Cisco Show Commands

1. Display values about routing protocols and routing protocol timer information:

  router#show ip protocols

2. Display ip routing table:

  router#show ip route

3. Display routing protocols updates:

  router#debug ip rip
  router#debug ip igrp
  router#debug ip eigrp
  router#debug ip ospf

4. Verify OSPF Configuration:

  show ip protocol
  show ip route
  show ip ospf interface
  show ip ospf
  show ip ospf neighbour detail
  show ip ospf database
  clear ip route*
  clear ip route address
  debug ip ospf

5. Verify EIGRP Configuration:

  show ip protocol
  show ip route
  show ip eigrp neighbors (interface no) details
  show ip eigrp interfaces (interface no) (as-number) details
  show ip eigrp topology (as-number) (ipaddress) (mask)
  show ip eigrp topology (active) (pending) (zero-successors)
  show ip eigrp toplogy all-links
  show ip eigrp traffic (as-number)
  debug eigrp fsm
  debug eigrp packet

6. Hyper Terminal Settings

  Bits per second : 9600
  Data bits : 8
  Parity : None
  Stop bits : 1
  Flow control : Hardware

7. Show Port Properties:

  switch#show interface fastethernet0/1
  router#show interface fastethernet0/1

8. VLAN properties:

   switch#show vlan

9. Show Directory Flash:

  switch#directory flash:
  router#show flash

10. Display IOS Version Information:

  switch#show version

11. Managing Mac Address Table:

  switch#show mac-address-table
  switch#clear mac-address-table

12. Show running-config and startup-config

  switch#show running-config
  switch#show startup-config

  Copy Configurations:

  copy startup-config running-config
  copy running-config startup-config
  copy running-config tftp
  copy startup-config tftp
  copy flash tftp : Uploads IOS to tftp server.
  copy tftp flash : Downloads IOS from tftp to flash.
     
13. Port Information Support:

  switch#show port capabilities 2/1

14. Download and run Router Configuration from tftp server every time router start

  router(config)#boot host tftp

15. Prevent debug messages output interruption while typing commands:

  router(config-line)#logging synchronous

16. View CDP Information received from all routers:

  router#show cdp entry

17. Command used to view port-channel information on 2950 Cataslyst switch:

  switch#show etherchannel

18. Command Used to send Debug output to RAM:

  router(config)#logging buffered

  To View Logging :

  router#show log

19.  Command to display list of static and dynamic mappings between ip addresses and frame-relay DLCIs:

  router#show frame-relay map

20. Command would display the status of DLCI and traffic:

  router# show frame-relay pvc

21. Command used to check physical layer of interface BRI connection:

  router#show interface bri 0
  router#show isdn status

22. Command used in a 2950 catalyst switch to see a list of forwarding ports in                 
    spanning tree. (Including a list of all port in each vlan , whether they are             
    forwarding or blocking etc:

  router#show spanning-tree
 
23. Command to display current port status and VLAN assignment:

  router#show interface status