Deleting VLAN on Cisco 887



As an IT administrator, it is important to understand how to delete a VLAN on a Cisco 887 router. VLANs are virtual networks that allow for physical segmentation of the network and can be used to create different network segments. The ability to delete a VLAN from a Cisco 887 router is a crucial part of network administration.

The process of deleting a VLAN on a Cisco 887 router is relatively straightforward. First, the administrator should login to the router using the Cisco IOS command line interface (CLI). From the CLI, the administrator should enter the command “show vlan” to view a list of all the VLANs currently configured on the router. Once the VLAN to be deleted is identified, the administrator should enter the command “no vlan [vlan_number]” to delete the VLAN. This command will delete the VLAN and any associated information, including VLAN interfaces and port assignments.

Once the VLAN has been deleted, the administrator should verify the deletion by entering the “show vlan” command again. This will show a list of all the VLANs currently configured on the router, with the deleted VLAN no longer present. The administrator should also check for any errors that may have occurred during the deletion process by entering the “show log” command.

When deleting a VLAN from a Cisco 887 router, the administrator should be aware that all associated port assignments will also be deleted. This includes any ports that are configured to be members of the VLAN, as well as any ports that are configured to be “tagged” in the VLAN. Additionally, when deleting a VLAN, the administrator should also be aware that any associated port security settings will also be deleted.

Finally, if the deleted VLAN is being used for routing traffic, the administrator should also be aware that any static routes within the VLAN may be deleted as well. This could cause the network to become inaccessible if the static routes are not reconfigured after the VLAN is deleted.

In summary, deleting a VLAN on a Cisco 887 router is a straightforward process. The administrator should login to the router using the CLI and enter the command “show vlan” to view a list of all the VLANs currently configured. Once the VLAN to be deleted is identified, the administrator should enter the command “no vlan [vlan_number]” to delete the VLAN. After the VLAN is deleted, the administrator should verify the deletion by entering the “show vlan” and “show log” commands. Additionally, the administrator should be aware that all associated port assignments and port security settings will be deleted when the VLAN is deleted, and that any static routes within the VLAN may also be deleted.

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