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12 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 3870
About the Switch
3870
The Switch 3870 24 port unit is a mixed media device which consists of:
■ 24 10BASE-T/100BASE-TX/1000BASE-T RJ-45 ports, of which 4 are
Dual Personality 10/100/1000BASE-T/1000BASE-X SFP ports
■ 4 Dual Personality 10/100/1000BASE-T/1000BASE-X SFP ports
The Switch 3870 48 port unit is a mixed media device which consists of:
■ 48 10BASE-T/100BASE-TX/1000BASE-T RJ-45 ports, of which 4 are
Dual Personality 10/100/1000BASE-T/1000BASE-X SFP ports
■ 4 Dual Personality 10/100/1000BASE-T/1000BASE-X SFP ports
For information about using the software features of the Switch, refer to
the “Switch Management Interface Reference Guide” on the CD-ROM
that accompanies the Switch.
Summary of
Hardware Features
Table 3
summarizes the hardware features that are supported by the
Switch 3870.
Table 3 Hardware features
Feature Switch 3870
MAC Addresses Up to 16,000 supported
Forwarding Modes Store and Forward
Auto-negotiation Supported on all ports
Auto MDI/MDIX Supported on all ports
Duplex Modes Half and full duplex on all ports
SFP Gigabit Ethernet
Ports
Supports fiber Gigabit Ethernet short-wave (SX),
long-wave (LX) and long-haul (LH70) transceivers in any
combination
Flow Control Supported on all ports
Traffic Prioritization Supported (IEEE Std 802.1D, 1998 Edition)
Eight traffic queues per port
Fast Ethernet and
Gigabit Ethernet Ports
Auto-negotiating 10BASE-T/100BASE-TX/1000BASE-T
and SFP ports
RPS Support Connects to SuperStack 3 Advanced Redundant Power
System (ARPS).
Mounting 19-inch rack or stand-alone mounting
DUA1745-0AAA02.book Page 12 Monday, August 9, 2004 11:51 AM