Summary

Recommendation ITU-T G.7041/Y.1303 defines a generic framing procedure (GFP) to delineate octet-aligned, variable-length payloads from higher-level client signals for subsequent mapping into octet-synchronous paths such as those defined in Recommendations ITU‑T G.707/Y.1322, G.8040/Y.1340 and G.709/Y.1331. This Recommendation defines:

–           frame formats for protocol data units (PDUs) transferred between GFP initiation and termination points;

–           mapping procedure for the client signals into GFP;

–           responses to certain defect conditions.

This edition adds mappings associated with carrying IEEE 802.3 10GBASE-R signals in a manner that preserves the Ethernet frame preamble and ordered set information. This information was previously described in Supplement 43 to ITU-T G-series Recommendations.