ODU0 Definition

Smallest container defined in G.709 (OTN Standard) 1.25G container size (specifically 1.244160 Gbit/s 20ppm) Established in October 2009 for transport of 1000BASE-X (Gigabit Ethernet) Sized to fit existing OTN hierarchy  

•2 into ODU1 

•8 into ODU2 

•32 into ODU3 

•80 into ODU4 

 ODU0 can carry:  

•1000Base-X (1GbE) 

•STM-1 

•STM-4 

•FC-100 

No OTU0 physical layer Only a lower order wrapper for 1000BASE X mapped into standardized physical layers