Technical data

TraverseEdge 2020 Applications and Engineering Guide, Chapter 6: Bandwidth Management
Page 6-8 Turin Networks Release 5.0.x
6.5.5 LEI Configuration vs. Tributary Shelf Support
The shelf combinations that can be supported off of a single TE-2020 Main Shelf are numerous. For exam-
ple, Figure 6-8 shows three tributary shelfs hanging off of one TE-2020 Main Shelf utilizing all three of the
LEIs. Shown in order from top to bottom is the TE-2020 Main Shelf, and OTS2, an ETS1, and an ETS2.
Each tributary shelf is capable of connecting 48 STS-1s to the Main Shelf and the OTS2 can have one
more LEI connected to the Main Shelf if future needs arise for more bandwidth. Each shelf can have much
more bandwidth traversing it utilizing hairpin connections from port to port on the same shelf.
Figure 6-8 TE-2020 Main Shelf, OTS2 Shelf, ETS1 Shelf, ETS2 Shelf LEI Mapping
The following table shows the combination of shelves that can be supported based on LEI connectivity
restrictions.