Supplement 70 to ITU-T G-series Recommendations (08/2020) Supplement on sub 1 Gbit/s services transport over optical transport network
Summary
History
FOREWORD
Table of Contents
1 Scope
2 References
3 Definitions
     3.1 Terms defined elsewhere
     3.2 Terms defined in this Supplement
4 Abbreviations and acronyms
5 Conventions
6 Introduction
7 Mappings based on normative methods
     7.1 CBR mapping to ODU0
     7.2 Using SDH to aggregate low speed CBR clients prior to mapping to OTN
     7.3 Aggregating packet clients and mapping via GFP-F with linear extension
     7.4 Aggregating packet clients at layer 2 and mapping to OTN via GFP-F
     7.5 Aggregating packet clients at layer 2 and mapping to OTN
     7.6 Aggregating packet clients at layer 2, over SDH and mapping to OTN
     7.7 Circuit emulation of CBR clients over MPLS
8 Mappings based on new methods
     8.1 Method based on modified SDH constructs
          8.1.1 Motivation
          8.1.2 Introduction
          8.1.3 OSDTUG0 frame structure
          8.1.4 Mapping of OSDTUG0 into an OPU0
          8.1.5 OSDUk and OSDTUk frame format
               8.1.5.1 OSDU4 and OSDTU4 frames
               8.1.5.2 OSDU3 and OSDTU3 frames
               8.1.5.3 OSDU3 and OSDU4 overhead
               8.1.5.4 OSDU12 and OSDTU12 frames
               8.1.5.5 OSDUk (k = 12) overhead
          8.1.6 Mapping of OSDTUk into an OSDTUG0
          8.1.7 Client mapping into OSDUk