【正文】 1999, Cisco Systems, Inc. ICND—458 開啟或關(guān)閉端口 Routerconfigure term Router(config)interface serial 0 Router(configif)no shutdown %LINK3UPDOWN: Interface Seria0, changed state to up %LINEPROTO5UPDOWN: Line Protocol on Interface Serial0, changed state to up 開啟已經(jīng)關(guān)閉的端口 Routerconfigure term Router(config)interface serial 0 Router(configif)shutdown %LINK5CHANGED: Interface Serial0, changed state to administratively down %LINEPROTO5UPDOWN: Line protocol on Interface Serial0, changed state to down 人工關(guān)閉端口 169。 1999, Cisco Systems, Inc. ICND—443 show version 命令 wg_ro_ashow version Cisco Interwork Operating System Software IOS (tm) 2500 Software (C2500JSL), Version (3), RELEASE SOFTWARE (fc1) Copyright (c) 19861999 by cisco Systems, Inc. Compiled Mon 08Feb99 18:18 by phanguye Image textbase: 0x03050C84, database: 0x00001000 ROM: System Bootstrap, Version (10c), SOFTWARE BOOTFLASH: 3000 Bootstrap Software (IGSBOOTR), Version (10c), RELEASE SOFTWARE(fc1) wg_ro_a uptime is 20 minutes System restarted by reload System image file is flash: (output omitted) More Configuration register is 0x2102 169。) delete Delete a file dir List files on a filesystem disable Turn off privileged mands disconnect Disconnect an existing work connection enable Turn on privileged mands erase Erase a filesystem exit Exit from the EXEC help Description of the interactive help system More 路由器在特權(quán)模式下的命令清單 只要輸入部分命令串 (唯一表示某個命令 )，緊接著按 tab鍵就可以完整地輸入一個命令 169。 1999, Cisco Systems, Inc. ICND—415 控制臺 登入交換機并鍵入特權(quán)模式密碼 enable Enter password: disable exit 用戶模式提示 特權(quán)模式提示 169。169。 1999, Cisco Systems, Inc. ICND—416 上下文關(guān)聯(lián)幫助 錯誤信息提示 指出所輸入交換機命令的錯誤所在，以便于修改或糾正 . 可以重新調(diào)出一個較長或較復(fù)雜的命令或其它內(nèi)容，用來再次運行、查看或修改 . 之前命令保存區(qū) 交換機命令行幫助機制 提供命令清單和與特定命令相關(guān)聯(lián)的參數(shù) . 169。 1999, Cisco Systems, Inc. ICND—430 路由器命令行幫助機制 上下文關(guān)聯(lián)幫助 錯誤信息提示 指出所輸入交換機命令的錯誤所在，以便于修改或糾正 . 可以重新調(diào)出一個較長或較復(fù)雜的命令或其它內(nèi)容，用來再次運行、查看或修改 . 之前命令保存區(qū) 提供命令清單和與特定命令相關(guān)聯(lián)的參數(shù) . 169。 1999, Cisco Systems, Inc. ICND—444 查看配置情況 控制臺 IOS Setup utility show startupconfig show runningconfig 將配置參數(shù)保存到 NVRAM中 Config Config RAM NVRAM 169。 1999, Cisco Systems, Inc. ICND—459 路由器的 show interfaces 命令 Routershow interfaces Ether0 is up, line protocol is up Hardware is Lance, address is (bia ) Inter address is MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, rely 255/255, load 1/255 Encapsulation ARPA, loopback not set, keepalive set (10 sec) ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:07, output 00:00:08, output hang never Last clearing of show interface counters never Queueing strategy: fifo Output queue 0/40, 0 drops。 Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/1/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec (output omitted) 確認(rèn)參數(shù)修改情況 169。 1999, Cisco Systems, Inc. ICND—442 CtrlP or Up arrow 調(diào)出最近 (前一 )使用過的命令 CtrlN or Down arrow 調(diào)出更近使用過的命令 Router show history 顯示命令保存區(qū)內(nèi)容 Router terminal history size lines 設(shè)置命令保存區(qū)大小 回覽之前用過的命令 169。undebug39。 1999, Cisco Systems, Inc. ICND—414 交換機初次啟動時的顯示信息 控制臺連接 Catalyst 1900 Management Console Copyright (c) Cisco Systems, Inc. 19931998 All rights reserved. Enterprise Edition Software Ether Address: 0050BD73E2C0 PCA Number: 73312101 PCA Serial Number: FAA0252A0QX Model Number: WSC1924EN System Serial Number: FAA0304S0U3 Power Supply S/N: PHI025101F3 1 user(s) now active on Management Console. User Interface Menu