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1、 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-1网络环境管理 管理 Cisco 路由 器的启动和配置 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-2路由器通电启动过程执行加电自检 (POST)。加载并运行 bootstrap 代码。查找 Cisco IOS 软件。加载 Cisco IOS 软件。查找配置。加载配置。运行配置好的 Cisco IOS 软件。 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-3路由器的内部组件 2007 Cisco Systems, Inc
2、. 保留所有权利。ICND1 v1.06-4ROM 的功能包含用于基本功能的微代码 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-5找到 Cisco IOS 映像搜索顺序：1. 检查配置寄存器2. 解析用于启动系统命令的配置3. 默认到闪存中第一个文件4. 尝试从网络服务器启动5. 导入助手映像6. ROMMON 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-6从闪存加载 Cisco IOS 映像将闪存文件加载到 RAM。 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-
3、7加载配置 从 NVRAM 加载并执行配置 如果 NVRAM 中当前没有配置，进入设置模式 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-8显示当前配置和已保存的配置show running-config 命令和 show startup- config 命令 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-9确定当前配置寄存器的值Cisco IOS Software, 2800 Software (C2800NM-IPBASE-M), Version 12.4(5a), RELEASE SOFTWARE (fc
4、3) Technical Support:http:/ Copyright (c) 1986-2006 by Cisco Systems, Inc. Compiled Sat 14-Jan-06 03:19 by alnguyenROM:System Bootstrap, Version 12.4(1r) hqluong 1r, RELEASE SOFTWARE (fc1)RouterX uptime is 1 week, 5 days, 21 hours, 30 minutes System returned to ROM by reload at 23:04:40 UTC Tue Mar
5、13 2007 System image file is “flash:c2800nm-ipbase-mz.124-5a.bin“Cisco 2811 (revision 53.51) with 251,904K/10,240K bytes of memory. Processor board ID FTX1013A1DJ 2 FastEthernet interfaces 2 Serial(sync/async) interfaces DRAM configuration is 64 bits wide with parity enabled. 239K bytes of non-volat
6、ile configuration memory. 62,720K bytes of ATA CompactFlash (Read/Write)Configuration register is 0x2102 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-10Finding the Cisco IOS Software 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-11Router Startup Flowchart 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-12配
7、置寄存器的值 配置寄存器位 3、2、1 和 0 用于设置启动选项 使用 show version 命令检查配置寄存器的值 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-13show version 命令Cisco IOS Software, 2800 Software (C2800NM-IPBASE-M), Version 12.4(5a), RELEASE SOFTWARE (fc3) Technical Support:http:/ Copyright (c) 1986-2006 by Cisco Systems, Inc. Compiled Sa
8、t 14-Jan-06 03:19 by alnguyenROM:System Bootstrap, Version 12.4(1r) hqluong 1r, RELEASE SOFTWARE (fc1)RouterX uptime is 1 week, 5 days, 21 hours, 30 minutes System returned to ROM by reload at 23:04:40 UTC Tue Mar 13 2007 System image file is “flash:c2800nm-ipbase-mz.124-5a.bin“Cisco 2811 (revision
9、53.51) with 251,904K/10,240K bytes of memory. Processor board ID FTX1013A1DJ 2 FastEthernet interfaces 2 Serial(sync/async) interfaces DRAM configuration is 64 bits wide with parity enabled. 239K bytes of non-volatile configuration memory. 62,720K bytes of ATA CompactFlash (Read/Write)Configuration
10、register is 0x2102 (will be 2104 at next reload) 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-14show flash 命令RouterX#sh flash -#- -length- -date/time- path 1 14951648 Feb 22 2007 21:38:56 +00:00 c2800nm-ipbase-mz.124-5a.bin 2 1823 Dec 14 2006 08:24:54 +00:00 sdmconfig-2811.cfg 3 4734464 Dec 14 2006 0
11、8:25:24 +00:00 sdm.tar 4 833024 Dec 14 2006 08:25:38 +00:00 es.tar 5 1052160 Dec 14 2006 08:25:54 +00:00 common.tar 6 1038 Dec 14 2006 08:26:08 +00:00 home.shtml 7 102400 Dec 14 2006 08:26:22 +00:00 home.tar 8 491213 Dec 14 2006 08:26:40 +00:00 128MB.sdf41836544 bytes available (22179840 bytes used)
12、 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-15网络环境管理 管理 Cisco 设备 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-16Cisco IOS 文件系统和设备 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-17管理 Cisco IOS 映像 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-18检验闪存中是否有可用于 Cisco IOS 映像的空间。检验内存及解读映像文件名RouterX#sh flash -#- -
13、length- -date/time- path 1 14951648 Feb 22 2007 21:38:56 +00:00 c2800nm-ipbase-mz.124-5a.bin 2 1823 Dec 14 2006 08:24:54 +00:00 sdmconfig-2811.cfg 3 4734464 Dec 14 2006 08:25:24 +00:00 sdm.tar 4 833024 Dec 14 2006 08:25:38 +00:00 es.tar 5 1052160 Dec 14 2006 08:25:54 +00:00 common.tar 6 1038 Dec 14
14、2006 08:26:08 +00:00 home.shtml 7 102400 Dec 14 2006 08:26:22 +00:00 home.tar 8 491213 Dec 14 2006 08:26:40 +00:00 128MB.sdf41836544 bytes available (22179840 bytes used) 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-19更新闪存之前备份当前文件。创建软件映像备份RouterX#copy flash tftp: Source filename ? c2800nm-ipbase-mz.1
15、24-5a.binAddress or name of remote host ? 10.1.1.1Source filename ? c2800nm-ipbase-mz.124-5a.binAddress or name of remote host ? 10.1.1.1 Destination filename c2800nm-ipbase-mz.124-5a.bin ! 12094416 bytes copied in 98.858 secs (122341 bytes/sec) RouterX# 2007 Cisco Systems, Inc. 保留所有权利。ICND1 v1.06-20通过网络升级映像RouterX#copy tftp flash: Address or name of remote host 10.1.1.1? Source filename ? c2800nm-ipbase-mz.124-5a.bin Desti
