Circuit/Packet eXchange (CPX) Module Set
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Features
- Consolidates Circuit/Packet Processing Functions
- Enables Cost-Efficient Migration from TDM to IP
- Supports Industry-Unique Test Access for IP
- Maximizes Network Reliability and Scalability
- Increases Provisioning Velocity and Flexibility
Introduction
The Circuit/Packet eXchange (CPX) Module Set adds a unique IP forwarding engine to DNX-11/88 Multiservice Cross-Connect platforms, which offers a higher level of integration than linking disparate devices (digital cross-connect, external router, and standalone hub). By consolidating circuit/packet traffic, eliminating physical WAN interfaces, and integrating Ethernet switch functionality, CPX enables a seamless transition from TDM to IP technology in both fixed line and mobile networks – while reducing operational cost and complexity.
Capabilities and Features
The CPX/DNX solution provides single chassis support for circuit or packet traffic, up to 1024 DS0 or 32 T1/E1 virtual WAN connections, and is fully interoperable with Ethernet/PPP-compliant routers and signaling elements (STP and SCP). Channelized IP filtering and forwarding functions directly interconnected to a cross-connect fabric distinguish CPX from any competition. CPX also extends the carrier-grade reliability of DNX platforms to Ethernet/IP, with an industry-first implementation of MonE/F Ethernet test access and support for IP SplitE/F provisioning and monitoring.
DNX-11/88 with CPX Simplifies Migration
Applications Flexibility
The ability to groom TDM and Ethernet/IP traffic onto shared T3/E3 or OC-3/STM-1 facilities in a single platform with pay-as-you-grow scalability greatly enhances applications flexibility. Fixed line network operators can use CPX for consolidating network management traffic with user data traffic alongside TDM circuit data onto a single transport medium. The DNX/CPX solution delivers carrier-grade circuit reliability and high-performance packet processing in a single, integrated system, allowing a rapid response to traffic growth with little or no additional equipment or rack space.
Mobile network operators can use CPX to converge data control network (DCN) traffic from individual base stations and associated equipment within the site onto a shared, IP transport, and combine traffic from multiple base stations for long-distance backhaul to the MTSO.
SS7 network operators can scale high-growth links to Sigtran while leaving low-speed and T1 SS7 links in place; and leverage the carrier-grade transport network by carrying Sigtran traffic over bundled T1 links using enhanced ML-PPP.
Simplified SS7 to Sigtran Signaling Network Migration
