Alcatel-Lucent 1850 TSS-320 Brochure page 7

Migrating Toward a Packet Transport Network
Leveraging its universal, open architecture, the Alcatel-Lucent 1850 TSS-320 is positioned to help
service providers migrate their transport networks from all-circuit to all-packet. It integrates a full
set of SONET/SDH features to support traditional transport-network architectures and to interwork
with a large, existing installed base of equipment.
In addition, the platform supports transport packet switching, such as packet operations, administration,
maintenance and provisioning (OAM&P), and integrated G.709 Optical Transport Hierarchy (OTH)
trunk cards. The Alcatel-Lucent 1850 TSS-320 provides a cost-effective solution for implementing
resilient metro and aggregation networks. This solution uniquely transitions from TDM/circuit to
packet transport by smoothly migrating toward the delivery of advanced packet-based services, maxi-
mizing return on investment over the network lifecycle (see Figure 1).
Figure 1. seamless network transformation to all-Packet-Photonic transport
1850 TSS-320
SONET/SDH Model
Universal
Switch
OC-192
OC-48
OC-3/
OC-12
TDM Card
All-Circuit
Native switching of
1850 TSS-320
synchronized traffic
MSTP Model
(circuits) and
asynchronized
traffic (packets)
ROADM
Universal
Switch
Photonic
OC-192
Card
OC-48
GigE/
10 GigE
FE
Packet Card
Any Traffic Mix
1850 TSS-320
Carrier Ethernet Transport Model
Universal
Switch
C/DWDM
GigE/FE
10 GigE
10 GigE
Alcatel-Lucent 1850 TSS-320 Transport Service Switch
ROADM
C/DWDM
All-Packet
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