Bay Networks claims its Baystack Token Ring stackable hub is the first of its kind designed for integrating switched and shared technologies.
Segmentation can be customised by the network manager, integrating shared ring segmentation with switched architectures. In one stack, the network can be segmented by configuring up to 48 rings, which can be monitored by a single network management module. Switched connections between invidual rings are achieved by using Bay?s Centillion 100 and 10 switches.
With 24 ports supporting host connections at four and 16mbps, the hubs can create a single ring of 156 users in a cascade configuration. The cascade can be spread across different floors or wiring closets, with up to 100 metres between hubs. Using the Multiring Expansion features, 12 hubs can be stacked, to support 288 users on 48 separate rings. A mixture of front cascading stacks and multiple rings can also be configured using the Optivity Lan Architect tool, part of Bay?s Optivity network management range.
Baystack can also work with the System 2000, 3000 and 5000 hubs, Token Ring Rmon probes and Token Ring interfaces on Bay routers.
Three Baystack network management modules are available, offering standard, advanced and advanced analyser levels of capability. One module in one hub can manage a whole 12-hub stack. The standard level provides four Rmon groups, advanced includes support for RFC 1757 and 1513, and advanced analyser offers full Rmon monitoring at wire speed plus the industry?s first implementation of Rmon 2 for Token Ring. This enables network managers to monitor application layer traffic for the first time.
For applications native to Token Ring networks, Baystack hubs also include a Distributed Automatic Beacon Resolution feature that identifies and removes, within two seconds, any end station in a stack that is responsible for a beacon condition, indicating possible failure in reliability or security. The hubs also support the Baysecure Lan Access anti-hacking technology.
The hubs are available now, except those with advanced network management, which ship in December. US prices range from $2,795 to $6,495 depending on level of network management required, whlie the Multiring Expansion Module is $1,595.
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