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 ODU3?
An ODU3 carries 64 STM-4s, per ITU-T G.709 and ITU-T G.707. This path maps STM-256 into ODU3 as a client, then follows that client's tributaries.
64
STM-4s in an ODU3
Working
ODU3 → 1 × STM-256 → 64 × STM-4
- 1 × STM-256 in each ODU3 ITU-T G.709Client mappingCBR STM-256 mapped into OPU3.
- 64 × STM-4 in each STM-256 ITU-T G.70764 × STM-4.
- 1 STM-256
- 1 × 64 = 64 STM-4s
Leftover capacity
506.098983 Mbit/s of each ODU3 line rate (40.319218983 Gbit/s) sits outside 64 × 622.080 Mbit/s of STM-4 line rate (39.813120 Gbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.
Share this result. Pairing page