Because multimedia applications are already driving bandwidth requirements in some areas, an ATM-based virtual collapsed backbone
is chosen as the next migration step.
The ATM-based virtual collapsed backbone
resembles its frame-based cousin but relies on cell switching for increased scalability and QoS guarantees.
With the redundant power supply option and the capability to learn and store up to 4K MAC addresses per port, the switch can be used as a collapsed backbone
or as a segment switch interconnecting multiple sub-networks of 10 or 100Base-T hubs or switches.
The VIVID family of products offers users a high performance, scalable ATM LAN architecture that enables the internetworking of legacy LANs with ATM switching technology without the limitations associated with collapsed backbone
After reviewing several solutions, McMurry selected Mitel's because of its collapsed backbone
, availability of one cable plant for both voice and data services between the 18 buildings on the campus that are connected, and the ease of expandability in the future with the spare fiber in place.
The network consists of a collapsed backbone
design that provides a cost effective migration path to ATM technology.
Slated for completion in January 1999, the core of Lourdes' network consists of a collapsed backbone
comprised of two CoreBuilder 9000 enterprise switches and two CoreBuilder 3500 Layer 3 switches dedicated to VLAN switching.
In addition to the 16-port 10/100 Mbps switching hub, the LattisSwitch product family also offers the model 28104, a new 8-port fiber configuration for collapsed backbone