EXFO IQS-8100 Series Transport Blazer for IQS-600 - Manual (Page 677)

Glossary
SONET/SDH Application 663
Next-Gen - Virtual Concatenation (VCAT)
In summary, virtual concatenation enables SONET/SDH transport pipes to
be filled more efficiently with data services by grouping individual
SONET/SDH containers into a virtual high-bandwidth “link”, matched to the
required service bandwidth. The following sections will provide a more
in-depth look at the inner workings of high-order and low-order VCAT
frame structures.
Service Bit Rate Utilization Utilization with VCAT
Ethernet 10 Mb/s STS-1/VC-3 (20%) VT1-5-7v (89%)/VC12-12v (92%)
Fast Ethernet 100 Mb/s STS-3c/VC-4 (67%) STS-1-2v/VC-3-2v (100%)
Gigabit Ethernet 1000 Mb/s STS-48c/VC-4-16c (42%) STS-3c-27v/VC-4-7v (95%)
Fibre Channel 200 Mb/s STS-12c/VC-4-4c (33%) STS-1-4v/VC-3-4v (100%)
Fibre Channel 1000 Mb/s STS-48c/VC-4-16 (42%) STS-3c-27v/VC-4-7v (95%)
ESCON 200 Mb/s STS-12c/VC-4-4c (33%) STS-1-4v/VC-3-4v (100%)