原版ccna教材-第7章_管理cisco設(shè)備-免費閱讀
【正文】 2022, Cisco Systems, Inc. All rights reserved. 3901_11_2022_c5 Routercopy tftp flash Address or name of remote host []? Source filename []? Destination filename []? Accessing Erase flash: before copying? [confirm] Erasing the flash filesystem will remove all files! Continue? [confirm] Erasing device... eeeee (output omitted) ...erased Erase of flash: plete Loading from (via Ether0): !!!!!!!!!!!!!!!!!!!! (output omitted) [OK 10084696/20228704 bytes] Verifying checksum... OK (0x9AA0) 10084696 bytes copied in secs (32636 bytes/sec) Router 從網(wǎng)絡(luò)升級 IOS 加載新的映象文件前對 Flash作適當(dāng)?shù)奈募h除 注意關(guān)于映象文件已經(jīng)存在的提示信息 網(wǎng)絡(luò) 服務(wù)器 FLASH 48 169。 2022, Cisco Systems, Inc. All rights reserved. 3901_11_2022_c5 Cisco文件系統(tǒng)與設(shè)備 RAM NVRAM TFTP 服務(wù)器 Flash flash: system: nvram: tftp: 40 169。 2022, Cisco Systems, Inc. All rights reserved. 3901_11_2022_c5 使用 show running 和 show startup 命令 Routershow startupconfig Using 1359 out of 32762 bytes ! version ! More Routershow runningconfig Building configuration... Current configuration: ! version ! More 存在 NVRAM中 存在 RAM中 顯示當(dāng)前運行的和保存的配置情況 34 169。 2022, Cisco Systems, Inc. All rights reserved. 3901_11_2022_c5 確認當(dāng)前的配置寄存器值 Routershow 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) Router uptime is 20 minutes System restarted by reload System image file is flash: More Configuration register is 0x2102 用命令 show version所顯示的配置寄存器值 26 169。 ROM軟件只能通過更換芯片升級。閃存可以保存一個 Cisco Interwork Operating System (Cisco IOS) 軟件。 2022, Cisco Systems, Inc. All rights reserved. 3901_11_2022_c5 路由器內(nèi)部組件 RAM 配置寄存器 ROM Flash NVRAM 端口 CPU 16 169。 2022, Cisco Systems, Inc. All rights reserved. 3901_11_2022_c5 使用 show cdp entry 命令 RouterAsh cdp entry * Device ID: RouterB Entry address(es): IP address: Platform: cisco 2522, Capabilities: Router Interface: Serial0, Port ID (outgoing port): Serial1 Holdtime : 168 sec Version : Cisco Interwork Operating System Software IOS (tm) 2500 Software (C2500JSL), Version (3), RELEASE SOFTWARE (fci) Copyright (c) 19861999 by cisco Systems, Inc. Compiled Mon 08Feb99 18:18 by phanguye S0 S1 交換機 B 路由器 A 路由器 B 交換機 A 8 169。1 169。 2022, Cisco Systems, Inc. All rights reserved. 3901_11_2022_c5 其它 CDP命令 RouterAsh cdp traffic CDP counters : Packets output: 56, Input: 38 Hdr syntax: 0, Chksum error: 0, Encaps failed: 3 No memory: 0, Invalid packet: 0, Fragmented: 0 RouterAsh cdp interface BRI0 is administratively down, line protocol is down Encapsulation HDLC Sending CDP packets every 60 seconds Holdtime is 180 seconds S0 S1 交換機 B 路由器 A 路由器 B 交換機 A 9 169。 2022, Cisco Systems, Inc. All rights reserved. 3901_11_2022_c5 內(nèi)部資源 —— RAM/DRAM ?RAM/DRA
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