Home » VMware » VCP550D » Which two configuration changes should the administrator make?
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The administrator needs to modify the problematic configuration shown in the exhibit to meet the following requirements:
Uplink ports must connect to a 2-port Etherchannel connection
Traffic must pass, even in the event of a port failure.
Which two configuration changes should the administrator make? (Choose two.)
A. Change the Load balancing algorithm to Route based on ip hash
B. Change the Load balancing algorithm to Route based on physical NIC load
C. Move Uplink 1 into Active Uplinks and Uplink 2 into Standby Uplinks
D. Move both uplinks into the Active Uplinks
Correct Answer: AD
Explanation/Reference:
Explanation:
A: Route based on IP hash is a load balancing policy that can be used when using an EthernetChannel and it is in essence a hashing algorithm that determines the physical path based on the source and destination IP addresses of the virtual machine traffic.
D: Each time a VM is powered on, it’s assigned to an uplink and continues to use that uplink until it’s power-cycled or until the uplink fails and network traffic is passed to one of the other active uplinks in the virtual switch (or the port group). Thus if both uplinks are moved into the Active uplinks then network traffic will be able to pass even if there is port failure.
Incorrect Answers:
B: Route based on physical NIC load is an additional load balancing option offered by vDSwitches that is not available to vSwitches.
C: Standby uplinks is used when an active adapter’s connectivity is down. And when making use of IP-hash load balancing you cannot use standby uplinks, it has to be active uplinks that should be configured.
References:
Cartwright, H., VMware vSphere 5.x Datacenter Design Cookbook, Packt Publishing, Birmingham, 2014, p. 104