cfmMdFormat

A value that represents a type (and thereby the format)
of a CfmMaintDomainName.  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 CfmMaintDomainNameType
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 CfmMaintDomainNameType
objects and any dependent objects (e.g.,
CfmMaintDomainName objects) are consistent.  An
inconsistentValue error must be generated if an attempt to
change an CfmMaintDomainNameType object would, for
example, lead to an undefined CfmMaintDomainName value.
In particular,
CfmMaintDomainNameType/CfmMaintDomainName pairs
must be changed together if the nameType changes.