Uplink Modules in EX4200 Switches

EX4200 switches support three types of uplink modules:

• SFP uplink module—Provides four ports for 1-gigabit small form-factor pluggable (SFP) transceivers.
• 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.
• XFP uplink module—Provides two ports for 10-gigabit small form-factor pluggable (XFP) transceivers.

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 those ports.

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.

This topic describes:

SFP Uplink Module

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

Figure 1: SFP Uplink Module

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

SFP+ uplink modules 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+ Uplink Module (CLI Procedure).

By default, the SFP+ uplink module operates in the 10-gigabit mode and supports 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 an SFP+ uplink module are different, it is shown in the output of show chassis pic fpc-slot slot number pic-slot 1.

Figure 2 shows the SFP+ uplink module.

Figure 2: SFP+ Uplink Module

Transceivers are supported in the uplink module’s ports as follows:

• 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 2).

Note: When an SFP+ 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 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 has an LED on the faceplate (labeled Operating mode LED in Figure 2) 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 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.

XFP Uplink Module

Figure 3 shows the XFP uplink module, which provides two ports for 10-gigabit XFP transceivers.

Figure 3: XFP Uplink Module

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.