Create a new hardware plan with the intended name and subscribe affected tenants to this hardware plan. For details, see the Allocate Replication Resources section in the Veeam Cloud Connect Guide.
Alternatively, follow these steps to rename the virtual switch of the existing hardware plan in the Veeam Cloud Connect database:
DECLARE @old_switch as varchar(50), @new_switch as varchar(50) set @old_switch = 'OLD_SWITCH_NAME' set @new_switch = 'NEW_SWITCH_NAME' update [dbo].[Backup.Model.HvHardwareQuotaNetworks] set switchName = @new_switch, name = REPLACE(name, @old_switch, @new_switch) where switchName = @old_switch