How to quickly save Study Notes When configuring a vro

It is not very easy to configure a vro. So I have studied how to save the vro quickly. Here I will share with you, hoping it will be useful to you. Cisco stores its system software in Fiashmemory. Every time a router is opened, the system is called out from Flashmemory and executed.

After the machine is turned on, enter the Initialization Configuration vro or use "configer" and "setup" for vro configuration, the configuration vro should be saved so that the next start to directly open and run, this is the configuration file. The configuration vro file is stored in NVRAM, which is very easy to lose. If it is lost, the entire network will fail. Therefore, we need to back up the configuration vro file so that it can be quickly restored when lost.

I. Back up system images and configuration files

It is a good practice to save the configuration router file of the system file on the server in the network. This helps restore the system as quickly as possible when the system or configuration file is lost. Copy the system image to the network server. First, the file name of the IOS file is displayed. The command is "showflash". Copy the system file to TFTPServer. The command is "copyflashtftp". Copy the configuration file to the network server, save the configuration file in TFTPServer. The command is: copyrunning-configtftp or copystartup-configtftp.

Ii. upgrade the system image and configuration file

When the system fails, the system is upgraded, and the router file is copied, We need to copy the software on the server to the router. Copy the system image from the network server to FlashMemory. A computer is required to be used as the TFTPServer on the network, and the system file is copied to the FlashMemory of the router using TFTP. We recommend that you keep a backup of the original system of the vro before performing system upgrade to prevent upgrade failures caused by incorrect operations, including the configuration files in IOS and NVRAM in Flash.

(1) copy the system file to FlashMemory.

(2) copy the configuration vro file from the network server to the vronvnvram.

Iii. Notes for the upgrade process

(1) It is recommended that the computer that configures the router use the serial port to connect to the CONSOLE port of the router. the TFTP server software is installed on this computer to facilitate reliable transmission of IOS files.

(2) the IP address of the TFTP server must be in the same network segment as the Ethernet port of the router.

(3) When upgrading IOS, you should note that if the new version of IOS files is larger than the Flash memory capacity, you should increase the Flash capacity.

(4) always remember to be cautious when upgrading to prevent the loss of operating system files and the failure to start the system. With backup, we can easily recover it in just a few minutes even if it is lost, and no longer have to worry about it.