lab@srxA-1> show interfaces | match down | match Physical | count
Count: 11 lines
Step 1.12
A large portion of the Junos OS documentation is available directly from the CLI. You can retrieve high-level topics using the help topic command, whereas you can obtain detailed configuration-related information with the help reference command.
Use the help reference command along with the CLI question-mark operator (?) to find detailed information about configuring a system hostname.
lab@srxA-1> help reference ?
Possible completions: access accounting-options ancp
applications bfd
bgp bridge-domains chassis class-of-service connections diameter
dlsw dot1x dvmrp
dynamic-profiles esis event-options firewall
forwarding-options igmp
interfaces isis l2-learning l2circuit l2vpn layer2-control
layer2-vpns Use the 'help reference l2vpn' command layer3-vpns
ldp link-management lldp logical-systems mld
mpls msdp mvpn oam ospf ospf3 pgm pim
www.juniper.net |
The Junos CLI (Detailed) • Lab 1–11 |
poe policy-options ppp protection-group rip
ripng router-advertisement router-discovery routing-instances routing-options
rsvp sap
schedulers security services snmp
stp switch-options system
vpls vpns vrrp
Question: Which CLI command displays reference information about configuration of the system’s hostname?
Answer: The help reference system host-name command displays information regarding system hostnames:
lab@srxA-1> help reference system host-name host-name
Syntax
host-name hostname;
Hierarchy Level
[edit system]
Release Information
Statement introduced before JUNOS Release 7.4.
Statement introduced in JUNOS Release 9.0 for EX Series switches.
Description
Set the hostname of the router or switch.
Lab 1–12 • The Junos CLI (Detailed) |
www.juniper.net |
Options
hostname--Name of the router or switch. Required Privilege Level
system--To view this statement in the configuration. system-control--To add this statement to the configuration.
Related Topics
* Configuring the Hostname of the Router
Step 1.13
Enter configuration mode.
lab@srxA-1> configure Entering configuration mode
[edit] lab@srxA-1#
Question: What happens to your prompt?
Answer: A pound sign (#) replaces the angle bracket (>), and a configuration hierarchy banner displays.
Question: According to the prompt, what is your position in the configuration hierarchy?
Answer: The display indicates that you are now at the [edit] hierarchy, which is the root of the configuration tree.
Step 1.14
Display the interfaces portion of the candidate configuration.
[edit]
lab@srxA-1# show interfaces
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The Junos CLI (Detailed) • Lab 1–13 |
ge-0/0/0 {
description "MGMT Interface - DO NOT DELETE"; unit 0 {
family inet {
address 10.210.14.131/27;
}
}
}
Step 1.15
Position yourself at the [edit interfaces] configuration hierarchy.
[edit]
lab@srxA-1# edit interfaces
[edit interfaces] lab@srxA-1#
Question: What happens to the banner?
Answer: The banner now correctly shows that the user is at the [edit interfaces] portion of the configuration hierarchy.
Question: What is the result of a show command now?
Answer: A show command displays information pertaining only to configuration statements at and below the current hierarchy. In this case, the software displays only the configuration statements for the system’s ge-0/0/0 interface:
[edit interfaces] lab@srxA-1# show ge-0/0/0 {
description "MGMT Interface - DO NOT DELETE"; unit 0 {
family inet {
address 10.210.14.131/27;
}
}
}
Lab 1–14 • The Junos CLI (Detailed) |
www.juniper.net |