ICL interface is not working for one Node

[AmritaS]

Cluster having 2 nodes, Node 1 and Node 2, After DC Powered down and power Up activity, result of command "cluster peer show " showing unavailable in availability column for remote clusters. replication jobs are failing. We can see from Node 2 interface Remote cluster IPs are reachable but not from Node 1. And all volumes are residing in node 1. My doubt is why snapmirror job is failing though from Node 2 Remote cluster Ip's are reachable? why cluster peer show commands showing unavailable though from node 2 Remote cluster IP's are reachable?

[Ontapforrum]

Unavailable - The peer cluster availability status will be Unavailable only if all the nodes in the local cluster are not able to contact any node in the peer cluster.

Please follow this kb.
Cluster peer show - IP address unhealthy: Resolution Guide
https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/Cluster_peer_show__-_IP_address_unhealthy%3A_Resolution_Guide

Also, what Ontap version it is? 

Note: If it's urgent, you can reach out to NetApp support by raising a ticket.