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
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.
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.
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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.