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 E2s are in an ODU1?

An ODU1 carries 192 E2s, per ITU-T G.709, ITU-T G.707 and ITU-T G.702. This path maps STM-16 into ODU1 as a client, then follows that client's tributaries.

192

E2s in an ODU1

Working

ODU1 → 1 × STM-16 → 16 × STM-1 → 3 × E3 → 4 × E2

1 × STM-16 in each ODU1 ITU-T G.709Client mappingCBR STM-16 mapped into OPU1.
16 × STM-1 in each STM-16 ITU-T G.70716 × STM-1.
3 × E3 in each STM-1 ITU-T G.707Three VC-3s, each carrying an E3.
4 × E2 in each E3 ITU-T G.702Four E2s.

1 STM-16
1 × 16 = 16 STM-1s
1 × 16 × 3 = 48 E3s
1 × 16 × 3 × 4 = 192 E2s

Leftover capacity

876.759126 Mbit/s of each ODU1 line rate (2.498775126 Gbit/s) sits outside 192 × 8.448 Mbit/s of E2 line rate (1.622016 Gbit/s). That remainder is overhead, fixed stuff or justification. It is not another whole tributary.

By bit rate only

Dividing the line rates gives 295.78, which floors to 295 E2s by bit rate only. The standard mapping is 192. Use the mapping.

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