for FCoE traffic.
