Technical data

TraverseEdge 2020 Applications and Engineering Guide, Chapter 3: System Applications
Release 5.0.x Turin Networks Page 3-65
Figure 3-59 Transparent DCCs passing through two TE-2020 Main Shelves
3.13.1 DCC Applications
The DCC bytes in the SONET overhead are the physical layer mechanism used to deliver packets from NE
to NE. Within each SONET frame, there exist three DCC bytes in the section overhead and nine DCC
bytes in the line overhead. The TE-2020 has the option of using either the section or line DCC bytes for
NE to NE transport. In addition, the DCC bytes will be bonded across multiple SONET frames and STS-1s
to create a larger communications pipe.
Refer to Figure 3-60 for the location of the DCC bytes in the SONET overhead.