Cabletron Systems Cabletron BRIM-F6, Networking Manual

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Token Ring
8-6 Token Ring Workgroup Design
When examining the Media characteristics of the devices remaining in the
selection field, the Network Designer immediately eliminates the STHI-42/44
from consideration. The network being designed will use UTP cabling, which is
not directly supported by the STHI-42/44.
Examining the port count available from the STHI-22/24 devices, the Network
Designer notes that even the STHI-24, which provides 24 station ports, will not
meet the required station count of 45. As the STHI-24 supports the use of TPIMs
for the creation of RI/RO connections, it would be possible to purchase a second
STHI-24 and four TPIMs of a matching media type and connect the two devices
through the RI/RO ports. This solution, while ideal in situations where users are
widely dispersed or located in separate facilities, forces the Network Designer to
purchase another intelligent device, and pay for the management capabilities
twice. In this example, the use of the STHI-24’s stackable hub capabilities will
provide a significant cost savings.
As the STHI-24 is a stack base, up to four STH non-intelligent hubs can be stacked
on top of it and receive the STHI-24’s SNMP management functionality.
Product Type
Max
Management
Media Port Count PIMs/BRIMs
STHI-22/24 stack base SNMP UTP 12/24 2 TPIMs
STHI-42/44 stack base SNMP STP 12/24 2 TPIMs
Product Type
Max
Management
Media Port Count PIMs/BRIMs
STHI-22/24 stack base SNMP UTP 12/24 2 TPIMs