Liaison statement
LS344 - Liaison on OTN Equipment (ITU-T G.798)

Submission date 2011-10-07
From ITU-T SG 15 (Greg Jones)
To Common Control and Measurement Plane (,
Response contact,,
Technical contact
Purpose For information
Attachments LS344 - Liaison on OTN Equipment (ITU-T G.798) - pdf body
LS344 - Liaison on OTN Equipment (ITU-T G.798) - pdf G798
LS344 - Liaison on OTN Equipment (ITU-T G.798) - G798 Amd1
ITU-T SG15 Q9 is pleased to inform you that Recommendation ITU-T G.798
“Characteristics of OTN Hierarchy Equipment Functional Blocks” and its
Amendment 1 have been approved.
ITU-T G.798 specifies both components and methodology that should be
used to specify OTN functionality of network elements. The components
are specified to support ODUs and client signal bit rates up to
100Gbit/s. It is used as the basis to develop ITU-T G.874 “Management
aspects of the optical transport network element”
Amendment 1 contains additional text to ITU-T G.798 to complete the
specification of the mapping of  Ethernet Rates  (40GBE and 100GBE into
ODU3 and ODU4 respectively) as well as additional management
information needed for ODU PT21 (ie. time slots of 1.25Gbit/s)
multiplexing. An AIS generator for pre-emption of extra traffic is also
added to the ODU connection functions.

Attach: ITU-T G.798 and its Amendment 1