3 articles
Ethernet over PDH
Ethernet over PDH (EoPDH) is a set of ITU-T standards that transport Ethernet frames over legacy PDH links such as DS1, E1, DS3, and E3.
Ethernet over SDH
Ethernet over SDH (EoSDH), also known as Ethernet over SONET, is a set of standardized methods for carrying Ethernet frames over SDH networks using GFP, VCAT, and LCAS, marketed as Next Generation SDH.
Virtual concatenation
Virtual concatenation (VCAT) is a technique in SONET/SDH transport networks where several independent virtual containers carry a single payload as one logical connection, reassembled at the destination.