SQL Server Cluster Public/Private Network

HI All,

I have some doubt in Window server fail-over cluster...Please advise..

Scenario :- I have 8 node cluster, with node and disk majority , with two networks (public and private). Case 1. If Public network gets down then what would happen...Will a failover initiated or not? Case 2. If active node is not able to communicate to the public network but other nodes could communicate to the public network...what would happen..

Thanks In Advance

Thanks