A value that represents a type (and thereby the format) of a PrvtCfmMaintDomainName. The value can be one of the following: ieeeReserved(0) Reserved for definition by IEEE 802.1 recommend to not use zero unless absolutely needed. none(1) No format specified, usually because there is not (yet) a Maintenance Domain Name. In this case, a zero length OCTET STRING for the Domain Name field is acceptable. dnsLikeName(2) Domain Name like string, globally unique text string derived from a DNS name. macAddrAndUint(3) MAC address + 2-octet (unsigned) integer. charString(4) RFC2579 DisplayString, except that the character codes 0-31 (decimal) are not used. ieeeReserved(xx) Reserved for definition by IEEE 802.1 xx values can be [5..31] and [64..255] ituReserved(xx) Reserved for definition by ITU-T Y.1731 xx values range from [32..63] To support future extensions, the PrvtCfmMaintDomainNameType textual convention SHOULD NOT be sub-typed in object type definitions. It MAY be sub-typed in compliance statements in order to require only a subset of these address types for a compliant implementation. Implementations must ensure that PrvtCfmMaintDomainNameType objects and any dependent objects (e.g., PrvtCfmMaintDomainName objects) are consistent. An inconsistentValue error must be generated if an attempt to change an PrvtCfmMaintDomainNameType object would, for example, lead to an undefined PrvtCfmMaintDomainName value. In particular, PrvtCfmMaintDomainNameType/PrvtCfmMaintDomainName pairs must be changed together if the nameType changes.