Result: standard mapping
How many STM-16s are in a STM-64?
A STM-64 carries 4 STM-16s, per ITU-T G.707.
4
STM-16s in a STM-64
Working
STM-64 → 4 × STM-16
- 4 × STM-16 in each STM-64 ITU-T G.7074 × STM-16.
- 4 STM-16s
Leftover capacity
0 bit/s of each STM-64 line rate (9.953280 Gbit/s) sits outside 4 × 2.488320 Gbit/s of STM-16 line rate (9.953280 Gbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.