Data Sheet
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Wide Service Interface Mix
A metro network, being close to or on a customer’s premises—unlike its long-haul counterpart—
requires support for a great diversity of service interfaces. The service interfaces allow network
providers to offer new tariffs and allow enterprise customers to natively transport a wide variety of
services over a common transport network without unnecessary conversion stages and
equipment. Additionally, a wide service mix simplifies the planning for services. The Cisco ONS
15454 MSTP, with its MSPP capabilities, supports a broad range of standards-based services in a
single platform, including:
●
Aggregated lower-rate TDM services from DS-1/E1 over 2.5-Gbps and 10-Gbps
wavelengths
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SONET/SDH wavelength and aggregated services: OC-3/STM-1, OC-12/STM-4, OC-
48/STM-16, and OC-192/STM-64
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Data services: private-line, switched and wavelength-based, including 10/100BASE-T,
Gigabit Ethernet, 10 Gigabit Ethernet LAN physical layer, and 10 Gigabit Ethernet WAN
physical layer
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Storage services: 1-Gbps, 2-Gbps and 4-Gbps Fibre Channel, 10-Gbps Fibre Channel, IBM
Fiber Connection (FICON), and Enterprise Systems Connection (ESCON), ETR/CLO, ISC-
1, ISC-3
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Video services: D1 and high-definition television (HDTV)
The Cisco ONS 15454 MSTP provides multiple provisionable interface protection options, which
facilitate support for high-availability as well as unprotected service delivery to meet the varied
service-level agreements (SLAs) for metro transport offerings.
Service Transparency
Critical to offering a wide service mix is a DWDM system’s ability to offer the level of transparency
required by the service. The Cisco ONS 15454 MSTP solution offers the choice of multiservice
aggregation, wavelength aggregation, and wavelength transport, combined with integrated,
intelligent DWDM transmission, in a single platform to optimize network costs for any mix of
service types. Using digital-wrapper technology (defined in ITU-T G.709) enables transparency
while still allowing enhanced wavelength management and providing extended optical reach with
integrated Forward Error Correction (FEC) and Enhanced Forward Error Correction (E-FEC).
Unique to the market is also the possibility for the Cisco ONS 15454 MSTP to support direct
interconnection with ITU interfaces from Layer 2, Layer 3, and storage area network (SAN)
devices. All the intelligent optical transmission-related features and functions can be supported by
the Cisco ONS 15454 MSTP with these types of wavelengths and services as well.
Topology Flexibility
Traditional first-generation metro DWDM solutions were optimized for point-to-point transmission.
Metro and regional/LH DWDM networks require the possibility to support point-to-point as well as
ring topologies with more complex traffic patterns, which may also extend across multiple
networks. The Cisco ONS 15454 MSTP can be configured to support any metro or regional/LH
DWDM topology (Figure 2), allowing a single solution to be provisioned for the network.
The ultimate topology flexibility is achieved through a fully reconfigurable optical add/drop
multiplexer (ROADM). The Cisco ONS 15454 MSTP offers ROADM capability that allows zero to
