Évaluations - 4, GPA: 4
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Supporting any mix of traffic, from all-circuit to all-packet, it is ideal for use where TDM and Ethernet services coexist. 2 Alcatel-Lucent 1850 TSS-5 Transport Service Switch The Alcatel-Lucent 1850 TSS Family New bandwidth-hungry services, such as triple play and Ethernet virtual private networks (VPNs), are placing great demands on the existing transport infrastructure. To remain profitable, businesses and service providers are embracing these new revenue-generating services by moving from circuit-based transport, using TDM, to packet-based transport, using Ethernet. The new-services introduction is probably the most critical factor to a service provider’s success. The increasing demand for bandwidth for these new services is not reflected in comparable increases in revenue, presenting a significant business challenge. The Alcatel-Lucent 1850 TSS helps businesses maximize their profitability by transporting any service mix while keeping strict control of the costs. The Alcatel-Lucent 1850 TSS is a family of multiservice packet-transport products supporting any mix of traffic, from all-circuit to all-packet. With these products, businesses and service providers can build highly flexible networks that transition from circuit to packet transport gradually, as packet capacity is required, but without disrupting existing traffic or paying for expensive overlay networks. The 1850 TSS family optimizes network efficiencies by aggregating native signals and allowing transport of both packets and circuits. Alcatel-Lucent 1850 TSS-5 Transport Service Switch 3 Alcatel-Lucent 1850 TSS-4 5 Transport Service Switch 1850 TSS-5: Where TDM and Ethernet Services Coexist The 1850 TSS-5 is a compact, modular, optical transport switch with the functionality to carry TDM traffic from 1.544 Mb/s interface/2.048 Mb/s interface (T1/E1) to optical channel level 12 (OC-12), and packet traffic from 10 Mb to Gigabit Ethernet (GigE). It is recommended for use where TDM and Ethernet services coexist. Less than 125 mm (5 in.) tall, the 1850 TSS-5’s small footprint is designed to extend optical transport to the customer premises. It is ideal for mobility backhaul from the cell site and for fiber-to-the-business (FTTB) and end-user-access applications. The 1850 TSS-5 is environmentally hardened, making it suitable for mounting in outdoor cabinets or at cell towers. Pseudo-wire support of circuit emulation services (CES) makes the 1850 TSS-5 ideal for cell-tower backhaul and the smooth transition from TDM to third-generation mobile system (3G) and fourth-generation mobile system (4G) networks. It has small form-factor pluggable (SFP) optics, allowing the optics to be purchased separately from the circuit packs and plugged in when additional interfaces are needed. This design lowers initial capital expenditures (CAPEX), making the 1850 TSS-5 capacity easily scalable. Flexible and efficient aggregation and transport, meeting the evolving needs of multiservice access networks. Alcatel-Lucent 1850 TSS-5 Transport Service Switch 5 Multifunctional Even by today’s competitive standards, the 1850 TSS-5 is distinctly versatile and multifunctional. Fast Ethernet (FE) traffic can be aggregated onto up to 4 GigE ports and these ports can be electrical or optical, depending on the available or desired infrastructure. The 1850 TSS-5 supports carrier Ethernet services such as point-to-point Ethernet line (E-line) and virtual Ethernet LAN (E-LAN) with robust, standards-based quality of service (QoS) and reliability. The 1850 TSS-5 provides high-speed optical transport for OC-3 and OC-12 linear optical extensions, while unidirectional path switched ring/Subnetwork Connection Protection (UPSR/ SNCP) switching can be used at the synchronous transport signal level 1 (STS-1), STS-3c and virtual tributary (VT) 1.5 levels. Further, only minimal provisioning is necessary for private-line Ethernet over synchronous optical network/ synchronous digital hierarchy (SONET/SDH) links between two end-points, typically just SONET/ SDH cross-connections. Standard SONET/SDH loopbacks are also supported, including terminal loopback, facility loopback and external optical loopback. The 1850 TSS-5 has several cross-connect capabilities, offering network designers greater flexibility in directing traffic flow through systems to support a wide variety of customer applications using two-way cross-connections. Where a SONET/SDH ring is created, protection switching is done independently for each SONET/ SDH path. UPSR/SNCP rings operate in an integrated, singleended fashion, eliminating the need for complex, network-level coordination in the effort to restore traffic. Alcatel-Lucent 1850 TSS-6 5 Transport Service Switch Management and Performance Monitoring Where required, the 1850 TSS-5 comes with a craft interface terminal (CIT) that manages SONET/SDH operations though a standard RS-232 or LAN port. A full-featured graphical user interface (GUI) may be used or, if preferred, tra...