SQL Clustering


We configured 2 node multi subnet clustering. One is in dubai, and one is Abudhabi. There are total 6 networks.

We got a alert that Network6 got failure.Below is the error message.

Custer network 'Network6' is down. none of the available nodes can communicate using this network. Run the validate a configuration wizard to check your network configuration.If the condiation persists,check for hardware or software errors related to the network adapter.Also check for failures in any other network components to which the node is connected such hubs,switchhes,or bridges.

I do not have much idea on clustering. please help me to to resolve the issues.
Pls guide.