vdsm bootstrap/host registration fails in RHEV with error "ERROR vds_bootstrap 1006 VDS validation failed" and "ConfigNetworkError: (22, 'Must specify netmask to configure ip for network')" , , if 'PREFIX ' is used for network configuration

Issue

• Attempt to add the host to RHEV-M 3.1 with RHEL 6.3 vdsm fails if network interface is configured with PREFIX option instead of NETMASK option.

  1. configure network interface with PREFIX instead of NETMASK in /etc/sysconfig/network-scripts/ifcfg-eth0
  2. try to add host to RHEV 3.1

• It fails with below error:

Failed to install 3.1 Host: Step: SetNetworking; Details: addNetwork error trying to add management bridge.