![]() We also include dynamic routes with OSPF. From displaying a routing table, creating static, to default route. This section includes some of the most simple yet useful ip connectivity IOS commands. Sets the 802.1Q encapsulation on the trunk link. Set the interface link type as a trunk link. In the global configuration mode, set the device as server, client, or transparent vtp mode.Īn interface configuration mode. Set the interface range to a channel group. In the interface configuration mode, the command assigns the interface link type as an access link.Īccess interface range configuration mode from Interface Configuration.Īssign the Etherchannel. Within the VLAN configuration mode, assign a name to the VLAN The output does not include trunks.ĭisplay configuration settings about all the switch port interfaces.ĭisplay information about the operational trunks along with their VLANs.Įnter VLAN configuration mode and create a VLAN with an associated number ID. Lists each VLAN and all interfaces assigned to that VLAN. Show detailed information of each port in the spanning-tree process. Show a summary of all SP instances and ports. Manually set the bridge priority per vlan. The “no lldp run” disables it.ĭisplay all the MAC address entries in a table.Ī global configuration command that configures the device for Rapid Per VLAN Spanning Tree protocol. The “lldp run” command enables the LLDP Protocol. The “cdp run” command enables Cisco Discovery Protocol. We’ll also cover simple Etherchannel, Rapid PVST+ Spanning Tree Protocol configuration. From how to configure and verify VLANs, trunks, to Layer 2 discovery protocols like CDP and LLDP. This section covers all popular Cisco’s network access protocols. The command achieves the similar outcome as “erase nvram” The NVRAM will take the latest configuration.Įrase the NVRAM filesystem. The command returns the device to its factory default. It copies a file (or set of files) from a location to another location.ĭelete the current startup configuration files. It saves (overwrites) the startup configuration into the running configuration. The command saves the configuration so when the device reloads, it loads the latest configuration file. Saves the current (running) configuration in the startup configuration into the NVRAM. Use both to reset.ĭisplays the usability status of the protocols for the interfaces.ĭisplays the running configuration for a specific interface. Commandĭisplay information about IOS and router.ĭisplay physical attributes of the router’s interfaces.ĭisplay the current state of the routing table.ĭisplay current configured ACLs and their contents.ĭisplays a summary of the status for each interface.Īssign an IP address to the specified interface. These commands give you the necessary base to move to more advanced and specific commands. The following are the fundamental Cisco IOS commands. ![]() Vlan database, accessible from the privileged EXEC mode.Ĭommands To Move Between These Six Modes: CommandĮnter line from Global configuration mode. Accessed via the configuration modeĬonfig-vlan, accessible via the global configuration mode. Accessible only via the privileged EXEC mode. The second level of access, accessible with the “enable” command.Ĭonfiguration mode. User EXEC mode, is the first level of access. There are currently eight modes in Cisco IOS commands. Knowing the difference between the different modes (and how to move across) will help you configure, monitor, or troubleshoot a router easier. The commands in Cisco IOS are hierarchical structured. You can use this concise set of commands for a quick reference as needed! Quick Links In this Cisco Commands cheat sheet article, we’ll go through the most crucial set of Cisco IOS commands that you'll need as an admin daily. From this user interface, you can directly execute all Cisco IOS commands, and it doesn’t matter how you reach the Cisco IOS platform you can enter any CLI command from a remote, console, or terminal interface. The Cisco IOS CLI is the main user interface for configuring, maintaining, and troubleshooting most Cisco devices. ![]()
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