The value of iesIfType specifies the type of this IES interface. This object can only be set at row creation time. 'service' - This is a normal IES interface. 'subscriber' - This is a subscriber interface, under which multiple group interfaces can be configured. 'group' - This is a group interface, belonging to a parent subscriber interface. 'redundant' - This is a redundant interface, used for dual homing. 'cem' - This is a CEM interface, used for IP/UDP encapsulated CEM IES interface. 'ipsec' - This is an IPsec interface, used for IPsec tunneling. 'ipMirror' - This is an IP interface, used for IP Mirroring. 'video' - This is a video IP interface. 'aarp' - This is an AARP interface, used for asymmetry removal.