Riverstone Networks 1850 TSS-320 Migrating Toward a Packet Transport Network, Traffic packets

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

	Native switching of		1850 TSS-320		1850 TSS-320
	synchronized traffic
1850 TSS-320	(circuits) and		MSTP Model	Carrier Ethernet Transport Model
	asynchronized
SONET/SDH Model	traffic (packets)		ROADM		ROADM
Universal		Universal		Universal
Switch		Switch		Switch

OC-3/ OC-12

OC-192
		OC-192
OC-48
		OC-48
	TDM Card		10 GigE

		C/DWDM			C/DWDM
	Photonic
			GigE/FE 10 GigE
GigE/	Card
				10 GigE
FE	Packet Card

All-Circuit Any Traffic Mix All-Packet

Alcatel-Lucent 1850 TSS-320 Transport Service Switch 7