Cyan Z77 - App 7: Ethernet over SONET (EoS)

Cyan Z-Series Engineering and Planning Guide Release 5.0
Page 168 © 2013 Cyan, Inc. – All Rights Reserved. 700-0023-05-00 Rev. 1
4.7 App 7: Ethernet over SONET (EoS)
The Z-Series MSE-1482 line card provides two GbE interfaces. The GbE interfaces are provided via
pluggable 1000Base-F SFP transceivers. Each GbE interface is mapped into SONET using Ethernet over
SONET (EoS).
Each GbE interface is mapped into a single Virtual Concatenation Group (VCG) using GFP mapping. Each
VCG consists of virtually concatenated STS-1 or STS-3c containers. Each MSE-1482 line card supports
two VCGs.
The Gigabit Ethernet capability of the MSE-1482 line card includes:
• GbE EoS mapped, GFP
• STS Virtual Concatenation (VCAT): STS-1-21v, STS-3c-7v
• Interfaces supported: OC-3, OC-12, OC-48
• Support for STS-1 25 microsecond applications
• MEF EPL service
The figure below shows an example of the MSE-1482 EoS capabilities. In this EoS application example, the
Cyan Z33 shelf or the Z77 shelf contains a pair of MSE-1482 line cards.
Cyan Z-Series
Shelf
MSE-1482
MSE-1482
EOS
EOS EOS
EOS
GbE GbE GbE GbE
VCGs
OTU-2
EOS Mapping into a VCG
Up to 21xSTS-1 / 7xSTS-3c
Cyan Z-Series
Shelf
MSE-1482
MSE-1482
EOS
EOS EOS
EOS
GbE GbE GbE GbE
VCGs
Two GbE (VCGs)
per MSE-1482 Line Card
Cyan Z-Series
Shelf
MSE-1482 MSE-1482
EOS EOS EOS
EOS
GbE GbE GbE GbE
VCGs
STS-1/Nc
Cross-
Connect
STS-1/Nc
Cross-
Connect
OTU-2
For Ring Closure or
Additional GbE Drops
For Ring Closure or
Additional GbE Drops
OTU-2
OTU-2
STS-1/Nc
Cross-
Connect
STS-1/Nc
Cross-
Connect
Backplane
Inter-connect
STS-1/Nc
Cross-
Connect
STS-1/Nc
Cross-
Connect
Figure 89: MSE-1482 Ethernet over SONET Application