About This Guide
This Command Reference Guide provides all the commands available to configure your system. Refer to the Configuration Guides for detailed information on configuring your ERX system.
Your ERX system is shipped with the latest system software installed. If you need to install a future release or reinstall the system software, refer to the procedures in ERX Installation and User Guide, Appendix E, Installing ERX System Software.
ERX Edge Routers
Four models of ERX edge router are available:
All models use the same software. For information about the differences between the models, see ERX Installation and User Guide, Chapter 1, ERX System Overview.
In the ERX documentation, the term ERX-1400 series refers to both the ERX-1440 system and the ERX-1400 system. Similarly, the term ERX-700 series refers to both the ERX-705 system and the ERX-700 system. The terms ERX-1440 system, ERX-1400 system, ERX-705 system, and ERX-700 system refer to the specific models.
Audience
This guide is intended for experienced system and network specialists who will configure a Juniper Networks ERX system in an Internet access environment.
Conventions
Table 1, Table 2, and Table 3 list all the conventions used in the ERX documentation. Table 1 defines notice icons. Table 2 shows text conventions used throughout the book, except for command syntax. Table 3 provides command syntax conventions used primarily in the ERX Command Reference Guide. For more information about command syntax, see ERX System Basics Configuration Guide, Chapter 1, Planning Your Network.
host1#show ip ospf 2 Routing Process OSPF 2 with Router ID 5.5.0.250 Router is an Area Border Router (ABR) |
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Using the no vs. the default Version of Commands
Most system configuration commands have a no version, which you can use to negate a command (or a portion of it specified by an optional keyword) or restore its default setting. When you use a command without the keyword no, you can reenable a disabled feature or override a default setting. You have the option of using the default keyword whenever the no keyword is also a choice; simply enter the keyword default instead of no.
In most cases, when you execute the default version of a command, it produces the exact results as the no version. There are some commands for which the default version yields a different result than the no version.
Commands for which the default behavior differs from the no behavior are clearly identified in this guide. Unless otherwise specified, therefore, the default command is identical to the no command and will neither be documented nor discussed.
The syntax for each no command is described in this guide. Some commands do not have a no version; this is indicated in the individual command descriptions except for the show commands, none of which has a no version.
The CLI can act on no versions of commands when you have entered sufficient information to distinguish the command syntactically, and ignores all subsequent input on that line.
To be compatible with some non-ERX implementations, the no versions of commands will accept the same options as the affirmative version of the commands. The CLI ignores the optional input if it has no effect on the command behavior. If using the option changes the behavior of the no version, the individual command entry in this guide describes the difference in behavior.
Filtering show Commands
You have access to a variety of show commands that display system and protocol information. You can filter the output of a show command by specifying | (the UNIX pipe symbol), one of the following keywords, and either a case-sensitive text string or a regular expression.
- begin - displays output beginning with the first line that contains the text string or regular expression
- include - displays output lines that contain the text string or regular expression and excludes lines that do not contain the text string or regular expression
- exclude - displays output lines that do not contain the text string or regular expression and excludes lines that do contain the text string or regular expression
For a list of regular expressions, see ERX Routing Protocols Configuration Guide, Vol. 1, Chapter 1, Configuring Routing Policy.
You can press <Ctrl+C> to interrupt the show command output.
Example
In the following example, the output display consists only of lines that contain the string ip. The system omits all other lines of the output from the display because none of them contain the string ip.
host1#show config include-defaults | include ip
! Configuration script generated on FRI NOV 12 1999 16:56:41 UTC
ip address 192.168.1.229 255.255.255.0
ip rip receive version 2 1
ip rip send version 1
ip rip authentication mode md5 17
ip rip authentication key
ip route 10.6.0.0 255.255.0.0 192.168.1.1
ip route 10.10.0.0 255.255.0.0 192.168.1.1
ip route 10.10.0.166 255.255.255.255 192.168.1.1
ip debounce-time 0
router rip
Interface Types and Specifiers
Many commands take the variables interfaceType and interfaceSpecifier. Some commands support all types of interfaces, whereas other commands support only certain types of interfaces. The interface specifier depends on the type of interface. Table 4 shows the interface specifiers for each type of interface.
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Documentation
The ERX Installation Quick Start poster is shipped in the box with all new systems. This poster provides the basic procedures to help you get the system up and running quickly.
The document set contains the following books and online resources:
- ERX Installation and User Guide - Provides the necessary procedures for getting your system operational, including information on installing, cabling, powering up, configuring your system for management access, and general troubleshooting.
- ERX System Basics Configuration Guide - Describes planning and configuring your network, managing the system, passwords, and security, and configuring the system clock and virtual routers.
- ERX Physical and Link Layers Configuration Guide - Describes configuring physical and link layer interfaces.
- ERX Routing Protocols Configuration Guide, Vol. 1 - Provides information about configuring routing policy and configuring IP, IP routing, and IP security.
- ERX Routing Protocols Configuration Guide, Vol. 2 - Describes BGP Routing, MPLS, and related VPNs.
- ERX Policy and QoS Configuration Guide - Provides information about configuring policy management and quality of service (QoS).
- ERX Broadband Access Configuration Guide - Provides information about configuring remote access.
- ERX Command Reference Guide - Contains important information about all system commands implemented in the system software. Use to look up command descriptions, command syntax, a command's related mode, or a description of a command's parameters. It is intended to be used in conjunction with the ERX Configuration Guides.
- ERX Product Overview Guide - Gives a thorough overview of the system from a software and hardware perspective. It provides illustrations and configuration examples that present the "big picture."
- ERX Release Notes - Contains information about features, changes, known problems, and limitations. Provides final information that did not make it into the documentation.
- ERX Online Documentation CD - Provides an online version of this guide and the documents listed above. The online documents contain numerous links between guides, giving easy access to a vast amount of technical information.
Abbreviations
A complete list of abbreviations used in this document set, along with their spelled-out terms, is provided in the ERX System Basics Configuration Guide, Appendix A, Abbreviations and Acronyms.
Using the Online Documentation CD
To use the Online Documentation CD:
- Place the Online Documentation CD in your CD drive.
- Follow the instructions located on the inside cover of your CD jewel case to install Acrobat Reader.
- From the Documentation folder on the CD, open the CDtips.pdf file for information on using Adobe Acrobat Reader.
- From the Documentation folder on the CD, open the Welcome.pdf file for access to the documentation set.
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