Octet string which defines the service type and value that maintenance points in the MEG reside and operate on. Expected format: First octet represents the overall format and order of service types. Subsequent octets represent list of service values. The order of the service values in the list must match the order specified by the first octet. The number of octets for an entry in the list depends on the type of service. For VLAN tagged services the number of required octets is 2 for each tag. Options for the first octet are: untagged (1) single-tagged s-tag (2) single-tagged c-tag (3) single-tagged ce-tag (4) double-tagged s-tag c-tag (5) double-tagged s-tag ce-tag (6) triple-tagged s-tag c-tag ce-tag (7) Example of a MP residing on a untagged service: octet string = 0x01 Example of a MP residing on a double-tagged s-tag ce-tag service with an s-tag value of 1000 and ce-tag value of 200 octet string = 0x06, 0x03, 0xE8, 0x00, 0xC8 Example of a MP residing on a single-tagged s-tag service having an s-tag value of 1000: octet string = 0x02, 0x03, 0xE8