Sfp Uplink Module - Juniper EX4200 Hardware Manual

(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 on page 35 shows the SFP uplink module, which provides four ports for 1-gigabit SFP transceivers.
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