Cisco Cisco MDS 9020 - Fabric Switch User manual

CHAPTER
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Cisco MDS 9020 Fabric Switch Configuration Guide and Command Reference
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3
Initial Configuration
This chapter describes how to initially configure switches so they can be accessed by other devices. This
chapter includes the following sections:
•Starting a Cisco MDS 9020 Fabric Switch, page 3-2
•Initial Setup Routine, page 3-2
•Accessing the Switch, page 3-9
•Assigning a Switch Name, page 3-10
•Where Do You Go Next?, page 3-10
•Verifying the Status of the Switch, page 3-10
•Configuring Date and Time, page 3-11
•Management Interface Configuration, page 3-13
•Default Gateway Configuration, page 3-15
•Telnet Server Connection, page 3-16
•Working with Configuration Files, page 3-16
•Deleting Files, page 3-21
Note No configuration is needed on the Cisco MDS 9020 Fabric Switch for interoperability with Brocade and
McData switches. For information on configuring these third party switches refer to the Cisco MDS
9000 Family Switch-to-Switch Interoperability Configuration Guide.

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Cisco MDS 9020 Fabric Switch Configuration Guide and Command Reference OL-6988-02
Chapter 3 Initial Configuration
Starting a Cisco MDS 9020 Fabric Switch
Starting a Cisco MDS 9020 Fabric Switch
The following procedure is a review of the tasks you should have completed during hardware
installation, including starting up the switch. These tasks must be completed before you can configure
the switch.
Before you can configure a switch, follow these steps:
Step 1 Verify the following physical connections for the new Cisco MDS 9020 Fabric Switch:
•The console port is physically connected to a computer terminal (or terminal server).
•The management 10/100 Ethernet port (mgmt0) is connected to an external hub, switch, or router.
Refer to the Cisco MDS 9020 Fabric Switch Hardware Installation Guide for more information.
Tip Save the host ID information for future use (for example, to enable licensed features). The host
ID information is provided in the Proof of Purchase document that accompanies the switch.
Step 2 Verify that the default console port parameters are identical to those of the computer terminal (or
terminal server) attached to the switch console port:
•9600 baud
•8 data bits
•1 stop bit
•No parity
Step 3 Power on the switch. The switch boots automatically and the switch# prompt appears in your terminal
window.
Initial Setup Routine
The first time that you access a Cisco MDS 9020 Fabric Switch, it runs a setup program that prompts
you for the IP address and other configuration information necessary for the switch to communicate over
the Ethernet interface. This information is required to configure and manage the switch.
Note The IP address can be configured from the CLI only. When you power up the switch for the first time,
assign the IP address. After you perform this step, the Cisco Fabric Manager can reach the switch
through the Ethernet port.

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Chapter 3 Initial Configuration Initial Setup Routine
Preparing to Configure the Switch
Before you configure a Cisco MDS 9020 Fabric Switch for the first time, you need the following
information:
•Administrator password, including:
– Creating a password for the administrator (required).
– Creating an additional login account and password (optional).
•IP address for the switch management interface. The management interface is an out-of-band
Ethernet interface.
•Subnet mask for the switch's management interface (optional).
•IP addresses, including:
– Destination prefix, destination prefix subnet mask, and next hop IP address, if you want to
enable IP routing. Also, provide the IP address of the default network (optional).
– Otherwise, provide an IP address of the default gateway (optional).
•SSH service on the switch—To enable this optional service, select the SSH key (rsa) and the number
of key bits (768 to 2048).
•Default domain name (optional).
•NTP server IP address (optional).
•SNMP community string (optional).
•Switch name—This is your switch prompt (optional).
Note Be sure to configure the IP route, the IP default network address, and the IP default gateway address to
enable SNMP access. If IP routing is enabled, the switch uses the IP route and the default network IP
address. If IP routing is disabled, the switch uses the default gateway IP address.
Default Login
The Cisco MDS 9020 Fabric Switch has the network administrator as a default user (admin). You cannot
change the default user at any time. (See the “Role-Based Authorization” section on page 9-5.)
You must explicitly configure a strong password for the Cisco MDS 9020 Fabric Switch. If a password
is trivial (short, easy-to-decipher), your password configuration is rejected. Be sure to configure a strong
password. (See “Configuring User Accounts” section on page 9-6.) If you configure and subsequently
forget this new password, you have the option to recover this password. (See the “Recovering the
Administrator Password” section on page 9-10.)

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Chapter 3 Initial Configuration
Initial Setup Routine
Setup Options
The setup scenario differs based on the subnet to which you are adding the new switch. You must
configure a Cisco MDS 9020 Fabric Switch with an IP address to enable management connections from
outside of the switch. Figure 3-1 shows a switch that is managed out-of-band over a connection to the
network through an Ethernet port.
Figure 3-1 Management Access to Switches
CLI
GUI DNS server
IP
network
Router
IP address
172.16.1.1
Telnet or
SSH
SNMP
Management LAN
(Ethernet connection)
Switch 2
mgmt 0
(IP address:
172.16.1.2)
Console
connection Out of band
management
subnetwork
79936

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Chapter 3 Initial Configuration Initial Setup Routine
Assigning Setup Information
This section describes how to initially configure the switch for both out-of-band and in-band
management.
Note Press Ctrl-C at any prompt to skip the remaining configuration options and proceed with what is
configured until that point. Entering the new password for the administrator is a requirement and cannot
be skipped.
Tip If you do not wish to answer a previously configured question, or if you wish to skip answers to any
questions, press Enter. If a default answer is not available (for example, switch name), the switch uses
previously configured value and skips to the next question.
Configuring Out-of-Band Management
To configure the switch for first time out-of-band access, follow these steps:
Step 1 Power on the switch. The Cisco MDS 9020 Fabric Switch boots automatically.
Step 2 Enter the password for the administrator.
Enter the password for admin: admin123
Step 3 Enter yes to enter the setup mode.
---- Basic System Configuration Dialog ----
This setup utility will guide you through the basic configuration of
the system. Setup configures only enough connectivity for management
of the system.
*Note: setup is mainly used for configuring the system initially,
when no configuration is present. So setup always assumes system
defaults and not the current system configuration values.
Press Enter if you want to skip any dialog. Use ctrl-c at anytime
to skip all remaining dialogs.
Would you like to enter the basic configuration dialog (yes/no): yes
The setup utility guides you through the basic configuration process. Press Ctrl-C at any prompt to end
the configuration process.

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Chapter 3 Initial Configuration
Initial Setup Routine
Step 4 Enter yes (no is the default) to create additional accounts.
Note Only the admin user name can create or modify user accounts.
Create another login account (yes/no) [n]: yes
While configuring your initial setup, you can create an additional user account (in the network-admin
role) besides the administrator’s account. See the “Role-Based Authorization” section on page 9-5 for
information on default roles and permissions.
a. Enter the user login ID.
Enter the user login ID: user_name
b. Enter the user password.
Enter the password for user_name: user-password
Confirm the password for user_name: user-password
c. Enter the user role.
Enter the user role [network-operator]:network_admin
Step 5 Enter yes (no is the default) to configure the read-only or read-write SNMP community string.
Configure read-only SNMP community string (yes/no) [n]: yes
a. Enter the SNMP community string.
SNMP community string: snmp_community
Step 6 Enter a name for the switch.
Note The switch name is limited to 32 alphanumeric characters.
Enter the switch name: switch_name
Step 7 Enter yes (yes is the default) to configure out-of-band management.
Continue with Out-of-band (mgmt0) management configuration? [yes/no]: yes
a. Enter the mgmt0 IP address.
Mgmt0 IP address: ip_address
b. Enter the mgmt0 subnet mask.
Mgmt0 IP netmask: subnet_mask
Step 8 Enter yes (yes is the default) to configure the default gateway (recommended).
Configure the default-gateway: (yes/no) [y]: yes
a. Enter the default gateway IP address.
IP address of the default-gateway: default_gateway
Step 9 Enter yes (yes is the default) to enable Telnet service.
Enable the telnet service? (yes/no) [y]: yes

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Chapter 3 Initial Configuration Initial Setup Routine
Step 10 Enter no (no is the default) to disable the SSH service.
Enabled SSH service? (yes/no) [n]: no
Step 11 Enter no (no is the default) to not configure the NTP server.
Configure NTP server? (yes/no) [n]: no
Step 12 Enter noshut (shut is the default) to configure the default switchport interface to the noshut state.
Configure default switchport interface state (shut/noshut) [shut]: noshut
Step 13 Enter deny (deny is the default) to deny a default zone policy configuration.
Configure default zone policy (permit/deny) [deny]: deny
Deny prevents traffic flow to all members of the default zone.
Step 14 You see the new configuration. Review and edit the configuration that you have just entered. Enter no
(no is the default) if you are satisfied with the configuration.
The following configuration will be applied:
username admin password admin_pass role network-admin
switchname switch
interface mgmt0
ip address ip_address subnet_mask
ip default-gateway 10.0.0.254
telnet server enable
no ssh server enable
no system default switchport shutdown
no zone default-zone permit
Would you like to edit the configuration? (yes/no) [n]: no
Step 15 Enter yes (yes is default) to use and save this configuration:
Use this configuration and save it? (yes/no) [y]: yes
Caution If you do not save the configuration at this point, none of your changes are updated the next
time the switch is rebooted. Type yes to save the new configuration and ensure that the system
images are also automatically configured. (See Chapter 4, “Software Images”.)

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Chapter 3 Initial Configuration
Initial Setup Routine
Using the setup Command
To make changes to the initial configuration at a later time, you can enter the setup command in EXEC
mode.
Note The setup utility is mainly used for the initial configuration when no configuration is present. The setup
utility assumes system defaults and not the current system configuration values.
switch# setup
---- Basic System Configuration Dialog ----
This setup utility will guide you through the basic configuration of
the system. Setup configures only enough connectivity for management
of the system.
*Note: setup always assumes a predefined defaults irrespective
of the current system configuration when invoked from CLI.
Press Enter in case you want to skip any dialog. Use ctrl-c at anytime
to skip away remaining dialogs.
Would you like to enter the basic configuration dialog (yes/no): yes
The setup utility guides you through the basic configuration process.

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Chapter 3 Initial Configuration Accessing the Switch
Accessing the Switch
After initial configuration, you can access the switch in the following ways:
•Serial console access—You can use a serial port connection to access the CLI.
•Out-of-band (10/100BASE-T Ethernet) access—You can use Telnet or SSH to access a Cisco MDS
9020 Fabric Switch or use SNMP to connect to Cisco Fabric Manager.
Note To use Cisco Fabric Manager, refer to the Cisco MDS 9000 Family Fabric Manager
Configuration Guide.
Figure 3-2 illustrates serial console access and out-of-band access.
Figure 3-2 Switch Access Options
CLI
GUI DNS server
IP
network
Router
IP address
172.16.1.1
Telnet or
SSH
SNMP
Management LAN
(Ethernet connection)
Switch 2
mgmt 0
(IP address:
172.16.1.2)
Console
connection Out of band
management
subnetwork
79936

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Chapter 3 Initial Configuration
Assigning a Switch Name
Assigning a Switch Name
Each switch in the fabric requires a unique name. You can assign names to easily identify the switch by
its physical location, its SAN association, or the organization to which it is deployed. The assigned name
is displayed in the command-line prompt. The switch name is limited to 32 alphanumeric characters.
Note This guide refers to the Cisco MDS 9020 Fabric Switch as switch, and it uses the switch# prompt.
To change the name of the switch, perform this task:
Where Do You Go Next?
After reviewing the default configuration, you can change it or perform other configuration or
management tasks. The initial setup can be performed at the CLI only. However, you can continue to
configure other software features or access the switch after initial configuration by using either the CLI
or the Device Manager and Fabric Manager applications.
To use the Cisco Fabric Manager, refer to the Cisco MDS 9000 Family Fabric Manager Configuration
Guide.
Verifying the Status of the Switch
Before you begin configuring the switch, you need to ensure that the switch is functioning as designed.
To verify the status of a switch at any time, enter the show module command in EXEC mode. A sample
output of the show module command follows:
switch# show module
Mod Ports Module-Type Model Status
--- ----- ------------------------------- ------------------ ------------
1 20 1/2/4 Gbps FC/Supervisor DS-C9020-20K9 active *
Mod Sw Hw World-Wide-Name (WWN)
--- ------------ ------ --------------------------------------------------
1 2.1(2) ------- 10:00:00:0d:ec:19:cb:01
Mod MAC-Address Serial-Num
--- -------------------------------------- ----------
1 00-c0-dd-03-d4-e4 0426a07855
* this terminal session
If the status is OK or active, you can continue with your configuration.
Command Purpose
Step 1 switch# config t Enters configuration mode.
Step 2 switch(config)# switchname myswitch1
myswitch1(config)# Changes the switch name prompt as specified.
Step 3 myswitch1(config)# no switchname
switch(config)# Reverts the switch name prompt to its default (switch#).