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Case Studies
Case Study: E1 line card subsystem - software development
Asidua was tasked to develop the software for the E1 line card sub-system.
Asidua’s client – a major telecom device manufacturer - was involved in a project with a leading communications solutions provider to migrate the delivery of its legacy circuit-switched service offerings to its next-generation network. This network would allow for multiple services to be delivered simultaneously, from fast Internet access and video-on-demand, to voice and data telephony using VoIP. The communications solutions provider required for business E1 services to be part of their multi-service offering.
Case Study: G.SHDSL line card software
Asidua developed embedded software for a DSLAM G.SHDSL line card for 64 subscriber line pairs.
The Asidua team provided a complete embedded software solution for the G.SHDSL line card, providing the key interface to the Infineon Socrates-16/SDFE-4 devices. Read the Case Study PDF download...
Case Study: Embedded Telecoms Integration - Infineon ConverGate-D
Rapid-turnaround ETI for an Access Network Processor based IP-DSLAM linecard
Infineon is a leading provider of system-on-chip solutions and application-specific semiconductor products for high-performance communications applications such as IP-DSLAM linecards and stackable "Pizzaboxes". Infineon secured a contract to supply its ConverGate™-D Access Network Processor to a major telecom equipment manufacturer for deployment in next-generation IP-DSLAM products. In addition to silicon, Infineon had to provide a robust embedded software solution to map the customer’s pre-existing API onto the low-level ConverGate-D driver software. Infineon immediately turned to Asidua to develop this abstraction-layer software.
Case Study: ISDN line card software
Asidua was tasked to develop the software for a DSLAM ISDN-BA Line Card which configures and manages 32 subscriber line pairs. The line card contained two Infineon DELIC devices providing a TDM traffic interface to each DELIC via IOM-2 bus providing ISDN on 32 subscriber pairs.
Asidua is a strategic partner in the specification, design, implementation and validation of all real-time embedded software for a major telecom vendor’s access technology portfolio. This client is a key supplier in the access domain, providing solutions to link BT’s existing access network to the 21CN core IP-based network. Thanks to the client’s DSL Access Multiplexer (DSLAM), multiple services can be delivered simultaneously, from fast Internet access and video-on-demand, to voice telephony using VoIP.
Case Study: Migrating legacy ATM networks to “triple-play” Ethernet
Asidua’s involvement with this project concerned upgrading the software on existing linecards (from the old ATM network) to support the transport of “triple play” broadband Ethernet services to the next-generation network.
Asidua’s client – a major telecoms device manufacturer – was involved in a project with a leading communications solutions provider to migrate the delivery of its broadband services to its next generation network. Part of this project involved the migration of existing ATM networks to Ethernet. Asidua’s involvement with this project concerned upgrading the software on existing linecards (from the old ATM network) to support the transport of “triple play” broadband Ethernet services to the next-generation network. The communications solutions provider required the Ethernet services to be part of its broadband offering.
Case Study: E1 TDM/ATM interworking in the Access Network
A major telecoms equipment manufacturer re-engaged Asidua following successful development and deployment of an SNMP Agent on the manufacturer’s ATM Switch Fabric card.
The remit was to design and develop the software for a new card that would offer E1 TDM/ATM interworking and traffic consolidation. The card would allow telecom network operators to make more efficient use of their core network bandwidth using a Circuit Emulation Service (CES) to transport E1 TDM traffic.
Case Study: Providing VPN services in the edge network
Asidua designed software for a new MPLS LER service offering that allows Providers Equipment to provision point-to-point Layer 2 VPN services.
A major telecommunications equipment manufacturer engaged Asidua to design and develop the software for a new MPLS LER service offering which would allow providers equipment (PE) to provision point-to-point Layer 2 VPN services. These Virtual Private Wire Services utilise the Ethernet Pseudowire Emulation Edge-to-Edge (PWE3) to enable customer equipment (CE) to be connected to remote equipment via the existing MPLS or IP backbone network creating an emulated Ethernet service.
Case Study: Legacy Network Migration Architecture - Virtual Access
Virtual Access, a leading supplier of managed network solutions, has developed an architecture for migration of legacy networks (X25, BiSync, etc) to next-generation network (NGN) topologies. Asidua helped to develop solutions based on this architecture.
Virtual Access provides a unique blend of network solutions and managed services. Its customers include BT, Belgacom, Deutche Telekom, and NTT. In its latest portfolio release, Virtual Access has included a platform which allows service providers to migrate legacy networks to 21st Century Networks. The solution works by deploying the cost-effective Service Managed Gateway at the customer premises which presents the legacy network interface to the customer, but uses DSL (ADSL, ADSL2, ADSL2+ or G.SHDSL) as the backhaul to the central office. (Read about the Virual Access X.25 migration architecture - click here).
Asidua's Device Services Division played a key role in the development of the X.25 migration solution. Deploying our Embedded Telecoms Integration offering, Asidua set about drawing up a specification for presenting X.25 interfaces at the customer premises using ADSL as the connection to the central office.
Case Study: Telephony Signalling Transport
Wintegra WinPath DPS and WDDI Customisation and Augmentation
A major manufacturer of telecommunications and networking equipment engaged Asidua to implement support for Message Transfer Part 2 (MTP2) transport and optimisation on the Wintegra WinPath. MTP2 is a protocol in the SS7 protocol suite responsible for the reliable transmission of messages between signalling points. Asidua’s customised WinPath data plane software runs on the customer’s modular routing platform, performing tasks which are too processor-intensive to be performed on the host.
