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12 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 3812, SWITCH 3824, AND SWITCH 3848
About the Switch The Switch 3812, Switch 3824 and Switch 3848 units are
10/100/1000 Mbps Ethernet Switches which consist of either:
■ 12 10BASE-T/100BASE-TX/1000BASE-T RJ-45 ports (Switch 3812) or
■ 24 10BASE-T/100BASE-TX/1000BASE-T RJ-45 ports (Switch 3824) or
■ 48 10BASE-T/100BASE-TX/1000BASE-T RJ-45 ports (Switch 3848)
and:
■ Four SFP ports
The highest four numbered RJ-45 ports are combination ports. When an
SFP module is inserted it has priority over the 10/100/1000 port of the
same number (9–12 on the Switch 3812, 21–24 on the Switch 3824, and
45-48 on the Switch 3848).
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 3812, Switch 3824, and Switch 3848.
Table 3 Hardware features
Feature Switch 3812, Switch 3824, and Switch 3848
MAC Addresses Up to 16,000 supported
Forwarding Modes Store and Forward
Auto-negotiation Supported on all ports
Auto MDI/MDIX Supported on all 10/100/1000 ports
Duplex Modes Half and full duplex on all 10/100/1000 ports when
running at 10 Mbps or 100 Mbps.
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
dua1740-0aaa03.book Page 12 Thursday, December 23, 2004 9:23 PM