Cisco ONS-SI-100-LX10= 数据表
Data Sheet
© 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Interoffice Facility Networks
All traditional local exchange carriers (LEC) have used SONET/SDH technology to interconnect
their central offices. With the explosion of data-related services and the growth of termination
equipment with integrated Ethernet interfaces and protocols, these carriers increasingly need to
transport data traffic more efficiently. Using the Cisco ML-MR-10 cards to interconnect data traffic
between the remote terminal equipment and the central core router provides transport bandwidth
efficiency by statistically multiplexing and aggregating traffic for efficient router port use, reducing
the quantity of core router interfaces. Management benefits are garnered through the integration of
data switching into the optical platform, reducing the number of data-communication-network
(DCN) ports. Figure 3 shows an interoffice facility (IOF) transport network.
Figure 3. IOF Transport Network
Metro Data Services Network
A metropolitan network that supports a wide range of service capabilities allows the service
provider to offer a tariff mix to meet customer needs. The Cisco ONS 15454 provides the
foundation for building an advanced multiservice network over an extremely reliable SONET/SDH
infrastructure. The Cisco ML-MR-10 card supports two efficient architectures with RPR rings (refer
to Figure 4) and point-to-point port aggregation (see Figure 5). Data services delivery, through
EVCs, is supported by the Cisco ML-MR-10 card through the use of 802.1Q in the .1Q VLAN
protocol, VLAN translation, input rate limiting, and advanced QoS features, including queue
bandwidth control and traffic priority marking. These flexible features allow the service provider to
build, control, and guarantee the delivery of the SLAs offered for each service type. To help
service provider technicians manage and use the network, the Cisco ML-MR-10 card offers
integrated Cisco IOS Software, the industry’s best-known Layer 2 and Layer 3 technology,
reducing training time and cost.