Cisco MDS 9000 Family Configuration Guide, Release 1.0(2a) - Before You Begin [Cisco MDS 9000 NX-OS and SAN-OS Software]

Table Of Contents

Before You Begin

About the Switch Prompt

About the CLI Command Modes

Understanding CLI Command Hierarchy

EXEC Mode Options

Configuration Mode

Configuration Mode Commands and Submodes

Navigating Through CLI Commands

Getting Help

Command Completion

Using the no and Default Forms of Commands

Entering CLI Commands

Viewing a Configuration

Using the File System

Setting the Current Directory

Displaying the Current Directory

Listing the Files in a Directory

Creating a New Directory

Deleting an Existing Directory

Moving Files

Copying Files

Displaying File Contents

Displaying Disk Usage

Displaying Users

Executing Commands Specified in a Script

Setting the Delay Time

Displaying the Last Line in a File

Setting the Switch's Shell Timeout

Setting the Switch's Terminal Type

Setting the Switch's Terminal Length

Setting the Switch's Terminal Width

Displaying Terminal Settings

Saving Command Output to a File

Sending Messages to Users

Using ping

Using traceroute

Saving a Configuration

Clearing a Configuration

Role-Based CLI

Using Valid Formats and Ranges

Before You Begin

This chapter prepares you to configure switches from the CLI. It also lists the information you need to have before you begin, and it describes the CLI command modes.

This chapter includes the following sections:

•About the Switch Prompt

•About the CLI Command Modes

•Understanding CLI Command Hierarchy

•Navigating Through CLI Commands

•Using the File System

•Role-Based CLI

•Using Valid Formats and Ranges

About the Switch Prompt

If you are connected to the console port when the switch boots up, you see the output show in Figure 2-1:

Note Refer to the Cisco MDS 9200 Series Hardware Installation Guide or the Cisco MDS 9500 Series Hardware Installation Guide for installation and connection instructions.

Once the switch is powered on successfully, you see the default switch prompt (switch#). You can perform embedded CLI operations, access command history, and use command parsing functions at this prompt. The switch gathers the command string upon detecting an Enter (CR) and accepts commands from a terminal.

Figure 2-1 Output When a Switch Boots Up

About the CLI Command Modes

Switches in the Cisco MDS 9000 Family have two main command modes—user EXEC mode and configuration mode. The commands available to you depend on the mode you are in. To obtain a list of available commands in either mode, type a question mark (?) at the system prompt.

Table 2-1 lists and describes the two commonly used modes, how to enter the modes, and the resulting system prompts. The system prompt helps you identify which mode you are in and, hence, which commands are available to you.
Table 2-1 Command Modes
Mode

Description of Use

How to Access

Prompt
EXEC

Enables you to temporarily change terminal settings, perform basic tests, and display system information.

Note Changes made in this mode are generally not saved across system resets.

At the switch prompt, enter the required EXEC mode command.
switch#
Configuration mode

Enables you to configure features that affect the system as a whole.

Note Changes made in this mode are saved across system resets if you save your configuration. See the "Saving a Configuration" section.

From EXEC mode, enter the configure terminal command.
switch(config)#
You can abbreviate commands by entering just enough characters to make the command unique from other commands. For example, you can abbreviate the configure terminal command to conf t.

Understanding CLI Command Hierarchy

The CLI commands are organized hierarchically, with commands that perform similar functions grouped under the same level. For example, all commands that display information about the system, configuration, or hardware are grouped under the show command, and all commands that allow you to configure the switch are grouped under the config command. Figure 2-2 illustrates a portion of the config terminal command hierarchy.

Figure 2-2 CLI Command Hierarchy Example

To execute a command, you enter the command by starting at the top level of the hierarchy. For example, to configure a Fibre Channel interface, use the config terminal command. Once you are in configuration mode, issue the interface command. When you are in the interface submode, you can query the available commands there.

The following example shows how to query the available commands in the interface submode:
switch# config t
Enter configuration commands, one per line. End with CNTL/Z.
switch(config)# interface fc1/1
switch(config-if)# ?
Interface configuration commands:
  channel-group  Add to/remove from a port-channel
  exit           Exit from this submode
  fcdomain       Enter the interface submode
  fspf           To configure FSPF related parameters
  no             Negate a command or set its defaults
  shutdown       Enable/disable an interface
  switchport     Configure switchport parameters
EXEC Mode Options

When you start a session on the switch, you begin in EXEC mode. Based on the role or group to which you belong, you have access to limited commands or to all commands (see the "Role-Based Authorization" section). From the EXEC mode, you can enter configuration mode. Most of the EXEC commands are one-time commands, such as show commands, which display the current configuration status. Here is a list of EXEC mode commands:
switch# ?
Exec Commands:
  attach      Connect to a specific linecard
  bios        BIOS related command
  callhome    Callhome commands
  cd          Change current directory
  clear       Reset functions
  clock       Manage the system clock
  config      Enter configuration mode
  copy        Copy from one file to another
  debug       Debugging functions
  delete      Remove files
  dir         Directory listing for files
  discover    Discover information
  exit        Exit from this submode
  fcping      Ping an N-Port
  fctrace     Trace the route for an N-Port.
  find        Find a file below the current directory
  format      Format disks
  init        Initialize internal disk
  install     Non-disruptive upgrade for system and linecards
  load        Load system image
  mkdir       Create new directory
  move        Move files
  no          Disable debugging functions
  ping        Send echo messages
  purge       Deletes unused data
  pwd         View current directory
  reload      Reboot the entire box
  rmdir       Remove existing directory
  run-script  Run shell scripts
  send        Send message to all the open sessions
  setup       Run the basic SETUP command facility
  show        Show running system information
  sleep       Sleep for the specified number of seconds
  system      System management commands
  tail        Display the last part of a file
  telnet      Telnet to another system
  terminal    Set terminal line parameters
  test        Test command
  traceroute  Trace route to destination
  undebug     Disable Debugging functions (See also debug)
  write       Write current configuration
  zone        Execute Zone Server commands
Configuration Mode

Configuration mode allows you to make changes to the existing configuration. When you save the configuration, these commands are preserved across switch reboots. Once you are in configuration mode, you can enter interface configuration mode, zone configuration mode, and a variety of protocol-specific modes. Configuration mode is the starting point for all configuration commands. When you are in configuration mode, the switch expects configuration commands from the user.

The following example shows output from the config terminal command:
switch# config terminal
Enter configuration commands, one per line. End with CNTL/Z.
switch(config)# 
Configuration Mode Commands and Submodes

The following is a list of configuration mode commands:
switch# config t
Enter configuration commands, one per line. End with CNTL/Z.
switch(config)# ?
Configure commands:
  aaa                 Configure AAA
  arp                 [no] remove an entry from the ARP cache
  boot                Configure boot variables
  callhome            Enter the callhome configuration mode
  clock               Configure time-of-day clock
  end                 Exit to Exec mode
  exit                Exit from the EXEC
  fcalias             Fcalias configuration commands
  fcanalyzer          Configure cisco fabric analyzer
  fcc                 Configure FC Congestion Control
  fcdomain            Enter the fcdomain configuration mode
  fcdroplatency       Configure switch or network latency
  fcflow              Configure  fcflow
  fcinterop           Interop commands.
  fcns                Name server configuration
  fcroute             Configure FC routes
  fcs                 Configure Fabric Config Server
  fctimer             Configure fibre channel timers
  fspf                Configure fspf
  in-order-guarantee  Set in-order delivery guarantee
  interface           Select an interface to configure
  ip                  Configure IP features
  line                Configure a terminal line
  logging             Modify message logging facilities
  no                  Negate a command or set its defaults
  ntp                 NTP Configuration
  power               Configure power supply
  poweroff            Poweroff a module in the switch
  qos                 Configure priority of FC control frames
  radius-server       Configure RADIUS related parameters
  role                Configure roles
  snmp-server         Configure snmp server
  span                Enter SPAN configuration mode
  ssh                 Configure SSH parameters
  switchname          Configure system's network name
  system              System config command
  telnet              Enable telnet
  trunk               Configure Switch wide trunk protocol
  username            Configure user information.
  vsan                Enter the vsan configuration mode
  wwn                 Set secondary base MAC addr and range for additional WWNs
  zone                Zone configuration commands
  zoneset             Zoneset configuration commands
Configuration mode, also known as terminal configuration mode, has several submodes. Each of these submodes places you deeper in the prompt hierarchy. When you type exit, the switch backs out one level and returns you to the previous level. When you type end, the switch backs out to the user EXEC level. You can also type Ctrl-Z in configuration mode as an alternative to typing end.

Note When in configuration mode, you can enter an EXEC mode command followed by a Ctrl-z. In response,
the switch returns to the EXEC level. The entered command is then executed at the EXEC level
The following example executes the copy running-config startup-config command from configuration mode, if you press Ctrl-z, instead of Enter.
switch(config)# copy run start
[########################################] 100%
switch#

Table 2-2 displays the commonly used configuration submodes.

Table 2-2 Submodes Within the Configuration Mode

Submode Name

From Configuration Mode Enter

Submode Prompt

Configured Information

Call Home

callhome

switch(config-callhome)#

Contact, destination, and e-mail

FCS Registration

fcs register

switch(config-fcs-register)#

FCS attribute registration

From FCS registration submode:

platform name vsan number

switch(config-fcs-register-att rib)#

Platform name and VSAN ID association

Fibre Channel alias

fcalias name name vsannumber

switch(config-fcalias)#

Alias member

FSPF

fspf config vsannumber

switch(config-(fspf-config))#

Static SPF computation, hold time, and autonomous region

Interface configuration

interface type slot/port

switch(config-if)#

Channel groups, Fibre Channel domains, FSPF parameters, switch port trunk and beacon information, and IP address

From the VSAN or mgmt0 (management) interface configuration submode:

vrrp number

switch(config-if-vrrp)#

Virtual router (see "Creating or Removing a Virtual Router" section)

Line console

line console

switch(config-console)#

Primary terminal console

VTY

line vty

switch(config-line)#

Virtual terminal line

Role

role name

switch(config-role)#

Rule

SPAN

span session number

switch(config-span)#

SPAN source, destination, and suspend session information

VSAN database

vsan database

switch(config-vsan-db)#

VSAN database

Zone

zone name string vsannumber

switch(config-zone)#

Zone member

Zone set

zoneset name vsannumber

switch(config-zoneset)#

Zone set member

Navigating Through CLI Commands

To redisplay a command you previously entered, press the Up Arrow key. You can continue to press the Up Arrow key to see more previously issued commands. Similarly, you can press the Down Arrow, Right Arrow, Left Arrow, and Delete keys to navigate through the command history and to modify an existing command string.

Getting Help

In any command mode, you can get a list of available commands by entering a question mark (?).
switch# ?
To obtain a list of commands that begin with a particular character sequence, type in those characters followed immediately by the question mark (?). Do not include a space.
switch# co?
configure copy
To list keywords or arguments, enter a question mark in place of a keyword or argument. Include a space before the question mark. This form of help is called command syntax help, because it reminds you which keywords or arguments are applicable based on the commands, keywords, and arguments you have already entered.
switch# config ?
 terminal Configure the system from the terminal
Tip If you are having trouble entering a command, check the system prompt and enter the question mark (?) for a list of available commands. You might be in the wrong command mode or using incorrect syntax.

Command Completion

In any command mode, you can begin a particular command sequence and immediately press the Tab key to complete the rest of the command.
switch (config)# ro<Tab> 
switch (config)# role <Tab> 
switch (config)# role name 
This form of help is called command completion, because it completes a word for you. If several options are available for the typed letters, all options that match those letters are presented:
switch(config)# fc<Tab>
fcalias        fcdomain       fcs 
fcanalyzer     fcdroplatency  fcns           fctimer        
fcc            fcinterop      fcroute        
switch(config)# fcd<Tab>
fcdomain       fcdroplatency  
switch(config)# fcdo<Tab>
switch(config)# fcdomain 
Using the no and Default Forms of Commands

You can issue the no form of any command to perform the following actions:

•Undo a wrongly issued command.

If you issue the zone member command, you can undo the results:
switch(config)# zone name test vsan 1
switch(config-zone)# member pwwn 12:12:12:12:12:12:12:12
switch(config-zone)# no member pwwn 12:12:12:12:12:12:12:12
WARNING: Zone is empty. Deleting zone test. Exit the submode.
switch(config-zone)# 
•Delete a created facility

If you want to delete a zone that you created:
switch(config)# zone name test vsan 1
switch(config-zone)# exit
switch(config)# no zone name test vsan 1
switch(config)# 
You cannot delete a zone facility called test while residing in it. You must first exit the zone submode and return to configuration mode.

Entering CLI Commands

You can configure the software in one of two ways:

•You can create the configuration for the switch interactively, working at the CLI prompt.

•You can create an ASCII file containing a switch configuration and then load this file on the required system. You can then use the CLI to edit and activate the file (see the "Working with Configuration Files" section).

Viewing a Configuration

You can view the ASCII form of the configuration file when required. To view the current configuration tree from the EXEC prompt, issue the show running-config command. If the running configuration is different from the startup configuration, issue the show startup-config command to view the ASCII version of the current startup configuration that was used to boot the switch.

You can gather specific information on the entire switch configuration by issuing the relevant show commands. Available show commands for each feature are listed at the end of each chapter. Examples 2-1 to 2-3 display a few show command examples.

Example 2-1 Displays the Specified Interface
switch# show interface fc1/1
fc1/1 is up
    Hardware is Fibre Channel, 20:01:ac:16:5e:4a:00:00
    vsan is 1
    Port mode is E
    Speed is 1 Gbps
    Beacon is turned off
    FCID is 0x0b0100
      0 frames input, 0 bytes, 0 discards
      0 runts, 0 jabber, 0 too long, 0 too short
      0 input errors, 0 CRC, 0 invalid transmission words
      0 address id, 0 delimiter
      0 EOF abort, 0 fragmented, 0 unknown class
      0 frames output, 0 bytes, 0 discards
      Received 0 OLS, 0 LRR, 0 NOS, 0 loop inits
      Transmitted 0 OLS, 0 LRR, 0 NOS, 0 loop inits
Example 2-2 Displays the Software and Hardware Version
switch# show version
Cisco Storage Area Networking Operating System (SAN-OS) Software
TAC support: http://www.cisco.com/tac
Copyright (c) 2002 by Cisco Systems, Inc. All rights reserved.
The copyright for certain works contained herein are owned by
Andiamo Systems, Inc. and/or other third parties and are used and
distributed under license.
Software
  BIOS:      version 1.0.3
  loader:    version 1.0(2a)
  kickstart: version 1.0(2a)
  system:    version 1.0(2a)
  BIOS compile time:       11/18/02
  kickstart image file is: bootflash:/kick-1.0.2a
  kickstart compile time:  12/4/2002 21:00:00
  system image file is:    bootflash:/system-1.0.2a
  system compile time:     12/4/2002 21:00:00
Hardware
  RAM 1027636 kB
  bootflash: 503808 blocks (block size 512b)
  slot0:          0 blocks (block size 512b)
  switch-180 uptime is 0 days 3 hours 36 minute(s) 10 second(s)
  Last reset at 595383 usecs after Wed Jan  9 18:39:40 1980
    Reason: Reset triggered due to Switchover Request by User
    System version: 1.0(2a)
Example 2-3 Displays the Running Configuration
switch# show running-config 
Building Configuration ...
 interface fc1/1
 interface fc1/2
 interface fc1/3
 interface fc1/4
 interface mgmt0
ip address 172.22.95.112 255.255.255.0
no shutdown
vsan database
boot system bootflash:system-237; sup-1
boot kickstart bootflash:boot-237 sup-1
callhome
ip default-gateway 172.22.95.1
switchname switch
trunk protocol enable
username admin password 5 /AFDAMD4B2xK2  role network-admin
Using the File System

The file system on a switch in the supervisor module provides a number of useful commands to help you manage software image files and configuration files.

You have access to two directories within the internal bootflash: file system. They are volatile: (temporary storage, also the default) and bootflash: (permanent storage). Files in temporary storage (volatile:) are erased when the switch reboots.

Setting the Current Directory

The cd command changes the current directory level to a specified directory level. CLI defaults to the volatile: files system. This command expects a directory name input.

Tip Any file saved in the volatile: file system will be erased when the switch reboots.

The syntax for this command is cd directory name

This example changes the current directory to the mystorage directory that resides in the slot0 directory:
switch# cd slot0:mystorage 
This example changes the current directory to the mystorage directory that resides in the current directory.
switch# cd mystorage
If the current directory is slot0:mydir, this command changes the current directory to 
slot0:mydir/mystorage.
Displaying the Current Directory

The pwd command displays the current directory location. This example changes the directory and displays the current directory.
switch# cd bootflash:
switch# pwd
bootflash:
Listing the Files in a Directory

The dir command displays the contents of the current directory or the specified directory. The syntax for this command is dir directory or file name
This example shows how to list the files on the default volatile: file system:
switch# dir 
           Usage for volatile: filesystem
                          0 bytes total used
                   20971520 bytes free
                   20971520 bytes available
Creating a New Directory

The mkdir command creates a directory at the current directory level or at a specified directory level.

The syntax for this command is mkdir directory name
This example creates a directory called test in the slot0 directory.
switch# mkdir slot0:test 
This example creates a directory called test at the current directory level.
switch# mkdir test
If the current directory is slot0:mydir, this command creates a directory called slot0:mydir/test.
Deleting an Existing Directory

The rmdir command deletes an existing directory at the current directory level or at a specified directory level. The directory must be empty to be deleted.

The syntax for this command is rmdir directory name
This example deletes the directory called test in the slot0 directory.
switch# rmdir slot0:test 
This example deletes the directory called test at the current directory level.
switch# rmdir test
If the current directory is slot0:mydir, this command deletes the slot0:mydir/test directory.
Moving Files

The move command removes a file from the source directory and places it in the destination directory. If a file with the same name already exists in the destination directory, that file is overwritten by the moved file.

This example moves the file called samplefile from the slot0 directory to the mystorage directory.
switch# move slot0:samplefile slot0:mystorage/samplefile
This example moves a file from the current directory level.
switch# move samplefile mystorage/samplefile
If the current directory is slot0:mydir, this command moves slot0:mydir/samplefile to 
slot0:mydir/mystorage/samplefile.
Copying Files

The copy command copies a file.

This example copies the file called samplefile from the slot0 directory to the mystorage directory.
switch# copy slot0:samplefile slot0:mystorage/samplefile
This example copies a file from the current directory level.
switch# copy samplefile mystorage/samplefile
If the current directory is slot0:mydir, this command copies slot0:mydir/samplefile to 
slot0:mydir/mystorage/samplefile.
You can also use the copy command to upload and download files from the slot0: or bootflash: file 
system to or from a FTP, TFTP, SFTP, or SCP server (see the "Copying Files" section).
Displaying File Contents

The show file command displays the contents of a specified file in the file system.

The syntax for this command is show file file name

This example displays the contents of the test file that resides in the slot0 directory.
switch# show file slot0:test
config t
Int fc1/1
no shut
end
show int
This example displays the contents of a file residing in the current directory.

switch# show file myfile

Displaying Disk Usage

The show flash command displays the disk usage of various devices.
switch# show flash
Filesystem           1k-blocks      Used Available Use% Mounted on
none                    409600     37024    372576  10% /system
none                    204800     39816    164984  20% /var
none                    102400      2084    100316   3% /dev/shm
none                     20480         0     20480   0% /volatile
/dev/hd-cfg0             19976      1699     17246   9% /mnt/cfg/0
/dev/hd-cfg1             19976      1699     17246   9% /mnt/cfg/1
/dev/hd-pss              20005      1473     17499   8% /mnt/pss
/dev/hd-bootflash       422162    172576    227788  44% /bootflash
Displaying Users

The show users command displays all users currently accessing the switch.
switch# show users 
admin    pts/7        Jan 12 20:56 (10.77.202.149)
admin    pts/9        Jan 12 23:29 (modena.cisco.com)
admin    pts/10       Jan 13 03:05 (dhcp-171-71-58-120.cisco.com)
admin    pts/11       Jan 13 01:53 (dhcp-171-71-49-49.cisco.com)
Executing Commands Specified in a Script

The run-script command executes the commands specified in a file.

Note You cannot create the script files at the switch prompt. You can create the script file on an external machine and copy it the bootflash: directory. This section assumes that the scrip file resides in the bootflash: directory.

The syntax for this command is run-script file name

This example executes the CLI commands specified in the testfile that resides in the slot0 directory.
switch# show file slot0:testfile
conf t
interface fc 1/1
no shutdown
end
sh interface fc1/1
This file output is in response to the run-script command:
switch# run-script slot0:testfile
'conf t'
Enter configuration commands, one per line. End with CNTL/Z.
'interface fc 1/1'
'no shutdown'
'end'
'sh interface fc1/1'
fc1/1 is down (Fcot not present)
    Hardware is Fibre Channel
    Port WWN is 20:01:00:05:30:00:48:9e
    Admin port mode is auto, trunk mode is on
    vsan is 1
    Beacon is turned off
    Counter Values (current):
      0 frames input, 0 bytes, 0 discards
      0 runts, 0 jabber, 0 too long, 0 too short
      0 input errors, 0 CRC, 0 invalid transmission words
      0 address id, 0 delimiter
      0 EOF abort, 0 fragmented, 0 unknown class
      0 frames output, 0 bytes, 0 discards
      Received 0 OLS, 0 LRR, 0 NOS, 0 loop inits
      Transmitted 0 OLS, 0 LRR, 0 NOS, 0 loop inits
    Counter Values (5 minute averages):
      0 frames input, 0 bytes, 0 discards
      0 runts, 0 jabber, 0 too long, 0 too short
      0 input errors, 0 CRC, 0 invalid transmission words
      0 address id, 0 delimiter
      0 EOF abort, 0 fragmented, 0 unknown class
      0 frames output, 0 bytes, 0 discards
      Received 0 OLS, 0 LRR, 0 NOS, 0 loop inits
	  Transmitted 0 OLS, 0 LRR, 0 NOS, 0 loop inits
To use this command, be sure to create the file and specify commands in the required order.

Setting the Delay Time

The sleep command delays an action by a specified number of seconds.

The syntax for this command is sleep <seconds>
switch# sleep 30
You will see the switch prompt return after 30 seconds.

This command is useful within scripts. For example, if you create a script called lashtest-script:
switch# show file slot0:test-script
discover scsi-target remote
sleep 10
show scsi-target disk
switch# run-script slot0:test-script
When you execute the slot0:test-script, the switch software executes the discover scsi-target remote command, and then waits for 10 seconds before executing the show scsi-target disk command.

Displaying the Last Line in a File

The tail command displays the last lines (tail end) of a specified file.

The syntax for this command is tail <file name> [<number of lines>]
switch# tail mylog 10
You see the last 10 lines of the mylog file.

If you specify a long file and would like to exit in the middle, enter Ctrl-c to exit this command.

Setting the Switch's Shell Timeout

Use the exec-timeout command in configuration mode to configure the lifetime of a single terminal session. When the time limit configured by this command is exceeded, the shell exits and closes that session.

The syntax for this command from is exec-timeout minutes

The default is 30 minutes. You can configure different timeout values for a console or a virtual terminal line (VTY) session.

•From the console:
switch(config)# line console
switch(config-console)# exec-timeout 60
Specifies the current console shell timeout to be 60 minutes.

•From a VTY session (Telnet or SSH):
switch(config)# line vty
switch(config-line)# exec-timeout 60
Specifies the current console shell timeout to be 60 minutes.

Setting the Switch's Terminal Type

Use the terminal terminal-type command in EXEC mode to specify the terminal type for a switch:

The syntax for this command is terminal terminal-type terminal-type
switch# terminal terminal-type vt100
Specifies the terminal type (for example vt100 or xterm). Any string is accepted for the terminal-type argument. If a Telnet or SSH session specifies an unknown terminal type, the switch uses the vt100 terminal by default.

Setting the Switch's Terminal Length

To set the terminal screen length for the current session, use the terminal length command in EXEC mode:

The syntax for this command is terminal length lines
switch# terminal length 20 
Sets the screen length for the current session to 20 lines for the current terminal session. The default is 24 lines.

This command is specific to only the console port. Telnet and SSH sessions set the length automatically.

Setting the Switch's Terminal Width

To set the terminal screen width for the current session, use the terminal width command in EXEC mode:

The syntax for this command is terminal width columns
switch# terminal width 86 
Sets the screen length for the current session to 86 columns for the current terminal session. The default is 80 columns.

This command is specific to only the console port. Telnet and SSH sessions set the width automatically.

Displaying Terminal Settings

The show terminal command displays the terminal settings for the current session:
switch# show terminal 
TTY: Type: "vt100"
Length: 24 lines, Width: 80 columns
Session Timeout: 525600 minutes
Saving Command Output to a File

You can force all screen output to go to a file by appending > filename to any command. For example, enter show interface > samplefile at the EXEC mode switch prompt to save the interface configuration to samplefile—a file created at the same directory level. At the EXEC mode switch prompt, issue a dir command to view all files in this directory, including the recently saved samplefile.See "Initial Configuration," for information on saving and copying configuration files, and "Software Images," for information on saving and copying software images.

Note Redirection is allowed only if the current directory is on the volatile: (default) or slot0: file systems. Redirection is not allowed if the current directory is on the bootflash: file system. The current directory can be viewed using the pwd command and changed using the cd command.

Sending Messages to Users

The send command sends a message to all active CLI users currently using the switch. This message is restricted to 80 alphanumeric characters with spaces.

This example sends a warning message to all active users about the switch being shut down.
switch# send Shutting down the system in 2 minutes. Please log off.
Broadcast Message from admin@excal-112
        (/dev/pts/3) at 16:50 ... 
Shutting down the system in 2 minutes. Please log off.
switch> 
Using ping

The ping command verifies the connectivity of a remote host or server by sending echo messages.

The syntax for this command is ping <host or ip address>
switch# ping 198.133.219.25
PING 198.133.219.25 (198.133.219.25) 56(84) bytes of data.
64 bytes from 198.133.219.25: icmp_seq=1 ttl=245 time=0.856 ms
64 bytes from 198.133.219.25: icmp_seq=2 ttl=245 time=1.02 ms
--- 198.133.219.25 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.856/0.941/1.027/0.090 ms
To abnormally terminate a ping session, type the Ctrl-C escape sequence

Using traceroute

The traceroute command prints the routes taken by a specified host or IP address.

The syntax for this command is traceroute <host or ip address>
switch# traceroute www.cisco.com
Tracing route to www.cisco.com [198.133.219.25] 30 hops max, 38 byte packets
  1 		bras3-l0.pltnca.sbcglobal.net [151.164.184.79] 30 ms    30 ms    20 ms 
  2 		dist2-vlan50.pltn13.pbi.net [64.164.97.67] 20 ms    20 ms    30 ms 
  3 		bb2-g1-1.pltn13.pbi.net [67.116.251.194] 20 ms    20 ms    20 ms
  4 		bb1-p12-0.pltn13.pbi.net [151.164.40.17] 20 ms    21 ms    20 ms
  5 		bb2-p13-0.sntc01.pbi.net [151.164.191.65] 20 ms    20 ms    30 ms
  6 		ex1-p3-0.eqsjca.sbcglobal.net [64.161.1.54] 20 ms    20 ms    30 ms 
  7 		sl-st20-sj-0-0.sprintlink.net [144.223.242.81] 20 ms    20 ms    30 ms 
  8 		sl-bb25-sj-10-0.sprintlink.net [144.232.20.62] 20 ms    30 ms    20 ms 
  9 		sl-gw11-sj-10-0.sprintlink.net [144.232.3.134] 70 ms    30 ms    30 ms
 10 		sl-ciscopsn2-11-0-0.sprintlink.net [144.228.44.14] 20 ms    30 ms    20 ms
 11 		sjce-dmzbb-gw1.cisco.com [128.107.239.89] 20 ms    30 ms    30 ms 
 12 		sjck-dmzdc-gw1.cisco.com [128.107.224.69] 20 ms    30 ms    20 ms 
 13		www.cisco.com (198.133.219.25)  2.496 ms *  2.135 ms
To abnormally terminate a traceroute session, type the Ctrl-C escape sequence

Saving a Configuration

To save the configuration, enter the copy running-config startup-config command from the EXEC mode prompt to save the new configuration into nonvolatile storage. Once this command is issued, the running and the startup copies of the configuration are identical.

See the "Copying Files" section.

Clearing a Configuration

To completely clear a configuration, enter the write erase command from the EXEC mode prompt. Once this command is issued, the existing configuration is cleared and the switch reverts to factory defaults.

Role-Based CLI

By default, two roles exist in all switches:

•Network operator—Has permission to view the configuration.

•Network administrator—Has permission to execute all commands and to set up to 64 permission levels based on user roles and groups (see "Configuring System Security and AAA Services").

When you execute a command, perform command completion, or obtain context sensitive help, the switch software allows the operation to progress if you have the correct permission as specified in the description of the command.

Using Valid Formats and Ranges

Some commands require a MAC address, IP address, or IDs that must be designated in a standard format or given a range. See Table 2-3.

Table 2-3 Valid Formats and Ranges

Address

Description

Valid Format Example

Range

MAC address

6 bytes in hexadecimal format separated by colons (not case-sensitive)

00:00:0c:24:d2:Fe

—

IP address

32 bytes, written as 4 octets separated by periods (dotted decimal format) that are made up of a network section, an optional netmask section, and a host section.

126.2.54.1

—

VSAN

Integer that specifies the VSAN.

7

1 to 4093

Port WWN
(pWWN)

Eight hexadecimal numbers separated by colons (not case-sensitive).

12:34:56:78:9A:BC:dE:F1

—

Node WWN
(nWWN)

Eight hexadecimal numbers separated by colons (not case-sensitive).

12:34:56:78:9A:BC:dE:F1

—

LUN

8 bytes in hexadecimal format separated by colons. A minimum of two hex characters are acceptable. The valid format is hhhh[:hhhh[:hhhh[:hhhh]]]

64

(100d = 64h)

—

FC ID

Six character hexadecimal value prepended by 0x.

0xabc123

—

Domain ID

Integer that specifies the domain.

7

1 to 239

Timers

Integer that specifies timers in milliseconds for latency, FC time out values (TOV).

100

0 to 2147483647

Switching module

Slot in which the applicable switching module resides.

1

1 to 15

Switch priority

Integer specifying switch priority.

5

1 to 254

Channel group

Integer that specifies a PortChannel group addition.

1

1 to 100

Fabric Shortest Path First (FSPF)

Integer that specifies the hold time (in milliseconds) before making FSPF computations.

1000

0 to 65535

Fabric Analyzer

The allowed range for the frame size limit in bytes.

64

64 to 65536

Fabric Analyzer captures

An example of 10 frames, limits the number of frames captured to 10.

10

0 to 2147483647