Hi Kaleb, thank you once again for you support.
we have taken the tcpdump and have analysed and are in process of understanding the same
more.
For your reference kindly find the same as from the link :
https://drive.google.com/drive/folders/1bKqlT7wO0gf9mVHyfsrAeZQudtVWnR_B?...
it has "tar.gz" directory which will have tcpdump of both the nodes nfsnode1 and
ndsnode2.
Also for the reference I have added one text file in the same link which will show
some-time stamps and ARP during the fail-over.
we will also update in case we get any input from the wireshark log.
hopeful to hear from you as well.