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JUNOS Basic Configuration
Transcript of JUNOS Basic Configuration
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Copyright © 2003 Juniper Networks, Inc. Proprietary and Confidential www.juniper.net 1
JUNOS Basic Configuration
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Installation
• Power-up & Power-down
• Initial Configuration
Interface
• Standard Interfaces
• FPC, PIC & Port Number
• Configuring Interface
Agenda
Slide 2
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Installation
• Power-up & Power-down
• Initial Configuration
Interface
• Standard Interfaces
• FPC, PIC & Port Number
• Configuring Interface
Agenda
Slide 3
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4Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Powerup and Powerdown
§ Powerup
• Connect all cables
• Turn on one power supply
• Turn on second power supply
§ Powerdown
• Shut down JUNOS routing software
• CLI request system halt command
• Turn off power supplies
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5Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Visible Activity at Startup
§ Craft interface displays:
• Starting Routing Engine• Starting PFE• Starting Cards
§ FPC LEDs
• Blink green while testing
• Become solid green when tests pass
§ Alarm LEDs light as needed
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6Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Initial Configuration
§ Using serial console
• Root password
• Machine name
• IP address (prefix) and prefix length assigned to management interface (fxp0)
• DNS server
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7Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Troubleshooting
§ Craft interface
• Red LEDs indicate failure
• LCD displays all major and minor alarms
§ Syslog messages
• Contain more detailed information
• CLI show log messages command
§ CLI
• Interactive failure analysis using show commands
• monitor log files using monitor command
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8Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Boot Devices and Media
§ Removable media
• Used for install and upgrade, normally left empty
• RE —PCMCIA flash card
§ Flash drive
• Solid-state media
• Primary source for booting software
§ Hard drive
• Secondary source for booting software
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9Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Software Installation
§ Arrives preinstalled from factory onto
• Flash drive
• Hard drive (alternate copy)
• Removable media (e.g. PCMCIA)
§ Can boot from alternate copy
• If flash drive fails, router can still boot from hard drive or removable media
§ Upgradable
• Upgrade packages available through the Internet or on removable media
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10Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Boot Sequence
§ Hardware controlled
• Software notifies hardware when boot completes
Success? Success? Success?
Removablemedia Halt
Done
Solid-stateflash disk
Rotatingdisk
Done Done
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Installation
• Power-up & Power-down
• Initial Configuration
Interface
• Standard Interfaces
• FPC, PIC & Port Number
• Configuring Interface
Agenda
Slide 11
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12Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Initial Configuration
§ Root password
• Root password not set at factory
• Must use console to configure root password
§ Router and domain name
§ Management interface IP address and prefix length
§ Default router IP address
§ DNS server IP address
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13Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Initial Configuration§ Enter configuration mode
root@> configure
[edit]
root@#
§ Set root password
• Plain text knownroot@# set system root-authentication
plain-text-password
• Pre-encrypted passwordroot@# set system root-authentication
encrypted-password encrypted-password
• SSH (secure shell) keyroot@# set system root-authentication
ssh-rsa key
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14Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Initial Configuration§ Set router name
[edit]
root@# set system host-name lab2
§ Set router domain name [edit]
root@# set system domain-name juniper.net
§ Commit changes so far[edit]
root@# commit
commit complete
[edit]
root@lab2#
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15Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Initial Configuration§ Set management Ethernet IP address and prefix
[edit]
root@lab2# set interfaces fxp0 unit 0 family inet address ip-address/prefix-length
§ Set default route[edit]
root@lab2# set system backup-router gateway-address
root@lab2# set routing-options static route default nexthop gateway-address retain no-readvertise
§ Set name server address[edit]
root@lab2# set system name-server ns-address
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16Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Full Installation
§ Reinstall JUNOS software if storage media fails or is corrupted
§ Future major software revisions may require full installation
§ Three steps
• Prepare to reinstall JUNOS software
• Reinstall JUNOS software
• Configure JUNOS software
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17Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Full Installation: Preparation
§ Record basic information
• Router name
• Management interface IP address and prefix length
• Default router IP address
• Domain name and DNS server IP address
§ Copy existing configuration file to a safe place on the network
• Located in /config/juniper.conf
• Full installation erases both flash and rotating drives
§ Locate your Juniper installation media
• LS-120 floppy or PCMCIA card contains entire JUNOS distribution
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18Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Full Installation: Reinstallation
§ Insert installation media into Routing Engine
• PCMCIA flash card
§ Reboot router
• Use the CLI from the serial console
root@lab2> request system halt
• Power-cycle router
§ Follow prompts
• Enter configuration information saved during installation preparation
§ System reboots automatically after installation completes
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19Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Full Installation: Software Configuration§ Log in as root
no-name (ttyd0)
login: root
Last login: date on ttyd0
Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994
The Regents of the University of California. All rights reserved.
---JUNOS 4.0R1 built 2000-02-10 09:29:44 UTC
#
§ Start CLI# cli
root@no-name>
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20Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Full Installation:Software Configuration§ Enter configuration mode
root@no-name> configure
[edit]
root@no-name#
§ Set root password
• Plain-textroot@no-name# set system root-authentication
plain-text-password text-password
• Pre-encrypted passwordroot@no-name# set system root-authentication
encrypted-password encrypted-password
• SSH keyroot@no-name# set system root-authentication
ssh-rsa key
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21Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Software Update Packages
§ JUNOS software updates are contained in four packages
• jkernel–Operating system
• jroute–Routing Engine software
• jpfe–Packet Forwarding Engine software
• jdocs–On-line documentation
• jbundle–All four upgrade packages
§ Packages can be upgraded individually
§ CLI show system software command displays installed packages
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22Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Package Naming Convention§ Software packages have standard names
package-m.nZnumber.tgz
• m.n is the major version number
• Z is a single uppercase letter
• A–Alpha
• B–Beta
• R–Release
• I–Internal
• number is the release number, which might include the build number for that release
§ For example
jbundle-4.0R1.2.tgz
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23Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Upgrade Software Packages
§ Download current package from software download page at www.juniper.net
§ Add new packageroot@lab2> request system software add new-package-name
Checking available free disk space...11200k available,6076k suggested.
§ If needed, reboot routerroot@lab2> request system reboot
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24Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Back Up Existing Software
§ System software and configuration can be backed up to rotating disk
§ Best used
• Before major upgrade to ensure system recovery if necessary
• When system is known stable
§ CLI request system snapshot command
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Installation
• Power-up & Power-down
• Initial Configuration
Interface
• Standard Interfaces
• FPC, PIC & Port Number
• Configuring Interface
Agenda
Slide 25
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26Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Standard Interfaces
§ Interface contained on PIC
§ PIC plugs into FPC
• FPC has room for four PICs
§ FPC plugs into chassis
Physical Physical Interface Interface
CardCard
PICPIC
PICPIC
PICPIC
FPC
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27Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Standard Interfaces
§ Packet-based SONET/SDH PICs• 4-port OC-3
• 1-port OC-12
• Standard packet version or channelized to DS-3 level
• 1-port OC-48
• Takes up all four PIC slots on M20 or M40
• Takes up one PIC slot on M160
• 1-port OC-192
• Takes up all four PIC slots on M160
• Not available on M20 or M40
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28Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Standard Interfaces
§ ATM based SONET/SDH PICs
• 2-port OC-3 ATM
• 1-port OC-12 ATM
§ 4 port DS-3 PIC
• 4 ports
§ 4 port E-3 PIC
§ Ethernet PICs
• 1 Port Gigabit Ethernet
• 4 Port 100 Mbit Ethernet
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29Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Standard Interfaces
§ System uses consistent names for all customer interfaces
§ Based on
• Interface port type
• FPC slot number
• PIC slot number within FPC
• Port number within PIC
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30Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Interface Port Type§ at— ATM over SONET/SDH ports
§ e3— E-3 ports
§ fe— Fast Ethernet ports
§ so— SONET/SDH ports
§ t3— DS-3 ports
§ ds- Nx64k interfaces
§ ge— Gigabit Ethernet ports
§ ml- multilink
§ ls – link services
§ sp – adaptive services pic
§ vt- virtual interface
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Installation
• Power-up & Power-down
• Initial Configuration
Interface
• Standard Interfaces
• FPC, PIC & Port Number
• Configuring Interface
Agenda
Slide 31
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32Copyright © 2003 Juniper Networks, Inc. www.juniper.net
FPC Slot Numbers
M40
3
2
1
0
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7M160
M20
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33Copyright © 2003 Juniper Networks, Inc. www.juniper.net
PIC Slot Numbers
0
1
3
2
§ M40 and M160
• Top to bottom
§ M20
• Right to left
013 2
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34Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Port Numbers
0
1
2
3
u M40 and M160v Top to bottomv Right to left
u M20v Right to leftv Bottom to top 01
23
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35Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Test Your Knowledge (I)
On this mythical M40 PIC,what port number is this?
HyperNet
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36Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Test Your Knowledge (II)
On this mythical M20 PIC,what port number is this?
Hyp
erNet
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37Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Interface Names
§ Physical interfaces have standard names
• Type
• FPC slot
• PIC slot
• Port numberso-5/2/3
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38Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Interface Names
§ Logical interfaces are used to set up Frame Relay DLCIs or ATM virtual circuits
§ Interface number is separate in meaning from the actual DLCI or ATM VC and can be any arbitrary value
§ Suggested convention is to keep them the same whenever possible
so-5/2/3.43
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39Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Permanent Interfaces
§ Router has two permanent interfaces
• Out-of-band management interface is called fxp0
• Internal Routing Engine to PFE connection is called fxp1
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Installation
• Power-up & Power-down
• Initial Configuration
Interface
• Standard Interfaces
• FPC, PIC & Port Number
• Configuring Interface
Agenda
Slide 40
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41Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Configure Interfaces
§ Two steps
• Configure physical properties
• Configure logical properties
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42Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Configure Interfaces• Physical properties
• Clocking
• Scrambling
• Frame check sequence (FCS)
• Maximum transmission unit (MTU)
• Keepalives
• Other link characteristics
• Logical properties
• Protocol family (Internet, ISO, MPLS)
• Addresses (IP address, ISO NET address)
• Virtual circuits (VCI/VPI, DLCI)
• Other characteristics
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43Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Configure Interfaces
§ Standard configuration statement hierarchyinterfaces {
interface-name {
physical-properties;
[…]
unit unit-number {
logical-properties;
[…]
}
}
}
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44Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Configure Physical Properties§ Configure physical properties of the interface using the set command:
set interface so-1/0/3 no-keepalives
§ Or park yourself in the interfaces section of the hierarchy and set many options
lab@omaha> configure
[edit]
lab@omaha# edit interfaces so-1/0/3
[edit interfaces so-1/0/3]
lab@omaha# set no-keepalives
lab@omaha# set sonet-options fcs 32
lab@omaha# commit
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45Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Default Settings
§ Default settings for an interface are usually enough to get you talking
§ Most interfaces do not need complex setup
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46Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Logical Interface Settings
§ Each physical interface has one or more logical interfaces
§ Logical interface separates configuration information for each ATM virtual circuit, Frame Relay DLCI, or VLAN
§ Some physical interface encapsulations allow only one possible logical interface
• PPP
• HDLC
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47Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Logical Interface Settings
§ Logical settings
• Protocol family (Internet, ISO, MPLS)•Protocol MTU
•IP address
•Other protocol options
• Virtual circuit identifiers (VPI.VCI, DLCI)
• Other according to-circuit characteristics
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48Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Unit Numbers
§ Each logical interface has a unit number
§ Number can be arbitrary
• Typically, the unit number is the same as the VC or DLCI number
§ Some physical interfaces have only one possible logical interface, and one unit number only, which must be configured as unit zero
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49Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Configure Logical Interfaces
§ Use the set command to configure a logical interface, using the unit number
§ For example
set interface so-1/0/3 unit 40 dlci 40
§ Or park yourself at the unit level
lab@omaha> configure
[edit]
lab@omaha# edit interfaces so-1/0/3 unit 40
[edit interfaces so-1/0/3 unit 40]
lab@omaha# set dlci 40
lab@omaha# set family inet address 10.0.20.1/24
lab@omaha# commit
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50Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Configure Protocol Families
§ Each major protocol is called a family
§ Internet protocol has TCP, UDP, and ICMP as family members
§ Most common protocol families are
• Internet (inet)
• International Standards Organization (iso)
• Traffic engineering (mpls)
• Multiple families can live on one logical interface
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51Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Configure Protocol Families
§ Internet protocol family (inet)
§ Allows you to set
• IP address: address A.B.C.D/prefix_length
• Remote address on point-to-point links: destination A.B.C.D
• Broadcast address: broadcast A.B.C.D
• MTU size: mtu bytes
• ICMP redirect control: no-redirects
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52Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Configure Protocol Families§ Minimal sample configuration
lab@omaha> configure
[edit]
lab@omaha# edit interfaces so-1/0/3
[edit interfaces so-1/0/3]
lab@omaha# set unit 0 family inet address 10.0.20.1/24
lab@omaha# commit
§ Displayed as
interfaces {
so-1/0/3 {
unit 0 {
family inet {
address 10.0.20.1/24;
}
}
}
}
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53Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Hands-On Session
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54Copyright © 2003 Juniper Networks, Inc. www.juniper.net
System Configuration - 30 min
Level 2
JB Penang
KL
fxp00.2
fxp029.2
fxp00.1
fxp2
2.2
fxp0
2.1
fxp21.1
fxp21.2
fxp18.1
fxp2
31.2
fxp18.2
ManilaManila
fxp116.2
fxp215.2
fxp021.1
fxp116.1
SingaporeSingapore BangkokBangkok
fxp2
31.1
fxp124.2
fxp124.1
fxp013.2
1. Host name
2. Domain & DNS Server Name
3. Backup & Default Router
4. User Access to System
5. Time Zone
6. System Services telnet
7. Logging Services (optional)
Answer:
1. set host-name host-name
2. set domain-name juniper.net
set name-server 1.2.3.4
3. set back-up router gateway-addr
[edit routing-options static]
set route default nexthop gateway-addr
5. [edit system] set time-zone
6. set services telnet
7. [edit system] set syslog file filename
Domain juniper.net 1.2.3.4 Gateway 10.100.0.1Lab IP Address MapLab IP Address Map
10.0.x.y/2410.0.x.y/24
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55Copyright © 2003 Juniper Networks, Inc. www.juniper.net
Interface Configuration -30 min
Area 0
JB Penang
KL
fxp00.2
fxp029.2
fxp00.1
fxp2
2.2
fxp0
2.1
fxp21.1
fxp21.2
fxp18.1
fxp2
31.2
fxp18.2
ManilaManila
fxp116.2
fxp215.2
fxp021.1
fxp116.1
SingaporeSingapore BangkokBangkok
fxp2
31.1
fxp124.2
fxp124.1
fxp013.2
1. Inventory your Interface
fxp0 :_________________
fxp1 :_________________
fxp2 :_________________
2. Configure the Interfaces
3. Check your work by
ping:__________________
traceroute:_____________
Lab IP Address MapLab IP Address Map10.0.x.y/2410.0.x.y/24