A VSS is configured with two uplinks and assigned a load balancing policy route based on a virtual port ID. What are two potential disadvantages of this configuration? (Choose two.)
A.
A VM with a single MAC address is limited to the speed of the uplink associated with the relevant port ID.
B.
Higher resource consumption compared to other load balancing algorithms will occur.
C.
The virtual switch is unaware of uplink load and uplinks might become overloaded.
D.
The NIC with less load is more likely to be chosen if port IDs match.
E.
ESXi will use NIOC to attempt to mitigate network congestion when an uplink becomes saturated.
A is poorly worded (or meant to be tricky) because it refers to MAC address. The docs refer to a VM with only one vnic, but saying "only one MAC address" essentially means the same thing. So A is correct. And of course the other correct one is C.
A & C are correct.
https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.networking.doc/GUID-A4F1BF4B-8199-45A1-9578-1E4B6B08DAB0.html
Disadvantages
- The virtual switch is not aware of the traffic load on the uplinks and it does not load balance the traffic to uplinks that are less used.
- The bandwidth that is available to a virtual machine is limited to the speed of the uplink that is associated with the relevant port ID, unless the virtual machine has more than one virtual NIC.
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