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OJXE_C4_Initial_Configuration_9.b-R

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Operating Juniper Networks Switches in the Enterprise

Chapter 4: Installation and Initial

Configuration

After successfully completing this chapter, you will be able to:

•Install Juniper Networks EX-series switches•Save and restore a rescue configuration

•Return an EX-series switch to the factory-default state•Describe the initial configuration options

•Perform initial configuration using the console’s EZsetup feature

•Perform initial configuration using the J-Web EZsetup feature

•Perform initial configuration using the JUNOS CLI

Installation Guidelines

Rescue and Factory-Default ConfigurationsInitial Configuration ChecklistInitial Configuration Options

Follow documented safety guidelines

Use the hardware installation training resources:

•Technical publications: http://www.juniper.net/techpubs/

JUNOS software is a multitasking environment

•A graceful shutdown of the operating system ensures file system integrity

•Use the J-Web Maintain > Rebootpage or the request system haltCLI command to gracefully halt JUNOS software•Power is maintained to the system; reboot with console activity

Rebooting the system with the LCD menu:

•System reboot option under Maintenance mode

Automatic power-on feature

Installation Guidelines

Rescue and Factory-Default ConfigurationsInitial Configuration ChecklistInitial Configuration Options

A rescue configuration is designed to restore basic connectivity in the event of configuration problems

•The user defines the contents

•Include a root password!

•By default, there is no rescue configuration

•Save rescue configuration using J-Web or the CLI•Retrieve with rollback rescueCLI command

•View with file show/config/rescue.conf.gzCLI command

Two methods of saving rescue configuration:

•request system configuration rescue saveCLI command

•J-Web Maintain > Config Management > Rescueoption

Retrieve the rescue configuration by using the rollback rescueCLI configuration-mode command

•Remember to commit!

[edit]

user@switch# rollback rescueload complete[edit]

user@switch# commitcommit complete[edit]

user@switch#

Activates rescue configuration

Enables family ethernet-switchingfor all ports

Enables default system loggingEnables LLDP and RSTP

Enables PoE on all supported ports

Loads one-time factory-settingsoption

•Returns Virtual Chassis system Member ID to 0•Resets J-Web EZsetup feature

There might be times when you want to return to a factory configuration

Use the load factory-defaultconfiguration command and set a root password:

[edit]

user@switch# load factory-default

warning: activating factory configuration

[edit]

user@switch# set system root-authentication plain-text-passwordNew password:

Retype new password:[edit]

user@switch# commitcommit complete

Activates the factory-default

configuration

Navigate the LCD menu by pressing the menubutton and choose Restore to Factory Default

Installation Guidelines

Rescue and Factory-Default ConfigurationsInitial Configuration ChecklistInitial Configuration Options

Have the following information ready when performing the initial setup through the CLI or the EZsetup option:

•Hostname (optional)•Root password

•System time (optional)

•Details regarding how the switch will be accessed for

management (in band or out of band, and VLAN assignment)•Management interface and default gateway IP addresses•Remote access protocols to be used (Telnet, SSH)•SNMP contact and community information (optional)

Installation Guidelines

Rescue and Factory-Default ConfigurationsInitial Configuration ChecklistInitial Configuration Options

CLI EZsetup option

•Available through a console connection

J-Web EZsetup option

•Initiated using the LCD menu

CLI

•Manually configure the switch using the JUNOS CLI

Obtain console connection to switchEnter ezsetupfrom the shell prompt

Amnesiac (ttyu0)login: rootPassword:

---JUNOS 9.1R2.10 built 2008-07-01 04:34:43 UTCroot@% ezsetup

Initial Setup Configuration---------------------------Enter System hostname [Optional]:switchEnter new root password:Re-enter the new password:

Enable Telnet service? [yes|no]. Default [yes]:

…

Easy deployment option for new switches

•Boot switch with factory-default configuration•Navigate the LCD menu and select Enter EZsetup•Connect laptop or PC to ge-0/0/0

•Point Web browser to http://192.168.1.1

•DHCP service starts and assigns address to laptop or PC port•EZsetup wizard appears

•Alternatively, connect laptop or PC to me0 and point Web browser to http://192.168.2.1

EZsetup in J-Web automates initial management configuration options

Log in as root with a null password

Amnesiac (ttyu0)login: root

Amnesiac prompt indicates a factory-default configuration

---JUNOS 9.1R2.10 built 2008-07-01 04:34:43 UTCroot@%

Start the CLI

UNIX shell prompt

root@% cliroot>

CLI prompt

Enter configuration mode:

root> configure[edit]root#

Issue CLI commands to configure the desired functionality

•Remember to issue the commitcommand to activate your changes

•Hint: Use the CLI’s | display setfunctionality to reverse-engineer a configuration into the CLI commands used to create it

Set the identification parameters

•Hostname•Domain name•Root password

[edit]

root# edit system

[edit system]

root# set host-name switch

[edit system]

root# set domain-name example.com

[edit system]

root# set root-authentication plain-text-passwordNew password:

Retype new password:[edit system]root#

Set the time parameters

•Time zone•NTP server•Current time

[edit system]

root# set time-zone America/Los_Angeles[edit system]

root# set ntp boot-server 10.0.3.1[edit system]

root# set ntp server 10.0.3.1[edit system]

root# run set date 200807270900.00Sun Jul 27 09:00:00 UTC 2008

Set the network parameters

•DNS name servers

•Domain search and name•Default gateway•me0 address

[edit system]

root# set name-server 10.0.2.1[edit system]

root# set domain-search example.com[edit system]

root# set domain-name example.com[edit system]root# top

[edit]

root# set routing-options static route 0.0.0.0/0 next-hop 10.0.1.254[edit]

root# set interfaces me0 unit 0 family inet address 10.0.1.1/24

Set the management access parameters

•Telnet/SSH•Enable J-Web

Commit the changes!

[edit]

root# edit system

[edit system]

root# set services telnet[edit system]

root# set services ssh

[edit system]

root# set services web-management http[edit system]

root# commit and-quitcommit complete

Exiting configuration moderoot@switch>

root@switch> show configuration

## Last commit: 2008-07-14 21:09:44 UTC by rootversion 9.1R2.10;system {

host-name switch;

domain-name example.com;domain-search example.com;

time-zone America/Los_Angeles;root-authentication {

encrypted-password \"$1$VEHi2fQx$nosjW.0E9aH2mBZqFFJ7z/\"; ## SECRET-DATA}

name-server {

10.0.2.1;}

services {

ssh;telnet;

web-management {

http;}}

syslog {...}

ntp {

boot-server 10.0.3.1;server 10.0.3.1;}

}

interfaces {

ge-0/0/0 {

unit 0 {

family ethernet-switching;

}}...

me0 {

unit 0 {

family inet {

address 10.0.1.1/24;}}}

}

routing-options {

static {

route 0.0.0.0/0 next-hop 10.0.1.254;}

}

protocols {

lldp {

interface all;}

rstp;}

poe {

interface all;}

In this chapter, we:

•Described installation of Juniper Networks EX-series switches•Saved and restored a rescue configuration

•Returned an EX-series switch to the factory-default state•Described the initial configuration options

•Performed initial configuration using the console’s EZsetup option

•Performed initial configuration using J-Web and the LCD menu•Performed initial configuration using the CLI

1.Which command do you use to load the rescue configuration?

2.List three items you should have ready before performing an initial configuration of an EX-series switch.

3.Which command do you use at the shell prompt to enter operational mode?

4.Which final configuration-mode command must you enter to enable your initial configuration?

Perform tasks normally associated with initial configuration of an EX-series switch.

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