Juniper Day One+ ACX7024 User manual
Day One+
ACX7024
IN THIS GUIDE
Step 1: Begin | 1
Step 2: Up and Running | 6
Step 3: Keep Going | 10
Step 1: Begin
IN THIS SECTION
Meet the ACX7024 | 2
Install the ACX7024 | 2
Power On | 4
In this guide, we provide a simple, three-step path, to quickly get you up and running with your new Juniper Networks®
ACX7024 Cloud Metro Router. We’ve simplied and shortened the installaon and conguraon steps to make it easy
for you to install a DC-powered ACX7024 in a rack, power it up, and congure basic sengs.
Meet the ACX7024
The ACX7024 Cloud Metro Router is a high-performance access router that addresses the growing demands of metro
applicaons. With a compact 1-U form factor, temperature-hardened design, and advanced ming features, the
ACX7024 is well suited to support Ethernet business services, residenal access, and 5G mobile deployments.
The ACX7024 provides 1GbE to 100GbE port exibility and a switching capacity of 360 Gbps. It runs Junos OS Evolved
and provides several capabilies that include support for the latest protocol and trac engineering technologies,
enhanced security, and precision ming for mobile backhaul applicaons.
Install the ACX7024
IN THIS SECTION
What Else Do I Need? | 2
Rack It | 3
Along with your ACX7024 router, you’ll also nd:
•Documentaon roadmap card
• Two-post rack mounng brackets that are preinstalled on the router
• Two #10-32 grounding screws to secure the grounding lug
• An LCD6 2-hole grounding lug
What Else Do I Need?
• Someone to help you secure the router to the rack
• An electrostac discharge (ESD) grounding wrist strap
• Four rack mount screws appropriate for your rack to secure the router to the rack
• A #2 Phillips (+) screwdriver
2
• A management host such as a laptop or desktop PC
• A serial-to-USB adapter (if your laptop or desktop PC doesn’t have a serial port)
• A grounding cable: 6 AWG, 90°C stranded copper wire
• A 12 AWG and 75°C temperature-rated or 14 AWG and 90°C temperature-rated stranded copper wire to connect
the DC source to the router.
• A customer-site 2-pole circuit breaker rated for 30A and 80V, or as required by local electrical code.
Rack It
Before you start the installaon, be sure to review the General Safety Guidelines and Warnings.
Here’s how to install the ACX7024 in a two-post rack:
1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap
to a site ESD point.
2. Posion the router in front of the rack.
The mounng brackets are preinstalled on the ACX7024 router.
3. Li the ACX7024 router and posion it in the rack. Line up the boom hole in each mounng bracket with a hole in
each rack rail, making sure the ACX7024 router is level.
4. Secure the chassis to the rack using the rack mount screws (not provided). Tighten the screws on the boom rst,
then ghten the screws on the top.
5. Check to see that the mounng screws on each side of the rack are lined up and the router is level.
3
Power On
Now that you’ve installed your ACX7024 in the rack, let's connect it to power.
The ACX7024 supports DC power supplies that are pre-installed at the factory.
CAUTION: The connecon between each power source and power supply module must include a
circuit breaker. We recommend that you use a customer-site 2-pole circuit breaker rated for 30A and
80V, or as required by local electrical code.
Do not connect two sources to a single power supply module because doing so can potenally cause
circulang current in feed wires whenever there is any dierence in the voltage of the two sources.
The ACX7024 router operates with a DC power supply module that has a single, non-redundant, feed input. For source
redundancy, you'll need to install two DC power supplies in the ACX7024. Connect source (A) to one power supply
module and source (B) to the second power supply module. This conguraon provides the commonly deployed A/B
feed redundancy for the system.
To meet safety and electromagnec interference (EMI) requirements and to ensure proper operaon, you'll need to
properly ground the router before connecng it to power. Have a licensed electrician aach the cable lug to the
grounding cable.
1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the
strap to a site ESD point.
2. Connect the grounding cable to a proper earth ground.
3. Place the grounding cable lug over the grounding points on the side of the chassis, and secure it with the grounding
screws. Apply 2.5 N-m of torque to the grounding screws.
4
4. Dress the grounding cable and verify that it doesn't touch or block access to router components, or drape where
people could trip over it.
5. Ensure that the power supplies are fully inserted in the chassis.
6. Verify that the DC power cables are correctly labeled before making connecons to the power supply module. In a
typical power distribuon scheme where the return is connected to chassis ground at the baery plant, you can
use a mulmeter to verify the resistance of the –48V and RTN DC cables to chassis ground:
• The cable with very low resistance (indicang a closed circuit) to chassis ground is posive (+). You install this
cable on the V+ (return) DC power input terminal.
• The cable with very high resistance (indicang an open circuit) to chassis ground is negave (–). You install this
cable on the V– (input) DC power input terminal.
CAUTION: You must ensure that power connecons maintain the proper polarity. The power
source cables might be labeled (+) and (–) to indicate their polarity. There is no standard color
coding for DC power cables. The color coding used by the external DC power source at your site
determines the color coding for the leads on the power cables that aach to the DC power input
terminals on each power supply module.
7. Ensure that the input circuit breaker is open so that the voltage across the DC power source cable leads is 0 V and
that the cable leads do not become acve while you are connecng DC power.
8. Remove the terminal block cover.
9. Remove the screws on the terminals by using the screwdriver. Save the screws.
WARNING: Ensure that the power cables do not block access to device components or drape
where people can trip over them.
10. Connect each power supply module to the DC power sources:
5
NOTE: To connect the DC source to an ACX7024 router, use a 12 AWG and 75°C temperature-rated or 14
AWG and 90°C temperature-rated stranded copper wire. To connect the DC power source to an ACX7024
in a data center or a central oce, use a 14 AWG DC wire.
a. Secure the ring lug of the posive (+) DC power source cable to the RTN (return) terminal on the DC power
supply module using one of the terminal screws.
b. Secure the ring lug of the negave (–) DC power source cable to the –48V (input) terminal on the DC power
supply module using the other terminal screw.
c. Tighten the screws on the power supply module terminals unl snug using the Phillips number 2 screwdriver.
Do not overghten—apply 1.2 N-m of torque to the screws.
NOTE: Aer the input DC wires are crimped to the wiring lugs, cover the lugs and crimped area with a
suitable heat shrink sleeve to avoid exposed bare lug or crimped areas.
11. Replace the terminal block cover. Apply 0.5 N-m of torque to the screws.
12. Close the input circuit breaker.
NOTE: The switch powers on as soon as you connect it to power.
Step 2: Up and Running
IN THIS SECTION
Customize the Basic Conguraon | 7
6
Now that the ACX7024 is powered on, let’s do some inial conguraon to get it up and running on the network. It’s
simple to congure and manage the ACX7024 using the CLI.
Plug and Play
The ACX7024 router ships with factory-default sengs that enable plug-and-play operaon. These sengs load as
soon as you power on the router.
Customize the Basic Conguraon
You can easily customize the factory-default conguraon with just a few commands. Inially, you’ll need to make
changes through the console port. Aer you congure the management port, you can access the ACX7024 using SSH
and make addional conguraon changes. You can always revert to the factory-default conguraon whenever you
want.
Have the following informaon ready before you begin customizing the router:
• Hostname
• Root authencaon password
• Management port IP address
• Default gateway IP address
• IP address and prex length of remote prexes
•(Oponal) SNMP read community, locaon, and contact informaon
1. Verify that the following default serial port sengs are congured on your laptop or desktop PC:
• Baud Rate—9600
• Flow Control—None
• Data—8
• Parity—None
• Stop Bits—1
• DCD State—Disregard
2. Connect the console port on the ACX7024 to a laptop or desktop PC using the RJ-45 cable and RJ-45 to DB-9
adapter. The console (CON) port is the lower RJ-45 port on the le side of the port panel.
7
NOTE: If your laptop or desktop PC doesn't have a serial port, use a serial-to-USB adapter (not provided).
3. At the Junos OS Evolved login prompt, type root to log in.
You don't need to enter a password. If the soware boots before you connect your laptop or desktop PC to the
console port, you might need to press the Enter key for the prompt to appear.
re0 login: root
4. Start the CLI.
[vrf:none] root@re0:~# cli
5. Enter conguraon mode.
root@re0> configure
6. Stop the chassis auto-upgrade process.
[edit]
root@re0# delete chassis auto-image-upgrade
7. Stop zero-touch provisioning (ZTP).
[edit]
root@re0# delete system commit factory-settings
NOTE: ZTP is enabled on the ACX7024 in the factory-default conguraon. You must stop ZTP before you
congure any sengs. Unl you assign a root password and make an inial commit, you might see ZTP-
related messages on the console. You can safely ignore these messages while you congure the root
password.
8. Add a password for the root administraon user account.
[edit]
root@re0# set system root-authentication plain-text-password
New password:
password
Retype new password:
password
8
9. Commit the conguraon, and wait for the ZTP process to stop.
[edit]
root@re0# commit
A message appears on the console, conrming that the ZTP process has stopped.
[edit]
root@# [ 511.430877] ztp.py[13237]: 2021-03-04 05:28:00 INFO: ZTP:(et-0/2/7) DHCP request timed out
[ 511.432804] ztp.py[13237]: 2021-03-04 05:28:00 INFO: ZTP: checkZTPAbort: Upgrade detected pending abort
[ 511.433586] ztp.py[13237]: 2021-03-04 05:28:00 INFO: ZTP: notifier loop user requested ZTP abort
[ 511.485370] ztp.py[13237]: 2021-03-04 05:28:00 INFO: ZTP: exiting
[ 511.580800] ztp.py[31898]: Notice: PID found for app ztp in /var/run/pid/ztp.pid is 13237.Executing
command: (/usr/sbin/cleanzk -c /var/run/zkid/13237.id;rm /var/run/zkid/13237.id)
[ 512.614206] ztp.py[31898]: rm: cannot remove '/var/run/zkid/13237.id': No such file or directory
10. (Oponal) Give the router a name. If the name includes spaces, enclose the name in quotaon marks (“ ”).
[edit]
root@re0# set system host-name
host-name
11. Congure the default gateway.
[edit]
root@re0# set routing-options static route 0.0.0.0/0 next-hop destination-ip
12. Congure the IP address and prex length for the management port on the router. On the ACX7024, the
management port (MGMT) is the upper RJ-45 port on the le side of the port panel.
[edit]
root@re0# set interfaces re0:mgmt-0 unit 0 family inet address
address/prefix-length
13. (Oponal) Congure specic stac routes to remote prexes if you do not want the remote prexes to use the
default route.
[edit]
root@re0# set routing-options static route address/prefix-length next-hop
destination-ip
9
14. Enable Telnet service, if required.
[edit]
root@re0# set system services telnet
NOTE: When Telnet is enabled, you cannot log in to the ACX7024 using root credenals. Root login is
allowed only for SSH access.
15. Enable SSH service.
[edit]
root@re0# set system services ssh
16. To allow users to log in to the router as root through SSH, include the root-login statement.
[edit system services ssh]
root@re0# root-login (allow)
NOTE: By default, users are not allowed to log in to the router as root through SSH.
17. Commit the conguraon.
Your changes become the acve conguraon for the router.
[edit]
root@re0# commit
Step 3: Keep Going
IN THIS SECTION
What's Next | 11
General Informaon | 11
Learn With Videos | 12
10
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