Cisco Cisco 7600 1-Port OC48c STM16 POS SDH Optical Services Module Data Sheet
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DATA SHEET
CISCO 7600 SERIES 1-PORT OC-48C/STM-16 POS ENHANCED
OPTICAL SERVICES MODULE
OPTICAL SERVICES MODULE
High-Density OC-48c/STM-16 Connectivity for Consolidated Service Provider POPs with Service Delivery over IP or MPLS
Core Networks
The rapid growth of Internet-enabled user applications has led to an increase in the bandwidth provisioned through service provider networks.
To accommodate this growth, service providers are consolidating existing network architectures that deliver traditional Layer 2 WAN services,
such as Frame Relay and ATM, with architectures that deliver Layer 3 WAN services, such as high-speed Internet access and Layer 3 VPNs.
This network consolidation enables service providers to optimize their capital investments so that all such expenditures simultaneously benefit
all network services.
Figure 1
1-Port OC-48c/STM-16 POS Enhanced OSM for Cisco 7600 Series Router
Achieving network consolidation is particularly challenging at network aggregation points. The devices at these points must be able to deliver
multiple Layer 2 and Layer 3 services, while providing efficient transfer of network traffic from customer access nodes to the core network and
back. These aggregation devices must simultaneously provide scalable bandwidth and interface density between the access and core networks;
support numerous network protocols, as well as quality-of-service (QoS), security, and accounting features; and be compatible with the existing
SONET infrastructure.
Cisco
®
7600 Series routers provide the performance, density, and features needed for network aggregation devices in consolidated network
architectures. To provide aggregation services over an existing SONET infrastructure, Cisco Series routers can be configured to support various
SONET interface cards, such as the Cisco 1-port OC-48c/STM-16 Packet over SONET (POS) enhanced optical services modules (OSMs).
These enhanced OSMs deliver advanced IP and Multiprotocol Label Switching (MPLS) services based on the Cisco Parallel Express
Forwarding (PXF) network processor. The 1-port OC-48c POS includes two PXF processors—one for transmit processes and the other for
receive processes.