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Module 10 Network managament - Coggle Diagram

- - - - To disable CDP on a specific interface, such as the interface facing an ISP, enter no cdp enable in the interface configuration mode. CDP is still enabled on the device; however, no more CDP advertisements will be sent out that interface. To enable CDP on the specific interface again, enter cdp enable, as shown in the example.
    - - Use the show cdp interface command to display the interfaces that are CDP-enabled on a device. The status of each interface is also displayed. The figure shows that five interfaces are CDP-enabled on the router with only one active connection to another device.
- - - - Depending on the device, LLDP may be enabled by default. To enable LLDP globally on a Cisco network device, enter the lldp run command in the global configuration mode. To disable LLDP, enter the no lldp run command in the global configuration mode.
      - With LLDP enabled, device neighbors can be discovered by using the show lldp neighbors command, as displayed in the output.
        
        The network administrator discovers that S1 has a router and a switch as a neighbors. For this output, the letter B for bridge also means switch.
        From the results of show lldp neighbors, a topology from S1 can be constructed.
- - - - Backup IOS Image to TFTP Server Example
        
        Step 1. Ping the TFTP server.
        
        Step 2. Verify image size in flash.
        
        Step 3. Copy the image to the TFTP server.
      - Copy an IOS Image to a Device Example
        
        Step 1. Ping the TFTP server.
        
        Step 2. Verify the amount of free flash.
        
        Step 3. Copy the new IOS image to flash.
      - To upgrade to the copied IOS image after that image is saved on the flash memory of the router, configure the router to load the new image during bootup by using the boot system command, as shown in the example. Save the configuration. Reload the router to boot the router with new image. At the [confirm] prompt, press Enter to continue. Otherwise press Control-C to cancel.