Pine Tree networks builds redundant internet access with Ethernet

Pine Tree Networks used a SONET Ring to deliver both voice and internet access, but the demand for Internet service has grown to the point where the traffic on the SONET ring was congested. The Net to Net Technologies, Inc. DSLAM sites in Pine Tree’s Central Offices were being fed by two T1 lines, but available bandwidth was shrinking quickly.

Pine Tree Networks decided to run a new Gigabit Ethernet network in parallel to their SONET ring. Ethernet proved to be a low-cost solution that provided a full 1 Gigabit (Gb) of bandwidth. By moving customers’ Internet traffic to a separate network, Pine Tree reduced the bandwidth stress on the existing SONET ring and providing a fast, dedicated data path for the Internet traffic. Pine Tree Networks chose GarrettCom’s 6K16 Managed Ethernet Switches and S-Ring Redundancy Manager software for the task. 6K16 Switches are installed in each Central Office to form a redundant the Gigabit fibre ring.

Download application note: Pine Tree networks builds redundant internet access with Ethernet [PDF]

WiFi metro network uses Ethernet for bandwidth and carrier class

DCE was approached by a metropolitan area in Pennsylvania which needed to put together a municipal network system that would provide Wi-Fi hotspots around the inner city. The requirements included high bandwidth transmission rates for the traffic so that large numbers of wireless PC users could be connected and each receive broadband speed.

DCE chose gigabit Ethernet technology as the basis for the municipal network system. Wi-Fi hotspots had to be within a few hundred feet of each other for coverage, and available installed fibre media was located in the city proximate to each desired access hotspot.

The Ethernet Switches needed to be Carrier Class for high reliability, have multiple gigabit fibre optic port connections, provide industry-standard managed network software, and support fault tolerant rings. GarrettCom’s 6K16V Managed Switches have all of these features, including the S-Ring Redundancy Manager software for self-healing LANs.

Download application note: WiFi metro network uses Ethernet for bandwidth and carrier class [PDF]

CITEC system goes carrier Ethernet with NEBS & ETSI certified switches

CITEC customers required a platform incorporating a suite of voice applications which would provide the interrogation and updating of databases, voice messages, alarm calls, the exact time of telegram dictation, and a set of intelligent network services such as information on subscriber telephone number changes or urgent service calls.

A mixture of hardware and software designed to operate in demanding telecommunications environments was required.

CITEC engineers chose GarrettCom’s 6K25 Managed Switches. The 6K25 offers configuration flexibility and high reliability with dual source -48V DC power and NEBS level 3 and ETSI level 3 certification.

Download application note: CITEC system goes carrier Ethernet with NEBS & ETSI certified switches [PDF]

Elastic Networks employs P62F switches to deploy DSL to users

Elastic Networks uses a patented EtherLoop technology to provide high-speed first-mile solutions that can run on existing copper lines to lower cost and provide higher quality of service. Elastic Networks uses DSLAMs (Digital Subscriber Line Access Multiplexers) in remote cabinets to bring broadband service to outlying areas. The initial design included T1 bridges. T1 lines, however, required a hubbed configuration that was very expensive because it involved the laying of considerable amount of cabling.

Because it would be installed outdoors, the Fast Ethernet switch had to withstand harsh conditions and extended operating temperature ranges. To meet the requirements of the remote cabinets, the switch needed to be small and robust, and operate using the telephone companies’ traditional -48VDC power.

ZCorum and Elastic Networks initially looked to custom solutions. However, after reviewing the specifications of the P62F Ethernet Switch, they found a highly reliable off-the-shelf solution that met their needs perfectly

Download application note: Elastic Networks employs P62F switches to deploy DSL to users [PDF]