Cisco WS-C2916M-XL Instrukcja Użytkownika Pobierz pdf (Strona 5)

Introduction 1-5

Front-Panel Description

This section describes the switch ports, the expansion slots and their modules, and the

LEDs on the switch front panel.

10/100 Ports

Catalyst 2900 series 10/100 ports are internally switched to all other switch ports and use

RJ-45 connectors and Category 5 cabling. They can operate at either 10 or 100 Mbps in full

or half duplex. For autonegotiation with other devices, the ports are IEEE

802.3u-compliant.

When connected to another device, a port senses the speed and duplex settings of the

attached device and advertises its own capabilities. If the connected device also supports

autonegotiation, the Catalyst 2900 series port negotiates the best connection and conﬁgures

itself accordingly. Ports can also be explicitly set to operate in any combination of half

duplex, full duplex, 10 Mbps, or 100 Mbps. In all cases, the attached device must be within

100 meters of the switch.

100BaseFX Ports

The Catalyst 2924C XL switch (see Figure 1-2) has two 100BaseFX ports, and the

Catalyst 2912MF XL has twelve 100BaseFX ports. These ports use 10/125- or

62.5/125-micron multimode ﬁber-optic cabling. In the default full-duplex mode, these

ports can connect to other 100BaseFX devices over distances of up to 2 kilometers. In

half-duplex mode, the ports support connections to devices up to 412 meters from the

switch.

The 100BaseFX ports default to full-duplex operation and do not autonegotiate.

High-Speed Expansion Slots

The Catalyst 2924M XL and the Catalyst 2912MF XL models (see Figure 1-2 and

Figure 1-3) have two high-speed expansion slots for the Catalyst 2900 series XL

hot-swappable modules. Each module port is internally switched to all other Catalyst

switch ports and is managed through the switch management interfaces.

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Cisco WS-C2916M-XL Instrukcja Użytkownika Strona 5