Cisco Commands

This is a cheat list of the most used operational and troubleshooting commands used in Cisco IOS and IOS-XR. If you want to contribute with more commands, please drop us an email at Esta dirección de correo electrónico está siendo protegida contra los robots de spam. Necesita tener JavaScript habilitado para poder verlo.

Cisco Network Commands
 show interfaces Displays information of all interfaces in the chassis or one specified interface
 show interfaces switchport Displays the status of a switching (non routing) port
 show interfaces trunk Displays information on the interface-trunk
 show ip interface Displays statuses of all IPv4 interfaces, add brief to get a summary
 show ipv6 interface Displays statuses of all IPv6 interfaces, add brief to get a summary
 show ip traffic Displays statistics on IP traffic
 show ip route Displays the IPv4 routing table of the router
 show ipv6 route Displays the IPv6 routing table of the router
 show ip wccp Displays information related to the Web Cache Control Protocol
 show controllers Displays clock rate and connected cable type for interface hardware element
 show controllers tech-support Displays general information about a VIP card for problem reporting
 show clock Displays the system clock of the router
 show environment Displays temperature, voltage, and blower information
 show hosts Displays the configured hostnames and their corresponding IP addresses of the router
 show users Displays all users connected to the router
 show inventory Displays the product inventory listing and UDI of all Cisco products installed on the router
 show file systems Lists available file systems
 show disk: Displays file system information for the disk at the given slot number
 show processes detailed Displays detailed information about all current processes or a specified process
 show processes cpu Displays all processes and their CPU utilization
 show history Displays command line history
 show flash Displays information about Flash memory
 show version Displays information about loaded Cisco IOS software
 show mac-address table Displays the MAC address table
 show arp Displays the ARP table of the router address to MAC address mappings
 show protocols Displays status of configured Layer 3 protocols; both parameters are optional
 show logging Displays the state of syslog and the contents of the standard system logging buffer.
 show startup-config Displays configuration saved in NVRAM
 show running-config Displays configuration currently running in RAM
 show spanning-tree Displays information about the spanning tree state
 show vlan Displays VLAN information
 show context Displays context data
 show cef Displays information about packets sent by Cisco Express Forwarding
 show clns Displays information on connectionless-mode network service packets that have passed through the router
 show cdp neighbors Displays information of connected routers found through the Cisco Discovery Protocol
 show system jumbomtu Displays the system maximum transmission unit size
 show current Displays the current Multiple Spanning Tree Protocol settings and allows you to edit them
 show pending Displays the candidate Multiple Spanning Tree Protocol settings and allows you to edit them
show ip bgp summary Displays the status of all Border Gateway Protocol (BGP) connections
show ip bgp net mask Shows you how that route is being advertised, look for the first line
show ip bgp net mask longer-prefixes Shows you how that route is being advertised, look for the first line
show ip bgp regexp AS-regexp Displays routes matching the autonomous system (AS) path regular expression
show ip bgp neighbors neigh received-routes Shows whether a neighbor supports the route refresh capability
show ip bgp neighbor neigh advertised-routes Shows whether a neighbor supports the route refresh capability
show clns neighbors Displays both ES and IS neighbors
show clns interface Shows specific information about each interface
show ip route isis Displays the current state of the the routing table
show isis topology Displays a list of all connected routers in all areas
show ip ospf neighbors Shows neighbor ID, Priority, IP, & State if the neighbor router, dead time
show ip ospf interface Shows neighbor id, pri, state, dead time, address and interface
show ip route ospf Displays the current state of the routing table
show ip ospf database Displays list of information related to the OSPF database for a specific communication server