[NS : Reservoir] DMIT LAX 维护后IPv4网络不通原因及修复方案

RT，本帖记录了DMITLAX区域维护后IPv4网络不通原因及修复方案#DMIT维护通知ScheduledMaintenanceFacility:LosAngelesDataCenterScope:AllVirtualMachinesMaximumSimultaneousImpact:OneHypervisorat