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Cisco Systems 3 Switch User Manual

1. Your switch router should now be operating correctly You can now use Telnet to remotely assign and verify configurations E Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco IOS Release 12 0 7 W5 15d l Chapter3 Initial Switch Router Configurations Configuring the Host Name W You can display the configuration file when you are in privileged EXEC enable mode e To see the current operating configuration enter the following command at the enable prompt Router show running config e To see the configuration in NVRAM enter the following command Router show startup config If you made changes to the configuration but did not yet write the changes to NVRAM the results of the show running config will differ from the results of the show startup config command Configuring the Host Name In addition to the system passwords and enable password your initial configuration should include the host name to make it easier to configure and troubleshoot the switch router To configure the host name use the following steps beginning in enable mode Command Purpose Step1 Router configure terminal Enters global configuration mode Router config Step2 Router config hostname name string Enters a system name In this example we set the hostname to Router Step3 Router config end Returns to privileged EXEC mode Router Step4 Router copy running c
2. Step4 Router reload Initiates a reload of the system software You then enter ROM monitor mode rommon 1 gt Step5 rommon 1 gt dir boot flash Displays the contents of the file system Perform this optional step to display and copy the name of the system image to the clipboard for use in Step 6 Step6 rommon 1 gt boot boot flash filename Reboots the switch router with the new system image You can paste the filename from the clipboard if you copied it in Step 5 Step7 Router gt show version Displays the system software version information Use this step to confirm that the system is loaded with the expected software version 1 For details on using the configuration register to set boot parameters refer to the Cisco IOS Configuration Fundamentals Configuration Guide The following example shows setting the configuration register saving the configuration and reloading the switch router with the new image on the boot flash memory SIMM Router configure terminal Router config config register 0x0 Router config end Router 4d00h SYS 5 CONFIG_I Configured from console by console Router copy system running config nvram startup config Destination filename startup config Building configuration OK Router reload Proceed with reload confirm rommon 1 gt dir bootflash File size Checksum File name 3173128 bytes 0x306b08 Ox799 cat2948g in mz 120 7 W5 14 45 3173364 bytes 0x3
3. Reset the speed on the terminal emulator back to 9600 bps once you complete the transfer of the IOS image into DRAM You see the following output upon completion of the IOS image transfer Returning console speed to 9600 Please reset your terminal emulator to this speed and hit y to continue amp Note The remote connection breaks when you reset the speed on the terminal emulator Disconnect the modem from the console port and reconnect the terminal line Enter yes to continue Your switch router automatically reboots with the IOS image Download an image from CCO onto the boot flash file system after your switch router reboots I 78 10408 01 Cisco IOS Release 12 0 7 W5 15d Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide Chapter 3 Initial Switch Router Configurations HZ Updating the System Image Updating the System Image Step 1 Step 2 Step 3 This section provides minimal instructions for updating the system image on your Layer 3 switch router This procedure assumes that you are manually booting the switch router from a system image on the boot flash memory SIMM You can also configure the switch router to boot automatically from a system image specified in the BOOT environment variable For additional information on booting options and maintaining system images refer to the Cisco IOS Configuration Fundamentals Configuration Guide To update the system software
4. a System Image Using Xmodem and Ymodem To copy a Cisco IOS image from a computer or workstation to a router using the Xmodem or Ymodem protocol use the following commands Command Purpose xmodem c y s Copies a system image from a computer to DRAM using the ROM monitor The c option provides CRC 16 checksumming y uses the Ymodem protocol and s sets the console port data rate or speed Speeds range from 1200 bps to 57600 bps The computer from which you transfer the Cisco IOS image must be running terminal emulation software and the Xmodem or Ymodem protocol Xmodem Transfer Example Using the ROM Monitor A This example shows a file transfer using the ROM monitor and the Xmodem protocol To transmit with the Ymodem protocol use the xmodem y command The Catalyst 2949G L3 and the Catalyst 4908G L3 switch routers must have enough DRAM to hold the IOS image file being transferred The transferred IOS image runs only in DRAM and cannot be stored in boot flash memory Once your switch router boots up with the transferred image you can copy a good IOS image from a TFTP server onto the boot flash file system Caution Step 1 Step 2 A modem connection from the telephone network to your console port introduces security issues that you should consider before enabling the connection For example remote users can dial into your modem and access the router s configuration settings To download an IOS i
5. a TFTP session to copy the new system image from the TFTP server Router dir bootflash Displays the contents of boot flash memory This step confirms that the latest image file was copied as expected The following example shows how to erase a full boot flash memory file system copy a known good image and copy the latest image using TFTP Router dir bootflash Directory of bootflash 1 rw 3168032 lt no date gt pci fix 2 rw 1858797 lt no date gt domino diag f1 3 rw 3166692 lt no date gt cat2948g in mz 120 7 WX5 14 27 4 rw 3172268 lt no date gt cat2948g in mz 120 7 W5 14 42 5 rw 3173128 lt no date gt cat2948g in mz 120 7 W5 14 45 16777216 bytes total 2237976 bytes free Router copy tftp bootflash Address or name of remote host 172 10 00 00 Source filename domino cat2948g in mz 120 7 W5 14 45 Destination filename cat2948g in mz 120 7 W5 14 45 SWarning There is a file already existing with this name Do you want to over write confirm yes Accessing tftp 172 10 00 00 domino cat2948g in mz 120 7 W5 14 45 Erase bootflash before copying confirm yes Erasing the bootflash filesystem will remove all files Continue confirm yes Erasing device eeeeeeeeeeceeceeeeeeeceeceecececeecececececececeeeeeeeeeeeeeeeecece ee erased Erase of bootflash complete Loading domino cat2948g in mz 120 7 W5 14 45 from 172 10 00 00 via FastEthernet 1 EPSP EPhP Ebr herb er errr reer rere r
6. 06bf4 Ox755 cat2948g in mz 120 7 W5 14 46 rommon 2 gt boot bootflash cat2948g in mz 120 7 W5 14 46 Self decompressing the image HHHHHHHHH HH HH HH HHH HH HH HH HH HH HE HE EH HE FE HE HE EH HE HE HE HE HE HE H Hat E HE HE HE HE HE HE HE HE HE HE HE EEE HE HE HE HE HE HE HE a HE FE HE HE FE HE HE FE HE FE EH HE HE HE HE FE a a HE E a a HE Ha HE HE HE HE HE HE HE HE HE HE HE HE HE HE HE HE HE HE HE E HE HE FE HE HE FE HE HE FE HE HE HE HE HE FE HE FE HE HE FE HE HE FE HE FHE FE HE HE FE HE HE FE HE FE HE HE FE HE HE HE HE FHE HE HE FHE HE HE E HE HE HE HE HE HE EHE HE HE HE HE HE HE HE HE E HE HE FE FE HE HE HE HE FE HE HE TE HE HE E HE EE E HE EE E E E E E E E E EE EERE EREEREER OK lt The system boots gt Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco 10S Release 12 0 7 W5 15d a 317 Chapter 3 Initial Switch Router Configurations W Updating the System Image Router gt show version Cisco Internetwork Operating System Software IOS tm L3 Switch Router Software CAT2948G IN M Version 12 0 7 W5 14 46 IN TERIM TEST SOFTWARE Copyright c 1986 2000 by cisco Systems Inc Compiled Tue 22 Feb 00 04 31 by Image text base 0x60010928 data base 0x605B2000 Now that you have completed the initial configurations on your Layer 3 switch router you can begin configuring the interfaces See Chapter 4 Configuring Interfaces Catalyst 2948G L3 and Cata
7. 430596 bytes free Router copy bootflash tftp Source filename cat2948g in mz 120 7 W5 14 46 Address or name of remote host 171 10 0 111 Destination filename cat2948g in mz 120 7 W5 14 46 yes 3173364 bytes copied in 743 840 secs 4271 bytes sec I 78 10408 01 Cisco 10S Release 12 0 7 W5 15d Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide Chapter 3 Initial Switch Router Configurations HZ Using the Boot Flash Memory SIMM Copying a System Image from a TFTP Server to a Boot Flash Memory SIMM Note Step 1 Step 2 You can copy system image files from a TFTP server to the boot flash memory SIMM for use in booting the switch router It is a good idea to have a copy of the current system image on the boot flash memory SIMM in case the new image file that you copy from the TFTP server is corrupted You can also create a backup copy of your system image by copying the system image from boot flash memory to a Trivial File Transfer Protocol TFTP server You can maintain a known good image as a backup image on the TFTP server In case the new image file you copy from the TFTP server is corrupted you can then retrieve the known good backup copy of the system image file from the TFTP server Use the following commands to copy the system image from the TFTP server to a boot flash memory SIMM beginning in privileged EXEC mode Command Purpose Router dir bootflash Dis
8. 45728 bytes Verifying checksum OK 0x799F 3173128 bytes copied in 177 668 secs 17927 bytes sec Router dir bootflash Directory of bootflash 1 rw 3173128 lt no date gt cat2948g in mz 120 7 W5 14 46 16777216 bytes total 13604024 bytes free To erase a full boot flash enter yes when you are prompted to confirm erasing boot flash Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco IOS Release 12 0 7 W5 15d l Chapter3 Initial Switch Router Configurations Recovering a System Image Using Xmodem and Ymodem W Recovering a System Image Using Xmodem and Ymodem If you do not have access to a network server and need to download a system image you can copy an image from a local or remote computer such as a PC UNIX workstation or Macintosh computer using the Xmodem or Ymodem protocols This functionality primarily serves as a disaster recovery technique See Figure 3 1 Xmodem and Ymodem are common protocols used for transferring files and are included in applications such as Windows 3 1 TERMINAL EXE Windows 95 HyperTerminal Windows NT 3 5x TERMINAL EXE Windows NT 4 0 HyperTerminal and Linux UNIX freeware minicom Xmodem and Ymodem downloads are slow so you should use them only when you do not have access to a network server You can speed up the transfer by setting the transfer port speed to 57600 bps If all local system images are damaged
9. CHAPTER Initial Switch Router Configurations This chapter describes how to initially configure the Layer 3 switch routers e Starting Up the Layer 3 Switch Router e Using the Console and the Management Ports e Configuring the Management Port e Configuring the Host Name e Using the Boot Flash Memory SIMM e Recovering a System Image Using Xmodem and Ymodem e Updating the System Image amp Note You are at Step 2 in the suggested process for configuring your Layer 3 switch router see Table 2 1 on page 2 1 You should have already set up the hardware before proceeding with the initial switch router configurations Starting Up the Layer 3 Switch Router The following is a review of tasks you should have completed during hardware installation including starting up the switch router These tasks must be completed before proceeding with configuring your switch router Step 1 Check that the switch router is set for the correct AC or DC power voltages Refer to the Catalyst 2948G L3 Hardware Installation Guide or the Catalyst 4908G L3 Hardware Installation Guide for correct power voltages Step2 Connect the cables to the switch router Step3 Connect the console terminal to the switch router Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco 10S Release 12 0 7 W5 15d nE Chapter 3 Initial Switch Router Configurations HZ Using the Console and the Management Ports Ste
10. There are two types of passwords You can configure both an enable password and an enable secret password For maximum security the enable password should be different from the enable secret password e Enable password The enable password is a nonencrypted password It can contain any number of uppercase and lowercase alphanumeric characters Give the enable password only to users permitted to make configuration changes to the switch router e Enable secret password The enable secret password is a secure encrypted password By setting an encrypted password you can prevent unauthorized configuration changes On systems running Cisco IOS you must type in the enable secret password before you can access global configuration mode You must type in the enable secret password to access boot ROM software An enable secret password can contain from 1 to 25 uppercase and lowercase alphanumeric characters The first character cannot be a number Spaces are valid password characters Leading spaces are ignored trailing spaces are recognized You will configure passwords in the next section Configuring the Management Port Configuring the Management Port The management port on the switch router allows multiple simultaneous Telnet or SNMP network management sessions Since there is no separate management port on the Layer 3 switch routers you can configure any Fast Ethernet or Gigabit Ethernet port as a management port You can remotely con
11. at2948g in mz 120 7 W5 14 45 2 rw 3173364 lt no date gt cat2948g in mz 120 7 W5 14 46 16777216 bytes total 10430596 bytes free Note To retain existing images on boot flash enter no when you are prompted to confirm erasing boot flash Erasing Files from a Full Boot Flash Memory SIMM S In the event that the boot flash memory is full you must erase all the files in the boot flash memory file system before copying a new image file from the TFTP server Note Step 1 Step 2 When boot flash memory is full it is important to first make a copy of a known good image file and then copy a new system image file In case the new image file you copy from the TFTP server is corrupted you can revert to the copy of the known good system image file For a detailed example on how to first make a copy of a known good image file and then copy a new system image file refer to the Copying the System Image to the Switch Router section on page 3 14 Use the following commands to first erase and clean boot flash memory and then copy the new system image from the TFTP server to boot flash memory beginning in privileged EXEC mode Command Purpose Router dir bootflash Displays the contents of boot flash memory including the names of the images that currently reside there Router copy tftp bootflash Erases boot flash memory and copies a file from a TFTP server to boot flash memory I 78 10408 01 Cis
12. co 10S Release 12 0 7 W5 15d Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide Chapter 3 Initial Switch Router Configurations W Using the Boot Flash Memory SIMM Vy Note The following example demonstrates how to first erase and clean boot flash memory and then copy the new system image from the TFTP server to the boot flash memory SIMM Router dir bootflash Directory of bootflash 1 rw 3168032 lt no date gt pci fix 2 rw 1858797 lt no date gt domino diag f1 3 rw 3166692 lt no date gt cat2948g in mz 120 7 WX5 14 27 4 rw 3172268 lt no date gt cat2948g in mz 120 7 W5 14 42 5 rw 3173128 lt no date gt cat2948g in mz 120 7 W5 14 45 16777216 bytes total 2237976 bytes free Router copy tftp bootflash Address or name of remote host 172 10 00 00 Source filename domino cat2948g in mz 120 7 W5 14 46 Destination filename cat2948g in mz 120 7 W5 14 46 Accessing tftp 172 10 00 00 domino cat2948g in mz 120 7 W5 14 46 Erase bootflash before copying confirm yes Erasing the bootflash filesystem will remove all files Continue confirm yes Erasing device eeeeeeeeeeeceeeeeeceecececececececececeeeececeeceeceeceeceeceeeececee ee erased Erase of bootflash complete Loading domino cat2948g in mz 120 7 W5 14 46 from 172 10 00 00 via FastEthernet T r EELEPPPhhr rrr rere reer rrrrrrrrr rr errr rr rrrrrrrrrr yr ber rrrrrrrrrrrrrdrrbbbreny OK 3173128 63
13. ere rere rer renner errr er rrr perp rrr rr rrr rrr rere OK 3173128 6345728 bytes I 78 10408 01 Cisco 10S Release 12 0 7 W5 15d Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide Chapter 3 Initial Switch Router Configurations HZ Updating the System Image Verifying checksum OK 0x799F 3173128 bytes copied in 177 668 secs 17927 bytes sec Router dir bootflash Directory of bootflash 1 rw 3173128 lt no date gt cat2948g in mz 120 7 W5 14 45 gt 16777216 bytes total 13604024 bytes free Router copy tftp bootflash Address or name of remote host 172 10 00 00 Source filename domino cat2948g in mz 120 7 W5 14 45 domino cat2948g in mz 12 0 7 W5 14 46 Destination filename cat2948g in mz 120 7 W5 14 46 Accessing tftp 172 10 00 00 domino cat2948g in mz 120 7 W5 14 46 gt Erase bootflash before copying confirm no Loading domino cat2948g in mz 120 7 W5 14 46 from 172 10 00 00 via FastEthernet L EEPPPEPPrrb rbd rere rrrrrrrrrrrr yr rrr eer rrrrrrrr rr rrr rr rrrrrrrrrrrb rrr N I 3173364 6345728 bytes Verifying checksum OK 0x755F 3173364 bytes copied in 210 364 secs 15111 bytes sec Router dir bootflash Directory of bootflash 1 rw 3173128 lt no date gt cat2948g in mz 120 7 W5 14 45 2 rw 3173364 lt no date gt cat2948g in mz 120 7 W5 14 46 16777216 bytes total 10430596 bytes free Note Make sure that the file size of the
14. figure the switch router through the management port but first you must configure an IP address so that the switch router is reachable You can manually configure the management port interface from the command line interface CLI Note Before you begin to configure the management port interface manually obtain the switch router s IP address and IP subnet mask Also make sure the console cable is connected to the console port Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco 10S Release 12 0 7 W5 15d PEN Chapter 3 Initial Switch Router Configurations E Configuring the Management Port Step 1 Step 2 Step 3 Step 4 Step5 Step 6 Step7 Step 8 Step 9 Step 10 Step 11 Step 12 amp You can configure the management port from an IP connected network To obtain remote management access using Telnet use the following steps Command Purpose Router gt enable Router Enters enable mode The prompt indicates enable mode Router configure terminal Router config Enters global configuration mode You can also abbreviate the command to config terminal The Router config prompt indicates that you are in global configuration mode Router config enable password password Sets the enable password See the About Passwords section on page 3 3 Router config enable secret password Enters an enable secre
15. ile Transfer Protocol TFTP server In some implementations of TFTP you must create a dummy file on the TFTP server and give it read write and execute permissions before copying the file over it Refer to your TFTP documentation for more information Before you copy software between the network server and boot flash memory in the switch router do the following Make sure you have access to the network server and obtain its IP address and name Verify that the server has sufficient room to accommodate the Cisco IOS software image Check the filename requirements and file space of the network server To create a backup of the system software on a TFTP server use the following steps beginning in privileged EXEC mode Command Purpose Router dir bootflash Displays the contents of boot flash memory including the names of the images that currently reside there Note the name of the image file you want to copy Router copy bootflash tftp Copies a file from boot flash memory to a TFTP server Be sure to include a colon at the end of the tftp parameter as shown in this example The following example demonstrates copying a specified system image file from the boot flash memory to the default TFTP server Router dir bootflash Directory of bootflash 1 rw 3173128 lt no date gt cat2948g in mz 120 7 W5 14 45 2 rw 3173364 lt no date gt cat2948g in mz 120 7 W5 14 46 16777216 bytes total 10
16. image file you copied to boot flash memory matches the image file size on the server Reloading the Switch Router When the configuration register is set for manual booting issuing the reload command causes the system to enter ROM monitor mode where you enter the boot command and the name of the system image to use To perform this procedure you must be connected to the console port which provides access to the switch router when in ROM monitor mode For automatic booting you can issue the reload command from an Ethernet connection to the route processor Note This procedure assumes that you need to change the boot field in the configuration register from its default value so that the system reverts to ROM monitor mode when you issue the reload command Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide P36 E 78 10408 01 Cisco 10S Release 12 0 7 W5 15d Chapter3 Initial Switch Router Configurations Updating the System Image W To reload the switch router with the new system image in boot flash memory perform the following steps beginning in global configuration mode Command Purpose Step1 Router config config register 0x0 Sets the configuration register for manual booting from ROM monitor mode Step2 Router config end Returns to privileged EXEC mode Router Step3 Router copy system running config Saves your configuration changes to NVRAM nvram startup config
17. lyst 4908G L3 Software Feature and Configuration Guide Ea 78 10408 01 Cisco 10S Release 12 0 7 W5 15d
18. mage from ROM monitor using the Xmodem and Ymodem protocols use the following steps Place a Cisco IOS software image on the remote computer s hard drive You can download an image from Cisco Connection Online Transfer either from a remote or a local computer e To transfer from a remote computer connect a modem to the console port of your switch router and to the standard telephone network The modem and console port must communicate at the same speed which can be from 1200 to 57600 bps depending on the speed supported by your modem Use the confreg ROM monitor command to configure the console port transmission speed for the switch router You can also set the transmission speed with the s option S Note We recommend that you use the maximum speed of 57600 bps The size of an IOS image is approximately 3MB and takes about 10 minutes to transfer at 57600 bps Connect a modem to the remote computer and to the telephone network The remote computer dials through the telephone network and connects to the router Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco IOS Release 12 0 7 W5 15d l _ Chapter 3 Initial Switch Router Configurations Step 3 Step 4 Step 5 Step 6 Step7 Recovering a System Image Using Xmodem and Ymodem W e To transfer from a local computer connect the router s console port to a COM port serial port on the computer using a n
19. manual provided with your modem for the correct configuration information Note Because there are no hardware flow control signals available on the console port the console port terminal characteristics should match the modem settings For further details on configuring ports and modems for management access refer to the Cisco IOS Configuration Fundamentals Configuration Guide and Cisco IOS Dial Solutions Configuration Guide Modem Support for Recovering a System Image The Catalyst 2948G L3 and the Catalyst 4908G L3 support Xmodem and Ymodem protocols If all of the system images in the boot flash memory are somehow damaged or erased you can copy an image from a local or remote computer such as a PC UNIX workstation or Macintosh computer using the Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco IOS Release 12 0 7 W5 15d l Chapter3 Initial Switch Router Configurations Configuring the Management Port W Xmodem or Ymodem protocols The Xmodem and Ymodem protocols support different speeds of file transfers The maximum file transfer speed supported is 57600 baud This functionality primarily serves as a disaster recovery technique where system images are recovered using Xmodem and Ymodem commands on the ROM monitor from the console port on your switch router See the Recovering a System Image Using Xmodem and Ymodem section on page 3 11 About Passwords
20. onfig startup config Copies your configuration changes to NVRAM Using the Boot Flash Memory SIMM The Catalyst 2948G L3 and Catalyst 4908G L3 switch routers use the onboard boot flash memory as the file storage system The boot flash memory SIMM stores a copy of the switch router s software image This section describes how to use the boot flash memory SIMM to perform the following system administration tasks e Viewing the Contents of Boot Flash Memory e Deleting Files from Boot Flash Memory e Backing Up a System Image to a TFTP Server e Copying a System Image from a TFTP Server to a Boot Flash Memory SIMM e Erasing Files from a Full Boot Flash Memory SIMM Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco 10S Release 12 0 7 W5 15d nE Chapter 3 Initial Switch Router Configurations HZ Using the Boot Flash Memory SIMM Viewing the Contents of Boot Flash Memory You can perform the following tasks with the associated commands to view the contents of the onboard boot flash memory SIMM To determine which file system device you are accessing use the print working directory pwd command Router pwd bootflash To list the directory contents of any boot flash memory media use the dir bootflash command Router dir Directory of bootflash 1 rw 3153784 lt no date gt cat2948g in mz old 2 rw 3153932 lt no date gt cat2948g in mz 16777216 bytes to
21. or erased on your switch router you can perform the file transfer by using the ROM monitor On the Catalyst 2948G L3 and the Catalyst 4908G L3 you can only perform the file transfer from the ROM monitor over the console port Note Perform file transfer from the ROM monitor with either Cisco IOS Release 12 0 7 WS5 15a or later To verify the ROM monitor version use either the show version command from Cisco IOS software or issue the reset command from ROM MON mode Figure 3 1 shows file transfer using the Xmodem or Ymodem protocols The connection is from either a local or a remote computer to your switch router You can make the connection using either the COM port on the local computer or using a modem with the remote computer Figure 3 1 Transferring a System Image to a Layer 3 Switch Router Using Xmodem and Ymodem Protocols Catalyst 2948G L3 or Catalyst 4908G L3 switch router downloading a Cisco IOS software image from a local or remote PC _ ow Telephone Modem Cl d ay m Modem network Console RETE port Remote PC emy running terminal emulation software P _ and Xmodem and my Ymodem protocols Local PC running terminal emulation software and Xmodem and Ymodem protocols 38417 I 78 10408 01 Cisco IOS Release 12 0 7 W5 15d Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide Chapter 3 Initial Switch Router Configurations HZ Recovering
22. p 4 Step 5 Power on the switch router Enter CLI configuration mode by answering no when you are prompted to enter the initial dialog Would you like to enter the initial dialog yes no You see the following user EXEC prompt Router gt In this step you can also choose to answer yes and continue to use the configuration menu that is provided Using the Console and the Management Ports You can configure your switch router from a direct console connection to the console port or remotely through its management port e If you are using a direct console connection configure your terminal emulation program for 9600 baud 8 data bits no parity and 1 stop bit e If you are configuring the management port you must assign an IP address to any Fast Ethernet or Gigabit Ethernet port on your switch router which serves as a management port For interface configuration instructions see the Configuring the Management Port section on page 3 3 For further details on configuring ports and lines for management access refer to the Cisco IOS Configuration Fundamentals Configuration Guide Modem Support You can connect a modem to the console port or to the auxiliary port on the switch router The following settings on the modem are required e Enable auto answer mode e Suppress result codes You can configure your modem by setting the DIP switches on the modem or by connecting the modem to terminal equipment Refer to the user
23. plays the contents of boot flash memory including the names of the images that currently reside there Router copy tftp bootflash Copies a file from a TFTP server to boot flash memory The following example demonstrates copying a system image from the TFTP server to the boot flash memory SIMM without erasing the previous image file Router dir bootflash Directory of bootflash 1 rw 3173128 lt no date gt cat2948g in mz 120 7 W5 14 45 16777216 bytes total 13604024 bytes free Router copy tftp bootflash Address or name of remote host 172 10 00 00 Source filename domino cat2948g in mz 120 7 W5 14 45 domino cat2948g in mz 12 0 7 W5 14 46 Destination filename cat2948g in mz 120 7 W5 14 46 Accessing tftp 172 10 00 00 domino cat2948g in mz 120 7 W5 14 46 Erase bootflash before copying confirm no Loading domino cat2948g in mz 120 7 W5 14 46 from 172 10 00 00 via FastEthernet He EEEPPPEPLrr rrr Pre ree rrrrrrr rr rrr rr err eerrrrrrrrr rr rrr rrr rrrrrrrrrrdrrbrerersy l OK 3173364 6345728 bytes Verifying checksum OK 0x755F 3173364 bytes copied in 210 364 secs 15111 bytes sec E Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco IOS Release 12 0 7 W5 15d l Chapter3 Initial Switch Router Configurations Using the Boot Flash Memory SIMM W Router dir bootflash Directory of bootflash 1 rw 3173128 lt no date gt c
24. rom the TFTP server In addition before you copy a new image from the TFTP server you must first download a copy of your known good image In case the new image file you copy from the TFTP server is corrupted you can revert to the known good image B Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco IOS Release 12 0 7 W5 15d l Chapter3 Initial Switch Router Configurations Step 1 Step 2 Step 3 Step 4 Step5 v Vy Updating the System Image W To copy both the known good system image and the new system image from a TFTP server to the file system on your switch router initiate a Telnet session or console connection to the switch router Perform the following steps in privileged EXEC mode Command Purpose Router dir bootflash Displays the contents and available space in boot flash memory If there is not enough free space to copy the new system image perform steps 2 through 5 Otherwise proceed to Step 4 Router copy tftp bootflash Erases boot flash memory and copies a file from a TFTP server to boot flash memory Make sure you copy the known good system image file Router dir bootflash Displays the contents of boot flash memory This step confirms that space was available in boot flash memory and the known good image file was copied as expected You can now proceed with downloading the latest image Router copy tftp bootflash Initiates
25. t password Once set a user must enter the enable secret password to gain access to global configuration mode Router config interface type number Router config if Enters interface configuration mode on the Ethernet interface You can use any Fast Ethernet interface 1 48 or any Gigabit Ethernet interface 49 50 on the Catalyst 2948G L3 or any Gigabit Ethernet interface 1 8 on the Catalyst 4908G L3 to configure the management port Router config if ip address ip address subnetmask Enters the IP address and IP subnet mask for the interface specified in Step 5 Router config if no shutdown Enables the interface Router config if exit Router config Returns to global configuration mode Router config line vty line number Router config line Enters line configuration mode for virtual terminal connections Commands entered in this mode control the operation of Telnet sessions to the switch router Router config line password password Enters a password for Telnet sessions Router config line end Router Returns to privileged EXEC mode Router copy running config startup config Saves your configuration changes to NVRAM Note Any Fast Ethernet interface 1 48 and any Gigabit Ethernet interface 49 50 on the Catalyst 2948G L3 switch router or any Gigabit Ethernet interface 1 8 on the Catalyst 4908G L3 switch router can be configured as a management port
26. tal 7315372 bytes free Router Deleting Files from Boot Flash Memory gt Caution When you delete a file from boot flash memory the system marks the file as deleted Deleted files cannot be recovered The boot flash memory is not released after the image file has been deleted only the image file is marked as deleted When deleting files from memory be careful not to delete all the system images You should always retain one known good image as a backup image To delete a file use the delete command The following example demonstrates how a specified image file is deleted using the delete command Router dir Directory of bootflash rw 3153784 lt no date gt cat2948g in mz old rw 3153932 lt no date gt cat2948g in mz 16777216 bytes total 7315372 bytes free Router delete cat2948g in mz old Delete filename cat2948g in mz old Delete bootflash cat2948g in mz old confirm Router dir Directory of bootflash rw 3153932 lt no date gt cat2948g in mz 16777216 bytes total 7315372 bytes free Catalyst 2948G L3 and Catalyst 4908G L3 Software Feature and Configuration Guide 78 10408 01 Cisco IOS Release 12 0 7 W5 15d l Chapter3 Initial Switch Router Configurations Using the Boot Flash Memory SIMM W Backing Up a System Image to a TFTP Server Tips Step 1 Step 2 To create a backup copy of your system image you can copy system images from boot flash memory to a Trivial F
27. ull modem cable The console port speed configured on the router must match the transfer speed configured on the local computer amp Note If you are transferring from a local computer you may need to configure the terminal emulation program to ignore RTS DTR signals You see a ROM monitor prompt in the terminal emulation window rommon gt Enter the xmodem ROM monitor command The image is downloaded to DRAM and normally executes on completion of the file transfer The c option specifies CRC 16 checksum which is more thorough than a standard checksum if supported by your computer The following example shows how to use the xmodem command to transfer an IOS image in ROM monitor rommon gt xmodem y s57600 Do not start sending the image yet Invoke this application for disaster recovery Do you wish to continue y n n yes Note if the console port is attached to a modem both the console port and the modem must be operating at the same baud rate Use console speed 57600 bps for download confirm Download will be performed at 57600 Make sure your terminal emulator is set to this speed before sending file Ready to receive file Start an Xmodem send operation which is initiated from the terminal emulation software on the local or remote computer that is sending the system image to the router Refer to your emulation software application s manual for instructions on how to execute an Xmodem file transfer
28. use the following steps Download the system image from CCO Copy the system image to the switch router Reload the switch router with the new image Downloading System Images from CCO Cisco IOS system images along with other software are available from the Software Center on Cisco Connection Online CCO at http www cisco com You can download system images from CCO using your browser s FTP capability using conventional FTP or using CCO s asynchronous dial up interface For instructions on accessing and downloading software from CCO refer to the Software Downloading from CCO via World Wide Web publication at the Software Center on CCO Copying the System Image to the Switch Router amp You can copy the system image to the switch router using TFTP FTP or RCP If the system you used to download the image from CCO does not function as a TFTP FTP or RCP server you must first copy the file to an intermediate server that provides those services to your switch router Note Before copying the system image from the server to the switch router check the size of the file to make sure you will have enough room for it in your switch router s boot flash memory On UNIX file systems use the Is la command from the directory where the file is stored to display the file size In the event that the boot flash memory is full you must erase all the files in the boot flash memory file system before copying a new image file f

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