An NSX Administrator is examining traffic on the network shown below.
What is the packet flow when VM1 communicates to VM5?
A.
Host A will perform a destination lookup, route the packet, switch the packet onto segment 5002, then
encapsulate and send the packet to Host C.
B.
Host A will perform a destination lookup, switch the packet onto segment 5002, route the packet, then
encapsulate the packet and send it to the DLR control VM.
C.
Host A will encapsulate the packet, send the encapsulated packet to host C, Host C will perform a
destination lookup and switch the packet onto segment 5002.
D.
Host A will encapsulate the packet, perform a destination lookup, route the packet to the DLR control VM,
the control DLR will bridge the packet onto segment 5002.
D is incorrect.
DLR control VM is a control plane so traffic will not forward by DLR control VM
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3
Starter is correct, which rules out B too.
That leaves A or C. C doesn’t seem to make sense. How can host A know to send the packet to host C before any destination lookup is done?
The official cert guide book states that the logical router copy that is local to the source VM performs the routing, so I think it’s A.
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A
25
0
A for me.
5
0
Absolutely A is true.
On this URL, please take a look picture.This picture show us the packet flow.
before change VXLAN ID from 5000 to 5001, the packet reaches to DLR inside ESXi hosts.
https://docs.vmware.com/en/VMware-NSX-for-vSphere/6.2/com.vmware.nsx.troubleshooting.doc/GUID-3D5B1AAC-6408-4B41-8691-7D5D51A51D23.html
so, A is correct answer.
4
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Correct is:
-Host A will perform a destination lookup, route the packet, switch the packet onto segment 5002, then
encapsulate and send the packet to Host C.
2
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