Network Learning

    IOS Upgradation on Cisco Switch's As we know cisco introduced the new IOS version with their different features to upgrade the services and performance in the real time network. Below process is common for all the cisco legacy routers that includes the latest version of routers and old models as well. First we need to download the Latest Image IOS as per the model (Ex: 9300, 3850, 3650 etc)  from cisco site and whatever IOS is recommended in your organization Infrastructure. Once you downloaded the Image then copy it into the router ( You can copy the image via from TFTP, FTP and USB drive ) as the Cisco Routers having a USB port as well to move the data from external USB stick to Router Flash drive. (Please refer Router upgrade blog to get more details)   Verifying MD5 Value: Once the required IOS image is copied into the router. Please verify the MD5 value of IOS image to check the image is not corrupted while copying the from TFTP/USB/ from device to device. Command:   Verif

  IOS Upgradation on Cisco Routers As we know cisco introduced the new IOS version with their different features to upgrade the services and performance in the real time network. Below process is common for all the cisco legacy routers that includes the latest version of routers and old models as well. First we need to download the Latest Image IOS as per the model (Ex: 8300, 4300, 2800 etc)  from cisco site and whatever IOS is recommended in your organization Infrastructure. Once you downloaded the Image then copy it into the router ( You can copy the image via from TFTP, FTP and USB drive ) as the Cisco Routers having a USB port as well to move the data from external USB stick to Router Flash drive.     Commands:             USB : copy usb0:<IOS name> bootflash:     for example : copy usb0:isr4300-universalk9.16.06.08.SPA.bin     bootflash:                   TFTP Server : copy tftp: bootflash:      copy tftp: bootflash:      TFTP Server IP : [x.x.x.x]  // Defines the TFTP serv