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EX4200 Chassis

 

Front Panel of an EX4200 Switch

The front panel of an EX4200 switch consists of the following components:

  • Network ports—depending on the switch model, either:

    • 10/100/1000Base-T Gigabit Ethernet ports, some or all of which are enabled for Power over Ethernet (PoE)

    • 100Base-FX/1000Base-X SFP ports for use with fiber-optic connections

  • Uplink module ports—SFP, SFP+, or XFP ports (Installing the uplink module is an optional.)

  • LCD panel and the LCD navigation buttons

  • Chassis status LEDs

  • Network port LEDs

Figure 1 shows the front panel of an EX4200 switch with 48 Gigabit Ethernet ports. Figure 2 shows the front panel of an EX4200 switch with 24 Gigabit Ethernet ports. Figure 3 shows the front panel of an EX4200-24F switch with 24 SFP ports for use with fiber-optic connectors.

Figure 1: EX4200 Switch with 48 Gigabit Ethernet Ports
EX4200 Switch
with 48 Gigabit Ethernet Ports
Figure 2: EX4200 Switch with 24 Gigabit Ethernet Ports
EX4200 Switch
with 24 Gigabit Ethernet Ports
Figure 3: EX4200-24F Switch with 24 SFP Ports
EX4200-24F Switch with
24 SFP Ports

Rear Panel of an EX4200 Switch

The rear panel of the EX4200 switch accomdates the following components:

  • Fan tray

  • Virtual Chassis ports (VCPs)

  • USB port

  • Temperature shutdown LED

  • Management Ethernet port

  • Console port

  • ESD point

  • Power supply or power supplies

Figure 4 shows the rear panel of an EX4200 switch with power supplies and fan tray installed. The rear panel of all the EX4200 switches except EX4200-24F-S and EX4200-48T-S switches are similar. All EX4200 switches except the EX4200-24F-S and EX4200-48T-S switches are shipped with the power supplies and fan tray pre-installed in the rear panel of the switch. The power supplies and the fan tray for the EX4200-24F-S and EX4200-48T-S models are not shipped by default; you must order them separately and install them in the rear panel. The 320 W AC power supply and the 190 W DC are flush with the chassis. The 600 W AC power supply and 930 W AC power supply extend out of the chassis by 2.25 in. Power cord retainer clips extend out of the power supply by 3 in.

Figure 4: EX4200 Switch Rear Panel
EX4200 Switch
Rear Panel

LCD Panel in EX4200 Switches

The LCD panel on the front panel of the switch shows two lines of text, each of which can contain a maximum of 16 characters. The LCD panel displays a variety of information about the switch and also provides a menu to perform basic operations such as initial setup and reboot.

There are two navigation buttons—Menu and Enter—to the right of the LCD panel.

See Figure 5.

Figure 5: LCD Panel
LCD Panel

You can configure the second line of the LCD panel to display a custom message. If the LCD panel is configured to display a custom message, the Menu button and the Enter button are disabled. See Configuring the LCD Panel on EX Series Switches (CLI Procedure).

The LCD panel has a backlight. If the LCD panel is idle for 60 seconds, the backlight turns off. You can turn on the backlight by pressing the Menu or Enter button once. After turning on the backlight, you can toggle between the LCD panel menus by pressing the Menu button and navigate through the menu options by pressing the Enter button.

Note

The chassis viewer in the J-Web interface also displays the LCD panel. From the J-Web interface, you can view real-time status information in the LCD panel. See Dashboard for EX Series Switches.

LCD Panel Modes

The LCD panel operates in four modes: boot, idle, status, and maintenance.

The LCD panel operates in boot mode during switch reboot. The boot mode displays the key milestones in the switch boot process. The boot mode does not have any menu options. After the boot process is complete, the LCD panel automatically reverts to the Idle menu.

In an EX4200 switch that is not a member of a Virtual Chassis, the first line of the LCD panel displays the slot number, the role of the switch, and hostname. For a standalone EX4200 switch, the slot number is always 00 and the role is always RE (for master).

In an EX4200 switch that is a member of a Virtual Chassis, the first line of the LCD panel displays:

  • The slot number (the member ID for the Virtual Chassis member)

  • Role of the switch in a Virtual Chassis (RE for master, BK for backup, and LC for linecard member)

  • Hostname

In the idle mode, the second line displays the mode of the network ports’ Status LED and the number of chassis alarms. The number of alarms is updated every second.

In the status mode, the second line displays:

  • Virtual Chassis port (VCP) status (for an EX4200 switch that is a member of a Virtual Chassis)

  • Status of the power supply

  • Status of the fan and temperature

  • Version of Junos OS for EX Series switches loaded on the switch

In the maintenance mode, the second line displays one of the following options that you can use to configure and troubleshoot the switch:

  • System halt

  • System reboot

  • Load rescue

  • Request VC port (for an EX4200 switch that is a member of a Virtual Chassis)

  • Factory default

  • System EZSetup

LCD Panel Menus

The LCD panel has three menus: Idle, Status, and Maintenance. Toggle between the LCD panel menus by pressing the Menu button. Navigate through the menu options by pressing the Enter button.

Table 1 describes the LCD panel menu options.

Table 1: LCD Panel Menu Options

Menu

Description

IDLE

In the Idle menu:

STATUS

The Status menu has the following options:

  • Show VCP status—Choose one of the following:

    • Press the Enter button to display the Virtual Chassis port (VCP) status: Up, Down, Disabled.

      Note: This option is available only for an EX4200 switch that is a member of a Virtual Chassis configuration. It is not available for an EX3200 switch.

    • Press the Menu button to go to the next option in the Status menu.

  • Show PSU status—Choose one of the following:

    • Press the Enter button to display the status of the power supply: OK, Failed, Absent.

    • Press the Menu button to go to the next option in the Status menu.

  • Show Environment status—Choose one of the following:

    • Press the Enter button to display the status of the fan and temperature:

      • Fan status: OK, Failed, Absent

      • Temp status: OK, High, Shutdown

    • Press the Menu button to go to the next option in the Status menu.

  • Show Junos version—Choose one of the following:

    • Press the Enter button to display the version of Junos OS for EX Series switches loaded on the switch.

    • Press the Menu button to go to the next option in the Status menu.

  • EXIT STAT MENU?—Choose one of the following:

    • Press the Enter button to exit the Status menu. Then press the Menu button to go to the Maintenance menu.

    • On an EX4200 switch that is a member of a Virtual Chassis configuration, press the Menu button to return to the Show VCP status option.

      Note: This option is available only for an EX4200 switch that is a member of a Virtual Chassis configuration. It is not available for an EX3200 switch.

If you do not want users to use Status menu options, disable the entire menu or individual menu options. See Configuring the LCD Panel on EX Series Switches (CLI Procedure).

MAINT (Maintenance Menu)

The Maintenance menu has the following options to configure and troubleshoot the switch:

  • SYSTEM HALT?—Choose one of the following:

    • Press the Enter button to halt the switch. Press the Enter button again to confirm the halt.

    • Press the Menu button to go to the next option in the Maintenance menu.

  • SYSTEM REBOOT?—Choose one of the following:

    • Press the Enter button to reboot the switch. Press the Enter button again to confirm the reboot.

    • Press the Menu button to go to the next option in the Maintenance menu.

  • LOAD RESCUE?—Choose one of the following:

    • Press the Enter button to roll back the switch to the rescue configuration. Press the Enter button again to confirm the rollback.

    • Press the Menu button to go to the next option in the Maintenance menu.

  • REQUEST VC PORT?—Choose one of the following:

    • Press the Enter button to configure an uplink module port or an EX4200-24F network port to be a Virtual Chassis port (VCP) or to delete a VCP from the switch configuration (when you delete the VCP, the port is reset to an uplink module port or an EX4200-24F network port).

      Note: This option is available only for an EX4200 switch that is a member of a Virtual Chassis configuration. It is not available for an EX3200 switch.

    • Press the Menu button to go to the next option in the Maintenance menu.

  • FACTORY DEFAULT?—Choose one of the following:

    • Press the Enter button to restore the switch to the factory default configuration. Press the Enter button again to confirm the restoration.

    • Press the Menu button to go to the next option in the Maintenance menu.

  • ENTER EZSETUP?—Choose one of the following:

    • Press the Enter button to launch EZSetup. Press the Enter button again to confirm the launch.

      Note: You can use the ENTER EZSETUP option only if the switch is in the factory default configuration.

      For information about EZSetup, see Connecting and Configuring an EX Series Switch (J-Web Procedure).

    • Press the Menu button to go to the next option in the Maintenance menu.

  • EXIT MAINT MENU?—Choose one of the following:

    • Press the Enter button to exit the Maintenance menu. Then press the Menu button to go to the Idle menu.

    • Press the Menu button to go to the System Halt option.

If you do not want users to use Maintenance menu options, disable the entire menu or individual menu options. See Configuring the LCD Panel on EX Series Switches (CLI Procedure).

EX4200 switches support four types of uplink modules:

  • SFP uplink module—Provides four ports for 1-gigabit small form-factor pluggable (SFP) transceivers. The model number of the uplink module is EX-UM-4SFP.

  • SFP+ uplink module—Provides two ports for 10-gigabit small form-factor pluggable (SFP+) transceivers when configured to operate in 10-gigabit mode or four ports for 1-gigabit small form-factor pluggable (SFP) transceivers when configured to operate in 1-gigabit mode. The model number of the uplink module is EX-UM-2X4SFP.

  • SFP+ Media Access Control Security (MACsec) uplink module—Provides two ports for 10-gigabit small form-factor pluggable (SFP+) transceivers when configured to operate in 10-gigabit mode or four ports for 1-gigabit small form-factor pluggable (SFP) transceivers when configured to operate in 1-gigabit mode. All four ports on the uplink module are MACsec-capable. The model number of the uplink module is EX-UM-2X4SFP-M.

  • XFP uplink module—Provides two ports for 10-gigabit small form-factor pluggable (XFP) transceivers. The model number of the uplink module is EX-UM-2XFP.

Note

When a new uplink module is installed in the switch or an existing uplink module is replaced with another uplink module, the switch detects the newly installed uplink module. The switch creates the required interfaces if the uplink module has transceivers in its ports and when new transceivers are installed in uplink module ports.

Note

The packet forwarding process (pfem) restarts and causes traffic loss, if you:

  • Install an uplink module (SFP, SFP+, SFP+ MACsec, or XFP)

  • Replace an existing uplink module with another uplink module

  • Change the operating mode of an SFP+ or an SFP+ MACsec uplink module (10-gigabit to 1-gigabit or 1-gigabit to 10-gigabit) installed in the switch

When connecting uplink module ports, you can install an SFP uplink module at one end of the connection and install an SFP+ uplink module configured to operate in the 1-gigabit mode at the other end. Likewise, you can install an XFP uplink module at one end of the connection and install an SFP+ uplink module configured to operate in the 10-gigabit mode at the other end.

SFP Uplink Module

Figure 6 shows the SFP uplink module, which provides four ports for 1-gigabit SFP transceivers.

SFP uplink modules are shipped with dust covers preinstalled in the ports.

The SFP uplink module requires Junos OS for EX Series switches, Release 9.0 or later.

SFP+ Uplink Module and SFP+ MACsec Uplink Module

The SFP+ uplink module and the SFP+ MACsec uplink module can be used for either SFP+ or SFP transceivers. You configure the operating mode on the module to match the type of transceiver you want to use—for SFP+ transceivers, you configure the 10-gigabit operating mode, and for SFP transceivers, you configure the 1-gigabit operating mode. See Setting the Mode on an SFP+ or SFP+ MACSec Uplink Module .

By default, the SFP+ uplink module and the SFP+ MACsec uplink module operate in the 10-gigabit mode and support only SFP+ transceivers. If you have not changed the module from the default setting and you want to use SFP+ transceivers, you do not need to configure the operating mode.

If the operating mode and the configured mode for the uplink module are different, it is shown in the output of show chassis pic fpc-slot slot number pic-slot 1.

Figure 7 shows the SFP+ uplink module and the SFP+ MACsec uplink module.

The following transceivers can be installed in the uplink module ports:

  • SFP+ transceivers are supported in ports 0 and 2.

  • SFP transceivers are supported in all four ports.

The ports that support SFP+ transceivers are labeled 10 G on the uplink module’s faceplate (see Figure 7).

Note

When an SFP+ uplink module or an SFP+ MACsec uplink module is operating in 10-gigabit mode:

  • Only the 10-gigabit ports (ports 0 and 2) are enabled.

  • You can use only SFP+ transceivers in those ports.

When an SFP+ uplink module or an SFP+ MACsec uplink module is operating in 1-gigabit mode:

  • All four ports are enabled.

  • You can use only SFP transceivers in all four ports.

The SFP+ uplink module and the SFP+ MACsec uplink module have an LED on the faceplate (labeled Operating mode LED in Figure 7) that indicates the operating mode. If the uplink module is operating in the 10-gigabit mode, the LED is lit. If the uplink module is operating in the 1-gigabit mode, the LED is unlit.

SFP+ uplink modules and the SFP+ MACsec uplink modules are shipped with dust covers preinstalled in the ports.

The SFP+ uplink module requires Junos OS for EX Series switches, Release 9.4 or later. The SFP+ MACsec uplink module requires Junos OS for EX Series switches, Release 13.2X50-D10 or later.

XFP Uplink Module

Figure 8 shows the XFP uplink module, which provides two ports for 10-gigabit XFP transceivers.

XFP uplink modules are shipped with a dust cover preinstalled in one port.

The XFP uplink module requires Junos OS for EX Series switches, Release 9.0 or later.

Chassis Status LEDs in EX4200 Switches

The front panel of an EX4200 switch has three LEDs on the far right side of the panel, next to the LCD panel (see Figure 9).

Figure 9: Chassis Status LEDs in an EX4200 Switch
Chassis Status
LEDs in an EX4200 Switch

Table 2 describes the chassis status LEDs in an EX4200 switch, their colors and states, and the status they indicate. You can view the colors of the three LEDs remotely through the CLI by issuing the operational mode command show chassis lcd.

Table 2: Chassis Status LEDs in an EX4200 Switch

LED Label

Color

State and Description

ALM (Alarm)

Unlit

There is no alarm or the switch is halted.

Red

There is a major alarm.

Note: When you connect power to the switch, the Alarm (ALM) LED lights red. This behavior is normal. Plugging an active Ethernet cable into the management (MGMT) port on the switch completes the network link and turns off the ALM LED. (See Connecting a Device to a Network for Out-of-Band Management.)

Connecting the switch to a dedicated management console instead of a network does not affect the ALM LED. The LED remains red until the switch is connected to a network.

Amber

There is a minor alarm.

Note: The Alarm (ALM) LED lights amber if you commit a configuration to make it active on the switch and do not also create a rescue configuration to back it up. To save the most recently committed configuration as the rescue configuration, enter the operational mode command request system configuration rescue save.

SYS (System)

Green

  • On steadily—Junos OS for EX Series switches has been loaded on the switch.

  • Blinking—The switch is booting.

  • Off—The switch is powered off or is halted.

MST (Master)

Green

In a standalone EX4200 switch:

  • On steadily—The switch is functioning normally.

  • Off—The switch is powered off or is halted.

In a Virtual chassis configuration:

  • On steadily—The switch is the master in the Virtual Chassis configuration.

  • Blinking—The switch is the backup in the Virtual Chassis configuration.

  • Off—The switch is a linecard member in the Virtual Chassis configuration or is halted.

A major alarm (red) indicates a critical error condition that requires immediate action.

A minor alarm (amber) indicates a noncritical condition that requires monitoring or maintenance. A minor alarm that is left unchecked might cause interruption in service or performance degradation.

Note

The amber glow of the Alarm LED that indicates a minor alarm closely resembles the red glow that indicates a major alarm.

All three LEDs can be lit simultaneously.

Management Port LEDs in EX4200 Switches

The management port on EX4200 switches has two LEDs that indicate link/activity and port status (see Figure 10). The management port is set to full-duplex and the speed is set to 100 Mbps.

Figure 10: LEDs on the Management Port on an EX4200 Switch
LEDs on the Management
Port on an EX4200 Switch

Table 3 describes the Link/Activity LED.

Table 3: Link/Activity LED on the Management Port on EX4200 Switches

LED

Color

State and Description

Link/Activity

Green

  • Blinking—The port and the link are active, and there is link activity.

  • On steadily—The port and the link are active, but there is no link activity.

  • Off—The port is not active.

Table 4 describes the Status LED (administrative status).

Table 4: Status LED on the Management Port on EX4200 Switches

LED

Color

State and Description

Status

Green

  • On steadily—Administrative status is enabled.

  • Off—Administrative status is disabled.

Network Port LEDs in EX4200 Switches

Each network port on the switch has two LEDs. The four figures in this topic show the location of those LEDs:

  • Figure 11 shows the location of the LEDs on the network ports on the front panel.

  • Figure 12 shows the location of the LEDs on the uplink module ports on the SFP uplink module.

  • Figure 13 shows the location of the LEDs on the uplink module ports on the SFP+ and SFP+ MACsec uplink modules.

  • Figure 14 shows the location of the LEDs on the uplink module ports on the XFP uplink module.

Figure 11: LEDs on the Network Ports on the Front Panel
LEDs on the Network
Ports on the Front Panel
Figure 12: LEDs on the Uplink Module Ports on the SFP Uplink Module
LEDs on the Uplink
Module Ports on the SFP Uplink Module
Figure 13: LEDs on the Uplink Module Ports on the SFP+ and SFP+ MACsec Uplink Modules
LEDs on the
Uplink Module Ports on the SFP+ and SFP+ MACsec Uplink Modules
Figure 14: LEDs on the Uplink Module Ports on the XFP Uplink Module
LEDs on the Uplink
Module Ports on the XFP Uplink Module

The LEDs labeled Link/Activity LED in Figure 11, Figure 12, Figure 13, and Figure 14 indicate link activity. The LEDs labeled Status LED in Figure 11, Figure 12, Figure 13, and Figure 14 indicate the status of one of the four port parameters. The port parameters are administrative status, duplex mode, Power over Ethernet (PoE) status, and speed.

Table 5 describes the Link/Activity LED.

LED

Color

State and Description

Link/Activity

Green

  • Blinking—The port and the link are active, and there is link activity.

  • On steadily—The port and the link are active, but there is no link activity.

  • Off—The port is not active.

Table 6 describes the Status LED. From the Idle menu of the LCD, use the Enter button on the LCD panel to toggle between the ADM, DPX, POE, and SPD indicators.

Table 6: Status LED on Network Ports

LED

LCD Indicator

State and Description

Status

LED: ADM

Indicates the administrative status (enabled or disabled). The status indicators are:

  • Green—Administrative status enabled.

  • Unlit—Administrative status disabled.

LED: DPX

Indicates the duplex mode.

The uplink module ports are always set to full-duplex; therefore, the LED is always green.

The status indicators for network ports on the front panel are:

  • Green—Port is set to full-duplex mode.

  • Unlit—Port is set to half-duplex mode.

LED: MACsec

Indicates the MACsec status (enabled or disabled). MACsec can be enabled only if you have installed the SFP+ MACsec uplink module. The status indicators are:

  • Green—MACsec is enabled on the port.

  • Unlit—MACsec is disabled on the port.

LED: POE

Indicates the PoE status on switches with PoE-enabled ports.

Here the term POE refers to both PoE and PoE+ as applicable.

PoE is not enabled on uplink module ports; therefore, the LED for those ports is always unlit.

The status indicators for network ports on the front panel are:

  • Green—PoE is enabled on the port.

  • Amber—PoE is enabled on the port, but no power is drawn from the port because of one of the following:

    • No device that draws power from the port is connected to the port.

    • A device that draws power from the port is connected to the port, but the device is not drawing any power from the port.

  • Unlit—PoE is not enabled on the port.

LED: SPD

Indicates the speed.

The speed indicators for network ports on the front panel are:

  • One blink per second—10 Mbps

  • Two blinks per second—100 Mbps

  • Three blinks per second—1000 Mbps

The speed indicators for network ports on the SFP uplink module are:

  • Green—1000 Mbps

  • Unlit—10/100 Mbps

The speed indicators for network ports on the SFP+ and SFP+ MACsec uplink module are:

  • Green—The speed of the transceiver installed in the port is the same as the speed at which the uplink module port is configured to operate.

  • Unlit—The speed of the transceiver installed in the port is not the same as the speed at which the uplink module port is configured to operate.

The speed of the XFP uplink module ports is always 10 Gbps, which is also the speed of XFP transceivers, therefore, this LED is always green on an XFP uplink module.