Cisco WS-C2950SX-24 Manual de servicio descargar pdf (Pagina 25)

Two-Minute Drill

381

CertPrs8/CCNA

Cisco Certiﬁed Network Associate Study Guide/Richard Deal/149728-5/Chapter 12

TWO-MINUTE DRILL

2960 Overview

❑ The 2960 switches support Fast Ethernet and/or Gigabit Ethernet interfaces.

❑ The SYSTEM LED will be amber if the switch experiences a malfunction.

❑ The MODE button is used to change the meanings of the port LEDs.

❑ If a port LED is flashing amber/green, there is an operational problem with

the port; if it is amber, the port has been disabled: shutdown, STP blocking,

or port security violation.

Switch Startup

❑ When a switch boots up, POST is run, the IOS is found and loaded, and the

configuration is found and loaded.

❑ If a configuration file cannot be found when booting up, the System

Configuration Dialog questions can be answered to place a basic

configuration on the switch.

Basic Switch Configuration

❑ An IP address can be assigned to a VLAN interface on a switch for accessing

it remotely via telnet or SSH, or to back up its configuration or upgrade its

IOS using the ip address command.

❑ The ip default-gateway command assigns a router address the switch

should use to access other subnets.

Basic Switch Operation and Verification

❑ The show mac-address-table command displays the port address

table of the switch.

Port Security Feature

❑ Port security is used to prevent unauthorized access to a LAN on access

interfaces (non-trunk connections).

❑ The switchport port-security commands are used to configure it.

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Cisco WS-C2950SX-24 Manual de servicio Pagina 25