Cisco MDS fabric switch | Command Line cheat sheet

CISCO MDS CLI Cheat Sheet

Show tech-support  is one of the common command that we use in Cisco switches to collect almost all information about the switch.It is very useful for troubleshooting purpose.The output of this command can be provided to technical support representatives when reporting a problem.

To Collect Information from Cisco Switch Use the below mentioned commands
# term len 0
# show tech-support details

Show tech-support will provide a combined output of several other show commands output.

The default output of the show tech-support command includes the output of the following commands:

# show version
# show environment
# show module
# show hardware
# show running-config
# show interface
# show accounting log
# show processes

Useful cisco SAN Switch CLIs commands:

Below are some useful Cisco CLI commands and also the procedure to do zoning using Cisco CLI commands:

Show Commands

Command	Description
show clock	To display the system date and time and verify the time zone configuration, use the show clock command.
show environment	To display all environment-related switch information (status of chassis clock,fan modules, power supply modules etc
show fcalias	To display the member name information in a Fibre Channel alias (fcalias),
show interface brief	shows the status of the ports on the switch
show interface counters	port errors and details of transmission
show interface counters brief	port transmission details in brief
show interface transceiver	shows details of the sfps used on the ports of the switch
show running-config	show the details of the switch, ports , firmware , etc
show interface mgmt0	To display the details of the management console
show vsan xX	To display details of a VSAN
show module	To display details of the switching module
show interface fcx/x capabilities	To details of the matrix support for that port
show port-resources module x	To check port resources like bb credits , rate mode , bandwidth for ports on a 24/48 bit module
show interface trunk vsan x-x	To checkper vsan information on trunk ports
show vsan membership interface fcx/x – x	To check the vsan membership on port level for an interface
show vsan x membership	To check the ports that are part of a vsan
show version	To display the version of system software that is currently running on the switch, use the show version command.
show vsan	To display information about configured VSAN
show vsan usage	To check the vsans created and available vsan ids to be created
show wwn	To display the status of the WWN configuration
show zone	To display zone information
show zoneset	To display the configured zone sets
show zoneset active vsan xx	To display the active zoneset for a particular vsan
show flogi	To list all the FLOGI sessions through all interfaces across all VSANs
show hardware	To display switch hardware inventory details,
show port-channel	Use the show port-channel command to view information about existing PortChannel configurations.
show running-config	To display the running configuration file
show startup-config	To display the startup configuration file
show switchname	To display the switch network name, use the show switchname command.
show tech-support	To display information useful to technical support when reporting a problem
show user-account	To display configured information about user accounts
show fc-tunnel	To display configured Fibre Channel tunnel information

Configuration Commands:

Command	Description
config t	This CLI sequence will disable/enable a port on the switch and saves the configuration
interface fcx/x
shutdown / no shutdown
copy running-config startup-config
config t	This command sequence put a decription for a switch port(here putting description as emcsaninfo) and saves the configuration
interface fcx/x
switchport description emcsaninfo
copy running-config startup-config
config t	This will Assign a bbcredits to a switch port and saves the configuration
interface fcx/x
switchport fcrxbbcredit xx/default
copy running-config startup-config”
config t	This will Set ip address for the management interface,set default gateway and save the configuration
interface mgmt0
ipaddress xx.xx.xx.xx 255.255.255.255
no shutdown
ip default-gateway 1.1.2.3
copy running-config startup- config”
config t	To delete a Vsan , cannot delete default vsan
vsan database
no vsan XX
config t	This step will disable or enable a vsan XX
interface vsan xx
shutdown / no shutdown
config t	This will used to set port speed
interface fcx/x
switchport speed 1000/2000/4000/auto/auto max xxxx
config t	This will used for configuring rate mode of a switch port
interface fc x/x
switchport rate-mode dedicated/shared
config t	Steps to add a port to a port channel
interface fc x/x
channel-group x/auto
config t	Steps to manually set the port type on a switch
interface fc x/x
switchport mode e/f/fl/n
config t	Steps to enable trunk protocol on a swith (default)
trunk protocol enable
config t	Steps to enable/disable trunk on a port level
interface fc x/x
switchport trunk mode on/off/auto
config t	Steps to configure an allowed list of vsans to communicate through that port (TE PORT) and allows to add a specific vsan to the allowed list of vsans
interface fc x/x
switchport trunk allowed vsan x-x/x
switchport trunk allowed vsan add x
config t	Steps to forcefully reconfigure without affecting traffic and force vsan to configure with data traffic affected
fcdomain restart vsan x
fcdomain restart disruptive vsan x
config t	Steps to create a new vsan (default)
vsan database
vsan x
config t	Steps to delete a vsan
vsan database
no vsan x
config t	Steps to create a vsan ,then assign a name. Steps to suspend a vsan and unsuspend it
vsan database
vsan x
vsan x name abc
vsan x suspend
no vsan x suspend
end
config t	Steps to create a vsan and add a port on interface into a vsan
vsan database
vsan x
vsan x interface fcx/x
config t	Steps to remove a port on an interface from a vsan
vsan database
vsan x
no vsan x interface fcx/x
config t	Steps to remove a port on an interface from a vsan
vsan database
vsan x
no vsan x interface fcx/x