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What is the difference between ROM and NVRAM?

What is the difference between ROM and NVRAM?

If you make changes to ROM you can reset the password in a config file. The NVRAM is used to store the configuration and can hold additional backup configs. NVRAM is nonvolatile RAM that stores the startup configuration (startup-config) which is used when the switch is powered on/reloaded.

How do I show NVRAM?

The command that will display the contents of NVRAM is “Switch#show startup-configuration”.

Is NVRAM startup-config?

NVRAM stores the configuration information on the network server in text form as configuration commands. For all platforms except the Cisco 7000 family, the show startup-config command shows the version number of the software used when you last executed the copy running-config startup-config command.

How do I clear NVRAM on my router?

Follow these steps:

  1. Log on to your switch, and enter the privileged EXEC mode by entering enable and then entering the enable password command.
  2. Enter write erase, which erases the NVRAM file system and removes all files.
  3. At the prompt, confirm that you want to erase all files.

What is the function of a NVRAM in a router?

to store the routing table

  • to retain contents when power is removed
  • to store the startup configuration file
  • to contain the running configuration file
  • so the startup configuration file is preserved even if the router loses power.
  • How do you Access Cisco router?

    To access Cisco router with CCP following steps are required. Connect to your router using console and configure it for Telnet and SSH. Configure SSH and Telnet for local login and privilege level 15. Enable the router’s HTTP or HTTPS server. Create a user with privilege level 15. Discover the router with CCP.

    What is the configuration of a router?

    Basic configuration of the router includes configuration of the IP address, default routing, static and dynamic routing, static and dynamic NATing, host name, banner, secret password, user accounts, and other options.