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-4s are in an ODU1?
An ODU1 carries 4 STM-4s, per ITU-T G.709 and ITU-T G.707. This path maps STM-16 into ODU1 as a client, then follows that client's tributaries.
4
STM-4s in an ODU1
Working
ODU1 → 1 × STM-16 → 4 × STM-4
- 1 × STM-16 in each ODU1 ITU-T G.709Client mappingCBR STM-16 mapped into OPU1.
- 4 × STM-4 in each STM-16 ITU-T G.7074 × STM-4.
- 1 STM-16
- 1 × 4 = 4 STM-4s
Leftover capacity
10.455126 Mbit/s of each ODU1 line rate (2.498775126 Gbit/s) sits outside 4 × 622.080 Mbit/s of STM-4 line rate (2.488320 Gbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.
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