You are planning to deploy a new VMware environment. The team leader of the networking team
has requested the ability to monitor virtual machine traffic in order to maintain the physical network
more efficiently. Which option provides this capability?
A.
Create a distributed port group and configure port mirroring
B.
Create a standard port group and use Cisco Discover Protocol (CDP)
C.
Create a standard port group and use Link Layer Discovery Protocol (LLDP)
D.
Create a distributed port group and use Network I/O Control (NIOC)
Explanation:
http://blogs.vmware.com/vsphere/2013/01/vsphere-5-1-vds-feature-enhancementsport-mirroring-part-1.html
I don’t think that port mirroring will do it. Port mirroring is used on network devices to troubleshoot a problem, for example a Firewall dropping packets; you will mirror the traffic and performed a packet capture. This feature is never intended to “maintain the physical network more efficiently” (troubleshoot – YES).
I think is answer “c” LLDP. That will allow the Network admons to run statistics and identify VM traffic. Predicting traffic impacts , if vmotion is used.
http://rickardnobel.se/troubleshooting-esxi-networking-with-lldp/
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But LLDP can’t be used on standard vSwitch so “C” is wrong and “A” is the correct answer
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Correct Answer is A
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LLDP provides info but not for monitoring. ‘A’ must be right
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Ans is: A
Port Mirroring monitors the traffic traversing the link.
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