Cisco Cisco 7600 OC-3c STM-1 POS SDH Optical Services Module Hoja De Datos
Cisco Systems, Inc.
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ENHANCED OC-3/STM-1 OSM FEATURE SUMMARY
The Cisco 4-, and 8-port OC-3c/STM-1 POS enhanced OSMs support the capabilities listed in Table 1.
Table 1.
Features and Benefits of the OC-3c/STM-1 POS OSM
Feature
Benefit
Multiple OC-3 POS interfaces per OSM
High-density OC-3 connectivity per chassis and per rack
Software-upgradable feature sets using the Cisco PXF
network processor
network processor
Greater flexibility to support new features through software upgrades, while
delivering performance similar to application-specific integrated circuit (ASIC)-
based designs
delivering performance similar to application-specific integrated circuit (ASIC)-
based designs
Throughput of up to 5.5 Mpps per PXF IP services
processor
processor
High performance to support optical interface speeds as high as OC-48
Four ports of Gigabit Ethernet, in addition to the OC-3
SONET ports
SONET ports
Simultaneous WAN and LAN access to meet diverse applications
Direct memory access (DMA) memory of 256 MB per PXF
network processor
network processor
Supports a minimum of 8000 QoS queues per PXF network processor
Support for a minimum of 511 and a maximum of 1023
virtual routing and forwarding (VRF) instances per
chassis for MPLS Layer 3
virtual routing and forwarding (VRF) instances per
chassis for MPLS Layer 3
Outstanding service density per chassis for support of MPLS VPN services for
end customers
end customers
Support for enhanced QoS features, including Class
Based Weighted Fair Queuing (CBWFQ), Low-Latency
Queuing (LLQ), and Weighted Random Early Detection
(WRED)
Based Weighted Fair Queuing (CBWFQ), Low-Latency
Queuing (LLQ), and Weighted Random Early Detection
(WRED)
Improved delivery of service-level agreements (SLAs) to end customers
Support for Layer 2 network services, including Frame
Relay and ATM, transported over MPLS network
architectures
Relay and ATM, transported over MPLS network
architectures
Ability to deliver both Layer 2 services, such as Frame Relay, Ethernet, and
ATM, and Layer 3 services, such as Internet access and 2547 VPNs, in a
consolidated network architecture
ATM, and Layer 3 services, such as Internet access and 2547 VPNs, in a
consolidated network architecture
INVESTMENT PROTECTION
The Cisco 7600 Series enables Cisco customers to take advantage of their existing investments in Cisco equipment. In addition to the enhanced
OSMs, the Cisco 7600 Series can be configured with any combination of traditional Cisco Catalyst
®
6000 Series LAN interfaces, and can also
be configured with Cisco 7500 and 7200 series WAN port adapters. As a result, the Cisco 7600 Series offers outstanding scalability, with WAN
interfaces from DS-0 through OC-48/STM-16 and LAN interfaces from 10/100-Mbps Ethernet to Gigabit Ethernet and 10 Gigabit Ethernet.
DESIGNED FOR SERVICE PROVIDER ENVIRONMENTS
The Cisco 7600 Series is specifically designed to meet the high-availability requirements of service provider networks. Each Cisco 7600 Series
router provides a Network Equipment Building Standards 3 (NEBS-3)-compliant chassis. Furthermore, the Cisco 7600 Series supports fully
redundant route processing and forwarding configurations, with the ability to route using such core protocols as Border Gateway Protocol
Version 4 (BGP4), Intermediate System-to-Intermediate System (IS-IS), and Open Shortest Path First (OSPF), as well as support for QoS and
packet filtering. The Cisco 7600 Series supports a 720-Gbps switch fabric, providing high aggregate throughput, as well as high port density,
enabling service providers to optimize space utilization in the central office. Port densities for OC-3/STM-1 that can be supported by the Cisco
7600 Series are shown in Table 2.