Quantity is how many containers you have. The result is how many tributaries fit, the path, and the leftover line rate. The choices stay in the URL, so you can share them.
Result: standard mapping
How many STM-64s are in a STM-256?
A STM-256 carries 4 STM-64s, per ITU-T G.707.
4
STM-64s in a STM-256
Working
STM-256 → 4 × STM-64
- 4 × STM-64 in each STM-256 ITU-T G.7074 × STM-64.
- 4 STM-64s
Leftover capacity
0 bit/s of each STM-256 line rate (39.813120 Gbit/s) sits outside 4 × 9.953280 Gbit/s of STM-64 line rate (39.813120 Gbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.
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