Cisco CATALYST 3920 24 PORT TOKEN RING SWITCH Specification Guide
C H A P T E R
Introduction to the Catalyst 3920 1-1
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Introduction to the Catalyst 3920
This chapter contains the following information about the Catalyst 3920:
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Product Overview
The Catalyst 3920 is a stackable Token Ring switch that provides the following:
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Expandable configuration up to 8 switches
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Low-latency, cut-through switching in a variety of bridging and switching modes
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Configurable ports that can function in half-duplex (HDX) or full-duplex (FDX) modes, as a
concentrator or end station
concentrator or end station
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Transmission priority queues
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Ability to filter frames based on Media Access Control (MAC) address or protocol
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Notification of port errors and beacon situations
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Support for the Cisco Discovery Protocol (CDP)
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Ability to subdivide the switch into virtual LANs (VLANs)
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Support for Simple Network Management Protocol (SNMP)-based management
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Optional remote monitoring (RMON) support
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Ability to monitor port traffic
Interconnection of Switches
The Catalyst 3920 can be used as a standalone switch, or it can be interconnected with up to seven
other switches in a ProStack configuration. The ProStack system is formed by connecting two to
eight switches with SCSI II-type cables via a ProStack Matrix crossbar switch. A two-switch
ProStack may be formed by directly connecting two switches.
other switches in a ProStack configuration. The ProStack system is formed by connecting two to
eight switches with SCSI II-type cables via a ProStack Matrix crossbar switch. A two-switch
ProStack may be formed by directly connecting two switches.