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 simplied and shortened the installaon and conguraon steps to make it easy
for you to install a DC-powered ACX7024 in a rack, power it up, and congure basic sengs.

Meet the ACX7024
The ACX7024 Cloud Metro Router is a high-performance access router that addresses the growing demands of metro
applicaons. With a compact 1-U form factor, temperature-hardened design, and advanced ming features, the
ACX7024 is well suited to support Ethernet business services, residenal 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 capabilies that include support for the latest protocol and trac engineering technologies,
enhanced security, and precision ming for mobile backhaul applicaons.
Install the ACX7024
IN THIS SECTION
What Else Do I Need? | 2
Rack It | 3
Along with your ACX7024 router, you’ll also nd:
•Documentaon roadmap card
• Two-post rack mounng 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 electrostac 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 installaon, 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. Posion the router in front of the rack.
The mounng brackets are preinstalled on the ACX7024 router.
3. Li the ACX7024 router and posion it in the rack. Line up the boom hole in each mounng 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 boom rst,
then ghten the screws on the top.
5. Check to see that the mounng 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 connecon 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 potenally cause
circulang current in feed wires whenever there is any dierence 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 conguraon provides the commonly deployed A/B
feed redundancy for the system.
To meet safety and electromagnec interference (EMI) requirements and to ensure proper operaon, you'll need to
properly ground the router before connecng it to power. Have a licensed electrician aach 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 connecons to the power supply module. In a
typical power distribuon scheme where the return is connected to chassis ground at the baery plant, you can
use a mulmeter to verify the resistance of the –48V and RTN DC cables to chassis ground:
• The cable with very low resistance (indicang a closed circuit) to chassis ground is posive (+). You install this
cable on the V+ (return) DC power input terminal.
• The cable with very high resistance (indicang an open circuit) to chassis ground is negave (–). You install this
cable on the V– (input) DC power input terminal.
CAUTION: You must ensure that power connecons 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 aach 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 acve while you are connecng 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 oce, use a 14 AWG DC wire.
a. Secure the ring lug of the posive (+) 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 negave (–) 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 unl snug using the Phillips number 2 screwdriver.
Do not overghten—apply 1.2 N-m of torque to the screws.
NOTE: Aer 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 Conguraon | 7
6

Now that the ACX7024 is powered on, let’s do some inial conguraon to get it up and running on the network. It’s
simple to congure and manage the ACX7024 using the CLI.
Plug and Play
The ACX7024 router ships with factory-default sengs that enable plug-and-play operaon. These sengs load as
soon as you power on the router.
Customize the Basic Conguraon
You can easily customize the factory-default conguraon with just a few commands. Inially, you’ll need to make
changes through the console port. Aer you congure the management port, you can access the ACX7024 using SSH
and make addional conguraon changes. You can always revert to the factory-default conguraon whenever you
want.
Have the following informaon ready before you begin customizing the router:
• Hostname
• Root authencaon password
• Management port IP address
• Default gateway IP address
• IP address and prex length of remote prexes
•(Oponal) SNMP read community, locaon, and contact informaon
1. Verify that the following default serial port sengs are congured 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 soware 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 conguraon 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 conguraon. You must stop ZTP before you
congure any sengs. Unl you assign a root password and make an inial commit, you might see ZTP-
related messages on the console. You can safely ignore these messages while you congure the root
password.
8. Add a password for the root administraon user account.
[edit]
root@re0# set system root-authentication plain-text-password
New password: password
Retype new password: password
8

9. Commit the conguraon, and wait for the ZTP process to stop.
[edit]
root@re0# commit
A message appears on the console, conrming 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. (Oponal) Give the router a name. If the name includes spaces, enclose the name in quotaon marks (“ ”).
[edit]
root@re0# set system host-name host-name
11. Congure the default gateway.
[edit]
root@re0# set routing-options static route 0.0.0.0/0 next-hop destination-ip
12. Congure the IP address and prex 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. (Oponal) Congure specic stac routes to remote prexes if you do not want the remote prexes 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 credenals. 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 conguraon.
Your changes become the acve conguraon for the router.
[edit]
root@re0# commit
Step 3: Keep Going
IN THIS SECTION
What's Next | 11
General Informaon | 11
Learn With Videos | 12
10