EX4400 System Overview
EX4400 Switches Hardware Overview
The Juniper Networks® EX4400 Switch is Juniper's first cloud-ready switch. The EX4400 switch provides connectivity for high-density environments and scalability for growing networks. You typically use EX4400 switches in large branch offices, campus wiring closets, and data centers. In data centers, you can position EX4400 switches as top-of-rack switches to provide connectivity for all devices in the rack.
We ship the EX4400 switches:
-
With RJ-45 ports that support IEEE 802.3bt Power over Ethernet (PoE-bt), fast Power over Ethernet (PoE), and Perpetual PoE in EX4400-24P, EX4400-24MP, EX4400-48P, and EX4400-48MP switches
-
With one hot-swappable AC or DC power supply. You can order an additional power supply and power cord separately to provide 1+1 redundancy.
-
With dual hot-swappable fan trays that provide front-to-back or back-to-front airflow and maintain high system availability.
-
With a slot to install an optional extension module.
You can manage EX4400 switches by using the CLI or J-Web. You can also use Juniper Mist™ to manage EX4400 switches that you deploy in a cloud network.
Here's a brief video overview of the EX4400 switches except EX4400-24MP, EX4400-48MP, and EX4400-24X switches:
Here's a brief video overview of the EX4400-24MP and EX4400-48MP switches:
Here's a brief video overview of the EX4400-24X switch:
- Benefits of the EX4400 Switch
- Software and Hardware Features
- Components on the Front and Rear Panels of EX4400 Switch Models
- Extension Modules
- Virtual Chassis
- Channelization in EX4400 Switches
- EX4400 Cooling System
- EX4400 Power System
Benefits of the EX4400 Switch
Cloud readiness—EX4400 switches are our first cloud-ready switches. You can deploy the switches and manage them by using Juniper Mist.
Support for Virtual Chassis—EX4400 switches support Virtual Chassis technology. You can interconnect up to 10 EX4400 switches to form a Virtual Chassis.
Support for channelization—You can channelize the QSFP28 ports on the EX4400 switch and increase the number of interfaces.
Support for MACsec and EVPN-VXLAN architecture—EX4400 switches support IEEE 802.1AE Media Access Control Security (MACsec) and EVPN-VXLAN. Support for MACsec and EVPN-VXLAN ensures link-layer data confidentiality, data integrity, and data origin authentication to help secure deployments in enterprise multicloud deployments. The RJ-45, SFP, and SFP+ network ports and the ports in the 4x25GbE SFP28 extension module support MACsec with AES-128, AES-256, AES-XPN-128, and AES-XPN-256 encryption.
Support for IEEE 802.3bt Power over Ethernet (PoE-bt)—The RJ-45 ports in EX4400-24P, EX4400-24MP, EX4400-48P, and EX4400-48MP switches support IEEE 802.3bt (PoE-bt), providing power of up to 90 W per port.
Support for fast PoE—The RJ-45 ports in EX4400-24P, EX4400-24MP, EX4400-48P, and EX4400-48MP switches support fast PoE. Fast PoE delivers PoE power to connected devices even before the switch is fully operational. You'll find this feature beneficial when your connected devices need only power, not network connectivity.
Support for Perpetual PoE—The RJ-45 ports in EX4400-24P, EX4400-24MP, EX4400-48P, and EX4400-48MP switches support perpetual PoE. This feature provides uninterrupted power to connected devices even when the switch is rebooting.
Compact solution—The EX4400 switch is a modular single rack unit (1-U) device that is an apt solution for crowded wiring closets and access switch locations. The switch provides carrier-class reliability of modular systems with the economics and flexibility of stackable platforms.
High availability—EX4400 switches provide high availability through redundant power supplies and fans, graceful Routing Engine switchover (GRES), and nonstop bridging (NSB) and nonstop active routing (NSR) when deployed in a Virtual Chassis configuration.
Software and Hardware Features
Juniper Networks EX Series Switches run Junos® operating system (Junos OS), which provides Layer 2 and Layer 3 switching, routing, and security services. We've listed the first Junos OS release, hardware features, and software features supported on the models Table 1.
|
Switch Model |
Aggregate Throughput |
First Junos OS Release Supported |
Hardware Features |
Software Features |
|---|---|---|---|---|
|
EX4400-24T and EX4400-24P |
324 Gbps (unidirectional) 648 Gbps (bidirectional) |
Junos OS Release21.1R1 |
|
For the complete list of features, see Feature Explorer. |
|
EX4400-48T and EX4400-48P |
348 Gbps (unidirectional) 696 Gbps (bidirectional) |
|||
|
EX4400-48F |
456 Gbps (unidirectional) 912 Gbps (bidirectional) |
|||
|
EX4400-24MP |
540 Gbps (unidirectional) 1080 Gbps (bidirectional) |
Junos OS Release21.2R1 |
||
|
EX4400-48MP |
510 Gbps (unidirectional) 1020 Gbps (bidirectional) |
|||
|
EX4400-24X |
540 Gbps (unidirectional) 1080 Gbps (bidirectional) |
Junos OS Release23.1R1 |
Components on the Front and Rear Panels of EX4400 Switch Models
- Components on the Front and Rear Panels of EX4400-24T and EX4400-24P Switches
- Components on the Front and Rear Panels of EX4400-24MP Switches
- Components on the Front and Rear Panels of EX4400-24X Switches
- Components on the Front and Rear Panels of EX4400-48T and EX4400-48P Switches
- Components on the Front and Rear Panels of EX4400-48MP Switches
- Components on the Front and Rear Panels of EX4400-48F Switches
Components on the Front and Rear Panels of EX4400-24T and EX4400-24P Switches
Figure 1 shows the front view of an EX4400-24T switch with 24 RJ-45 ports. Figure 2 shows the front view of an EX4400-24P switch with 24 RJ-45 ports that support PoE-bt.
Figure 3 shows the rear view of an EX4400-24T and EX4400-24P switch with AC power supplies.
Figure 4 shows the rear view of an EX4400-24T switch with DC power supplies.
Figure 5 shows the components on the front panel of an EX4400-24T switch.
1 — 10/100/1000BASE-T ports | 4 — Port mode LEDs (labeled SPD, DX, and EN) |
2 — USB-C console port | 5 — Factory reset/mode button |
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD) | 6 — Extension module slot |
We enabled the CLD LED feature in Junos OS Release 21.2R1.
Figure 6 shows the components on the front panel of an EX4400-24P switch.
1 — 10/100/1000BASE-T ports. These ports support PoE-bt. | 4 — Port mode LEDs (labeled SPD, DX, EN, and POE) |
2 — USB-C console port | 5 — Factory reset/mode button |
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD) | 6 — Extension module slot |
We enabled the CLD LED feature in Junos OS Release 21.2R1.
EX4400-24T model supports 550-W AC or DC power supplies. You must not install AC and DC power supplies in the same chassis.
Figure 7 shows the components on the rear panel of an EX4400-24T switch with an AC power supply.
1 — Serial number ID label | 9 — Empty slot for power supply |
2 — Console port (labeled CON) | 10 — Power supply rating label |
3 — Management port (labeled MGMT) | 11 — Electrostatic discharge (ESD) point |
4 — USB-A port | 12 — QSFP28 port LEDs |
5 — QSFP28 ports | 13 — Reset button |
6 — Common Language Equipment Identifier (CLEI) code label | 14 — Protective earthing terminal |
7 — Fan module | 15 — Claim code label |
8 — 550-W AC power supply |
Figure 8 shows the components on the rear panel of an EX4400-24T switch with a DC power supply.
1 — Serial number ID label | 9 — Empty slot for power supply |
2 — Console port (labeled CON) | 10 — Power supply rating label |
3 — Management port (labeled MGMT) | 11 — ESD point |
4 — USB-A port | 12 — QSFP28 port LEDs |
5 — QSFP28 ports | 13 — Reset button |
6 — CLEI code label | 14 — Protective earthing terminal |
7 — Fan module | 15 — Claim code label |
8 — 550-W DC power supply |
Figure 9 shows the components on the rear panel of an EX4400-24P switch. This model supports 1050-W and 1600-W AC power supplies. The EX4400-24P switch supports 1600-W AC power supply if you have Junos OS Release 22.3R1 or later installed. We ship the switch with one 1050-W power supply. You can order the additional power supply separately. You must not install different models of power supplies in the same chassis.
1 — Serial number ID label | 9 — Empty slot for power supply |
2 — Console port (labeled CON) | 10 — Power supply rating label |
3 — Management port (labeled MGMT) | 11 — ESD point |
4 — USB-A port | 12 — QSFP28 port LEDs |
5 — QSFP28 ports | 13 — Reset button |
6 — CLEI code label | 14 — Protective earthing terminal |
7 — Fan module | 15 — Claim code label |
8 — 1050-W AC power supply |
Components on the Front and Rear Panels of EX4400-24MP Switches
Figure 10 shows the front view of an EX4400-24MP switch with 24 RJ-45 ports that support PoE-bt.
Figure 11 shows the rear view of an EX4400-24MP switch.
Figure 12 shows the components on the front panel of an EX4400-24MP switch.
1 — 100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps RJ-45 ports. These ports support PoE-bt. | 4 — Port mode LEDs (labeled SPD, DX, EN, and POE) |
2 — USB-C console port | 5 — Factory reset/mode button |
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD) | 6 — Extension module slot |
Figure 13 shows the components on the rear panel of an EX4400-24MP switch. This model supports 1600-W AC power supply if you have Junos OS Release 22.3R1 or later installed. We ship the switch with one 1050-W power supply. You can order the additional power supply separately. You must not install different models of power supplies in the same chassis.
1 — Serial number ID label | 9 — Empty slot for power supply |
2 — Console port (labeled CON) | 10 — Power supply rating label |
3 — Management port (labeled MGMT) | 11 — ESD point |
4 — USB-A port | 12 — QSFP28 port LEDs |
5 — QSFP28 ports | 13 — Reset button |
6 — CLEI code label | 14 — Protective earthing terminal |
7 — Fan module | 15 — Claim code label |
8 — 1050-W AC power supply |
Components on the Front and Rear Panels of EX4400-24X Switches
Figure 14 shows the front view of an EX4400-24X switch with 24 10GbE small form-factor pluggable (SFP)/small form-factor pluggable plus (SFP+) ports.
Figure 15 shows the rear view of an EX4400-24X switch with an AC power supply.
Figure 16 shows the components on the front panel of an EX4400-24X switch.
1 — Console port (labeled CON) | 7 — Factory reset/mode button |
2 — Management port (labeled MGMT) | 8 — Extension module slot |
3 — 24 SFP/SFP+ ports | 9 — QSFP28 ports |
4 — USB-C console port | 10 — Reset button |
5 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD) | 11 — USB-A port |
6 — Port mode LEDs (labeled SPD, DX, and EN) |
Figure 17 shows the components on the rear panel of an EX4400-24X switch with an AC power supply.
1 — Serial number ID label | 6 — Power supply rating label |
2 — CLEI code label | 7 — ESD point |
3 — Fan module | 8 — Protective earthing terminal |
4 — 550-W AC power supply | 9 — Claim code label |
5 — Empty slot for power supply |
Figure 18 shows the components on the rear panel of an EX4400-24X switch with a DC power supply.
1 — Serial number ID label | 6 — Power supply rating label |
2 — CLEI code label | 7 — ESD point |
3 — Fan module | 8 — Protective earthing terminal |
4 — 550-W DC power supply | 9 — Claim code label |
5 — Empty slot for power supply |
Components on the Front and Rear Panels of EX4400-48T and EX4400-48P Switches
Figure 19 shows the front view of an EX4400-48T switch with 48 RJ-45 ports. Figure 20 shows the front view of an EX4400-48P switch with 48 RJ-45 ports that support PoE-bt.
Figure 21 shows the rear view of an EX4400-48T and EX4400-48P switch with AC power supplies.
Figure 22 shows the rear view of an EX4400-48T switch with DC power supplies.
Figure 23 shows the components on the front panel of an EX4400-48T switch.
1 — 10/100/1000BASE-T ports | 4 — Port mode LEDs (labeled SPD, DX, and EN) |
2 — USB-C console port | 5 — Factory reset/mode button |
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD) | 6 — Extension module slot |
We’ve enabled the CLD LED feature in Junos OS Release 21.2R1.
Figure 24 shows the components on the front panel of an EX4400-48P switch.
1 — 10/100/1000BASE-T ports. These ports support PoE-bt. | 4 — Port mode LEDs (labeled SPD, DX, EN, and POE) |
2 — USB-C console port | 5 — Factory reset/mode button |
3 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD) | 6 — Extension module slot |
We enabled the CLD LED feature in Junos OS Release 21.2R1.
EX4400-48T model supports 550-W AC or DC power supplies. You must not install AC and DC power supplies in the same chassis.
Figure 25 shows the components on the rear panel of an EX4400-48T switch with an AC power supply.
1 — Serial number ID label | 9 — Empty slot for power supply |
2 — Console port (labeled CON) | 10 — Power supply rating label |
3 — Management port (labeled MGMT) | 11 — ESD point |
4 — USB-A port | 12 — QSFP28 port LEDs |
5 — QSFP28 ports | 13 — Reset button |
6 — CLEI code label | 14 — Protective earthing terminal |
7 — Fan module | 15 — Claim code label |
8 — 550-W AC power supply |
Figure 26 shows the components on the rear panel of an EX4400-48T switch with a DC power supply.
1 — Serial number ID label | 9 — Empty slot for power supply |
2 — Console port (labeled CON) | 10 — Power supply rating label |
3 — Management port (labeled MGMT) | 11 — ESD point |
4 — USB-A port | 12 — QSFP28 port LEDs |
5 — QSFP28 ports | 13 — Reset button |
6 — CLEI code label | 14 — Protective earthing terminal |
7 — Fan module | 15 — Claim code label |
8 — 550-W DC power supply |
Figure 27 shows the components on the rear panel of an EX4400-48P switch. This model supports only 1600-W AC power supply.
1 — Serial number ID label | 9 — Empty slot for power supply |
2 — Console port (labeled CON) | 10 — Power supply rating label |
3 — Management port (labeled MGMT) | 11 — ESD point |
4 — USB-A port | 12 — QSFP28 port LEDs |
5 — QSFP28 ports | 13 — Reset button |
6 — CLEI code label | 14 — Protective earthing terminal |
7 — Fan module | 15 — Claim code label |
8 — 1600-W AC power supply |
Components on the Front and Rear Panels of EX4400-48MP Switches
Figure 28 shows the front view of an EX4400-48MP switch with 48 RJ-45 ports that support PoE-bt.
Figure 29 shows the rear view of an EX4400-48MP switch.
Figure 30 shows the components on the front panel of an EX4400-48MP switch.
1 — 100-Mbps/1-Gbps/2.5-Gbps RJ-45 ports. These ports support PoE-bt. | 5 — Port mode LEDs (labeled SPD, DX, EN, and POE) |
2 — 100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps RJ-45 ports. These ports support PoE-bt. | 6 — Factory reset/mode button |
3 — USB-C console port | 7 — Extension module slot |
4 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD) |
Figure 31 shows the components on the rear panel of an EX4400-48MP switch. This model supports only 1600-W AC power supply.
1 — Serial number ID label | 9 — Empty slot for power supply |
2 — Console port (labeled CON) | 10 — Power supply rating label |
3 — Management port (labeled MGMT) | 11 — ESD point |
4 — USB-A port | 12 — QSFP28 port LEDs |
5 — QSFP28 ports | 13 — Reset button |
6 — CLEI code label | 14 — Protective earthing terminal |
7 — Fan module | 15 — Claim code label |
8 — 1600-W AC power supply |
Components on the Front and Rear Panels of EX4400-48F Switches
Figure 32 shows the front view of an EX4400-48F switch with 36 SFP ports and 12 SFP+ ports.
Figure 33 shows the rear view of an EX4400-48F switch with AC power supplies.
Figure 34 shows the rear view of an EX4400-48F switch with DC power supplies.
Figure 35 shows the components on the front panel of an EX4400-48F switch.
1 — SFP ports | 5 — Port mode LEDs (labeled SPD, DX, and EN) |
2 — SFP+ ports | 6 — Factory reset/mode button |
3 — USB-C console port | 7 — Extension module slot |
4 — Chassis status LEDs (labeled SYS, ALM, MST, and CLD) |
We enabled the CLD LED feature in Junos OS Release 21.2R1.
EX4400-48F model supports 550-W AC or DC power supplies. You must not install AC and DC power supplies in the same chassis.
Figure 36 shows the components on the rear panel of an EX4400-48F switch with an AC power supply.
1 — Serial number ID label | 9 — Empty slot for power supply |
2 — Console port (labeled CON) | 10 — Power supply rating label |
3 — Management port (labeled MGMT) | 11 — ESD point |
4 — USB-A port | 12 — QSFP28 port LEDs |
5 — QSFP28 ports | 13 — Reset button |
6 — CLEI code label | 14 — Protective earthing terminal |
7 — Fan module | 15 — Claim code label |
8 — 550-W AC power supply |
Figure 37 shows the components on the rear panel of an EX4400-48F switch with a DC power supply.
1 — Serial number ID label | 9 — Empty slot for power supply |
2 — Console port (labeled CON) | 10 — Power supply rating label |
3 — Management port (labeled MGMT) | 11 — ESD point |
4 — USB-A port | 12 — QSFP28 port LEDs |
5 — QSFP28 ports | 13 — Reset button |
6 — CLEI code label | 14 — Protective earthing terminal |
7 — Fan module | 15 — Claim code label |
8 — 550-W DC power supply |
Extension Modules
EX4400 switches provide one slot for installing an optional extension module. You can use the ports on the extension module to connect the switch to other devices. By installing an extension module, you add more ports to your switch, thereby increasing the port density of the switch. For more information about extension modules, see Extension Modules in EX4400 Switches.
Virtual Chassis
You can use the quad small form-factor pluggable 28 (QSFP28) ports to interconnect a maximum of 10 EX4400 switches to form a Virtual Chassis. On EX4400 switch models except EX4400-24X, the QSFP28 ports are on the rear panel. On the EX4400-24X model, the QSFP28 ports are on the front panel.
On EX4400 switch models except EX4400-24X, the QSFP28 ports are configured as
Virtual Chassis ports (VCPs) by default. Each of the two QSFP28 ports operates
as two logical 50-Gbps VCP interfaces. On the EX4400-24X model, you can
configure the QSFP28 ports as VCPs by using the request virtual-chassis mode network-port CLI
command.
You can operate the interconnected switches as a single, logical device with a single IP address. For more information about Virtual Chassis, see Understanding EX Series Virtual Chassis.
You can configure the QSFP28 ports as network ports and operate them as 100GbE
network ports or uplink ports by using QSFP28 transceivers and by using the CLI
command
request virtual-chassis mode
.
Channelization in EX4400 Switches
When the two QSFP28 ports on EX4400 switches are configured to operate as network ports, the ports support channelization.
-
You can install 100-Gbps transceivers and channelize each QSFP28 port into four 25-Gbps interfaces by connecting breakout cables and by using CLI configuration.
-
You can install 40-Gbps transceivers and channelize each port into four 10-Gbps interfaces by connecting breakout cables and by using CLI configuration.
See Port Settings.
EX4400 Cooling System
The cooling system in EX4400 switches consists of two fan modules for the chassis and a single built-in fan in each power supply. The airflow direction depends on the fan modules and power supplies installed in the switch. You can order fan modules and power supplies that support front-to-back airflow (air enters through the front panel of the switch) or back-to-front airflow (air enters through the rear panel of the switch). The fan modules are hot-removable and hot-insertable field-replaceable units (FRUs) installed in the rear panel of the switch. That is, you can remove and replace the fan modules without powering off the switch or disrupting switch functions.
EX4400 Power System
We ship EX4400 switches with one power supply preinstalled in the rear panel of the chassis.
EX4400-24T, EX4400-24X, EX4400-48T, and EX4400-48F switches support two 550-W AC or DC power supplies with front-to-back or back-to-front airflow directions.
EX4400-24P and EX4400-24MP switches support two 1050-W or 1600-W AC power supplies with front-to-back airflow. The models support 1600-W AC power supply if you have Junos OS Release 22.3R1 or later installed. We ship the models with one 1050-W power supply. You can order the additional power supply separately. You must not install different models of power supplies in the same chassis.
EX4400-48P and EX4400-48MP switches support two 1600-W AC power supplies with front-to-back airflow.
The power supplies are fully redundant, load-sharing, and hot-removable and hot-insertable FRUs when the second power supply is installed and running. You can remove and replace either one of the power supplies without powering off the switch or disrupting switch functions. An internal cooling system cools each power supply.
Do not mix:
-
AC and DC power supplies in the same chassis.
-
Power supplies with different airflow directions in the same chassis.
-
Fan modules with different airflow directions in the same chassis.
-
Power supplies and fan modules with different airflow directions in the same chassis.
If you install power supplies or fan modules with different airflow directions, Junos OS raises an alarm.
EX4400 Switch Models
The EX4400 switch is Juniper's fi st cloud-ready switch. EX4400-24P, EX4400-24MP, EX4400-48P, and EX4400-48MP provide PoE-bt, fast Power over Ethernet (PoE), and Perpetual PoE. EX4400 switches run on either AC or DC power and support either back-to-front or front-to-back airflow. Table 2 lists the components shipped with EX4400 switch models.
|
Model Number |
Built-In Ports |
Ports That Support PoE-bt |
Fan Modules |
Power Supply |
First Junos OS Release |
|---|---|---|---|---|---|
|
EX4400-24T |
24 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
21.1R1 |
|
EX4400-24T-AFI |
24 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
21.1R1 |
|
EX4400-24T-DC |
24 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
21.1R1 |
|
EX4400-24T-DC-AFI |
24 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
21.1R1 |
|
EX4400-24T-S |
24 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
0 |
We don't ship fan modules for this model by default; you must order two fan modules separately. |
We don't ship power supplies for this model by default; you must order them separately. |
21.1R1 |
|
EX4400-24P |
24 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
24 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle). |
A 1050-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) The model supports 1600-W AC power supply if you have Junos OS Release 22.3R1 or later installed. You can order the 1600-W power supply separately. You must not install different models of power supplies in the same chassis. |
21.1R1 |
|
EX4400-24P-S |
24 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
24 |
We don't ship fan modules for this model by default; you must order two fan modules separately. |
We don't ship power supplies for this model by default; you must order them separately. |
21.1R1 |
|
EX4400-24MP |
24 100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps RJ-45 ports and 2 100GbE QSFP28 ports |
24 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 1050-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) The model supports 1600-W AC power supply if you have Junos OS Release 22.3R1 or later installed. You can order the 1600-W power supply separately. You must not install different models of power supplies in the same chassis. |
21.2R1 |
|
EX4400-24MP-S |
24 100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps RJ-45 ports and 2 100GbE QSFP28 ports |
24 |
We don't ship fan modules for this model by default; you must order two fan modules separately. |
We don't ship power supplies for this model by default; you must order them separately. |
21.2R1 |
|
EX4400-24X |
24 1GbE/10GbE SFP/SFP+ ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
23.1R1 |
|
EX4400-24X-AFI |
24 1GbE/10GbE SFP/SFP+ ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
23.1R1 |
|
EX4400-24X-DC |
24 1GbE/10GbE SFP/SFP+ ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
23.1R1 |
|
EX4400-24X-DC-AFI |
24 1GbE/10GbE SFP/SFP+ ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
23.1R1 |
|
EX4400-48T |
48 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
21.1R1 |
|
EX4400-48T-AFI |
48 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
21.1R1 |
|
EX4400-48T-DC |
48 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
21.1R1 |
|
EX4400-48T-DC-AFI |
48 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
0 |
Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
21.1R1 |
|
EX4400-48T-S |
48 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
0 |
We don't ship fan modules for this model by default; you must order two fan modules separately. |
We don't ship power supplies for this model by default; you must order them separately. |
21.1R1 |
|
EX4400-48P |
48 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
48 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 1600-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
21.1R1 |
|
EX4400-48P-S |
48 10/100/1000BASE-T ports and 2 100GbE QSFP28 ports |
48 |
We don't ship fan modules for this model by default; you must order two fan modules separately. |
We don't ship power supplies for this model by default; you must order them separately. |
21.1R1 |
|
EX4400-48MP |
36 100-Mbps/1-Gbps/2.5-Gbps RJ-45 ports, 12 100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps RJ-45 ports, and 2 100GbE QSFP28 ports |
48 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 1600-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
21.2R1 |
|
EX4400-48MP-S |
36 100-Mbps/1-Gbps/2.5-Gbps RJ-45 ports, 12 100-Mbps/1-Gbps/2.5-Gbps/5-Gbps/10-Gbps RJ-45 ports, and 2 100GbE QSFP28 ports |
48 |
We don't ship fan modules for this model by default; you must order two fan modules separately. |
We don't ship power supplies for this model by default; you must order them separately. |
21.2R1 |
|
EX4400-48F |
36 SFP ports, 12 SFP+ ports, and 2 100GbE QSFP28 ports |
0 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 550-W AC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
21.1R1 |
|
EX4400-48F-AFI |
36 SFP ports, 12 SFP+ ports, and 2 100GbE QSFP28 ports |
0 |
Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
A 550-W AC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
21.1R1 |
|
EX4400-48F-DC |
36 SFP ports, 12 SFP+ ports, and 2 100GbE QSFP28 ports |
0 |
Two fan modules with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
A 550-W DC power supply with front-to-back airflow (indicated by the AIR OUT label and the Juniper Gold handle) |
21.1R1 |
|
EX4400-48F-DC-AFI |
36 SFP ports, 12 SFP+ ports, and 2 100GbE QSFP28 ports |
0 |
Two fan modules with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
A 550-W DC power supply with back-to-front airflow (indicated by the AIR IN label and the Juniper Azure Blue handle) |
21.1R1 |
|
EX4400-48F-S |
36 SFP ports, 12 SFP+ ports, and 2 100GbE QSFP28 ports |
0 |
We don't ship fan modules for this model by default; you must order two fan modules separately. |
We don't ship power supplies for this model by default; you must order them separately. |
21.1R1 |
Extension modules and transceivers are not part of the shipping configuration. If you want to purchase any of these components, power supplies, or fan modules for your switch, you must order them separately and register them (see Register Products—Mandatory to Validate SLAs).
EX4400 Switch Hardware and CLI Terminology Mapping
This topic describes the hardware terms used in EX4400 switch documentation and the corresponding terms used in the Junos OS CLI (see Table 3).
Hardware Item (CLI) |
Description (CLI) |
Value |
Item In Documentation |
Additional Information |
|---|---|---|---|---|
Chassis |
One of the following:
|
– |
Switch chassis |
|
Routing Engine (n) |
One of the following:
|
n is a value in the range 0 through 9.
|
Routing Engine |
– |
FPC (n) |
Abbreviated name of the Flexible PIC Concentrator (FPC) One of the following:
|
n is a value in the range 0 through 9. |
||
In a standalone switch, the default value is 0. |
In this case, FPC refers to the switch itself. |
|||
In a Virtual Chassis configuration, the values correspond to the assigned member IDs of switches in the Virtual Chassis. |
In this case, the FPC number refers to the member ID assigned to the switch. |
|||
PIC (n) |
Abbreviated name of the Physical Interface Card (PIC) |
n is a value in the range 0 through 2. |
||
One of the following:
|
PIC 0 |
PIC 0 stands for built-in network ports numbered 0 through 23 or 0 through 47 |
||
One of the following:
|
PIC 1 |
QSFP28 ports numbered 0 and 1 |
||
One of the following:
|
PIC 2 |
Extension module installed in the switch |
||
Xcvr (n) |
Abbreviated name of the transceiver |
n is a value equivalent to the number of the port in which the transceiver is installed. |
Optical transceivers |
Pluggable Transceivers and Cables Supported on EX4400 Switches |
Power supply (n) |
One of the following:
|
n has a value 0 or 1, corresponding to the power supply slot number. |
AC power supply or DC power supply |
|
Fan tray |
One of the following:
|
n has a value 0 or 1, corresponding to the fan module slot number. |
Fan module |
Chassis Physical Specifications for EX4400 Switches
The EX4400 switch chassis is a rigid sheet-metal structure that houses all components of the switch. Table 4 summarizes the physical specifications of the EX4400 switch chassis.
Description |
Value |
|---|---|
Chassis height |
1.72 in. (4.37 cm) |
Chassis width |
17.39 in. (44.17 cm) The outer edges of the front-mounting brackets extend the width to 19 in. (48.2 cm). |
Chassis depth |
|
Weight |
We ship the switch preinstalled with one power supply, two fan modules, one cover for the empty extension module slot, and one cover for the empty power supply slot. |
You can mount an EX4400 switch:
On a two-post rack or on two posts of a 19-in. four-post rack by using the two-post mounting brackets provided with the switch.
Flush with the front posts of a 19-in. four-post rack by using a separately orderable four-post rack mount kit.
In a recessed position inside a 19-in. four-post rack by using the recessed-mounting brackets provided with a separately orderable four-post rack mount kit.
On a desk or other level surface by using the rubber feet provided with the switch.
On a wall by using a separately orderable wall mount kit.
To know the part numbers for ordering the separately orderable mounting kits, see the EX4400 Switches Datasheet.
Field-Replaceable Units in EX4400 Switches
Field-replaceable units (FRUs) are components that you can replace at your site. The FRUs in EX4400 switches are hot-removable and hot-insertable: You can remove and replace them without powering off the switch or disrupting switch functions. The following are the FRUs in EX4400 switches:
Power supplies
Fan modules
Extension modules
Transceivers
If you have a Juniper J-Care service contract, register any addition, change, or upgrade of hardware components at https://www.juniper.net/customers/support/tools/updateinstallbase/. Failure to do so can result in significant delays if you need replacement parts. This note does not apply if you replace existing components with the same type of component.
Extension Modules in EX4400 Switches
EX4400 switches provide a slot to install an optional extension module. Extension modules are hot-insertable and hot-removable field-replaceable units (FRUs): You can remove and replace them without powering off the switch or disrupting switch functions.
You can install an extension module horizontally in the extension module slot on the front panel of the switch. You can use the ports on the extension module to connect the switch to other devices. By installing an extension module, you add more ports to your switch, thereby increasing the port density of the switch.
Table 5 shows the extension modules supported on EX4400 switches, their descriptions, and the first Junos OS release the extension modules support.
|
Extension Module |
Description |
First Junos OS Release |
||||
|---|---|---|---|---|---|---|
|
1x100GbE QSFP28 extension module (model number: EX4400-EM-1C) |
The 1x100GbE QSFP28 extension module supports Media Access Control Security (MACsec) with AES-256 encryption. You can install one 40GbE QSFP+ transceiver or one 100GbE QSFP28 transceiver in the extension module. You can channelize the port on the extension module to support 10-Gbps and 25-Gbps speeds by connecting a breakout cable and by using CLI configuration. Figure 38: 1x100GbE QSFP28 Extension Module for EX4400
Switches
|
23.1R1 Note:
EX4400 switches except EX4400-24X require System CPLD Firmware 1.0 or later installed in them to support the 1x100GbE QSFP28 extension module. EX4400-24X switches require System CPLD Firmware 0.6 or later installed in them to support the 1x100GbE QSFP28 extension module. See Installing and Upgrading Firmware and request system firmware upgrade for steps to upgrade the firmware. |
||||
|
4x10GbE SFP+ extension module (model number: EX4400-EM-4S) |
You can install up to four 1GbE SFP transceivers or 10GbE SFP+ transceivers in the 4x10GbE SFP+ extension module. Do not install SFP transceivers and SFP+ transceivers in the extension module at the same time. Figure 39: 4x10GbE SFP+ Extension Module for EX4400 Switches
|
21.1R1 |
||||
|
4x25GbE SFP28 extension module (model number: EX4400-EM-4Y) |
The 4x25GbE SFP28 extension module supports Media Access Control Security (MACsec) with AES-256 encryption. You can install up to four 10GbE SFP+ transceivers or four 25GbE SFP28 transceivers in the extension module. Do not install SFP+ transceivers and SFP28 transceivers in the extension module at the same time. Figure 40: 4x25GbE SFP28 Extension Module for EX4400
Switches
|
21.1R1 |
Extension modules and transceivers are not part of the shipping configuration. You must order them separately.
When you install an extension module in the switch or replace an extension module
with another extension module, the switch detects the extension module. The output
of the show chassis pic fpc-slot slot number pic-slot
slot number command displays the operating speed
of the extension modules. You must configure the extension module to operate at the
speed of the transceiver that you plan to install in the extension module. The
switch detects the transceiver that you install in the extension module port and
displays the transceiver details in the output of the show chassis
hardware command.
The 1x100GbE QSFP28 extension module operates in 100-gigabit mode by default. It
operates in 40-gigabit mode if you insert a 40GbE QSFP+ transceiver. When the
extension module is operating in 100-gigabit mode, you can channelize the port and
configure it to operate in 25-gigabit mode by using the set chassis fpc 0
pic-slot 2 port 0 channel-speed 25g command and a 4x25GbE breakout
cable. When the extension module is operating in 40-gigabit mode, you can channelize
the port and configure it to operate in 10-gigabit mode by using the set
chassis fpc 0 pic-slot 2 port 0 channel-speed 10g command and a 4x10GbE
breakout cable.
The 4x25GbE SFP+ extension module operates in 25-gigabit mode by default. You can
configure all the ports in the extension module to operate in 10-gigabit mode by
using the set chassis fpc 0 pic-slot 2 port 0 speed 10g command.
You can revert to the 25-gigabit mode by using the set chassis fpc 0
pic-slot 2 port 0 speed 25g command or the delete chassis fpc 0
pic-slot 2 port 0 speed 10g command. All the ports in the extension
module can operate in the same mode only.
The 4x10GbE SFP+ extension module operates in 10-gigabit mode by default. You can
configure all the ports in the extension module to operate in 1-gigabit mode by
using the set chassis fpc 0 pic-slot 2 port 0 speed 1g command. You
can revert to the 10-gigabit mode by using the set chassis fpc 0 pic-slot 2
port 0 speed 10g command or the delete chassis fpc 0 pic-slot 2
port 0 speed 1g command. All the ports in the extension module can
operate in the same mode only.
Each port on the extension modules has a pair of LEDs that indicate the link activity and status of the port. See LEDs on the RJ-45, SFP, and SFP+ Network Ports, QSFP28 Ports, and Extension Module Ports on EX4400 Switches for details about the LEDs.