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Transport aspects 2

Table 11-1.1 – System-related primitives at the γ_MGMT reference point

Primitive name Direction Description

Link state Control parameters provided by the ME-O to for Clause 12.1.1,
transition clause 13.4
ME-O → FME the FTU-O in support of the requested link state
request
transition.
parameters
System-related data transfer parameters
System-related Data to be transferred to the far-end ME and Clause 11.2.2.4.1
data and associated parameters provided by the ME of one
ME → FME
associated FTU to be transferred to the ME of the far-end
FME → ME
parameters to FTU. The transfer is facilitated by primitives
be transferred specified in Table 11-1.1.
NOTE – The VCE or TCE may be involved in generating the ME to FTU-O information flow to coordinate timing and control
parameters over multiple lines.
*.request(parameter) ME → FTU Requests the FTU to send the system-related OAM data
(represented as a parameter) to the far-end FTU.
*.confirm FTU → ME Confirms that the requested data has been scheduled for
transmission over eoc or RMC and that the FTU is ready
to accept the next request.
*.indicate(parameter) FTU → ME Indicates reception of any system-related OAM data
(represented as a parameter) from the far-end FTU.
NOTE: The specified set and format of primitives shall be applied to any eoc/RMC command (denoted as *) that provides a
transparent channel between the near-end ME and the far-end ME to convey system-related primitives.

11.2 Management functions and procedures over eoc
11.2.1 eoc transmission method

The eoc is established between the peer TPS-TC management entities and provides exchange of eoc
packets between the FTU-O and FTU-R. Each eoc packet is formatted as defined in clause 11.2.2.1 and
carries one or more eoc messages formatted as defined in clause 11.2.2.2. The transmission protocol that
defines eoc message exchange between peer FTUs is defined in clause 11.2.2.3.
11.2.1.1 eoc packet format

The eoc packet may contain one or more eoc messages. The length of an eoc packet containing m eoc
messages with the lengths of P1, P2, … Pm bytes is: P = P1 + P2 +… Pm +2m +2 bytes, where 2m
corresponds to the 2-byte control field per message, and the final two bytes are for the frame check
sequence. The value of P is determined by the FME. The maximum value of P is 1 024 bytes.
The format of an eoc packet shall be as shown in Figure 11-2. Each message should have a format defined
in clause 11.2.2.2 and could be an eoc message or an eoc message segment. Only one segment of a
particular eoc message shall be included in a packet.

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