Juniper QFX3500, Hardware Documentation

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Table 6: Components in 48-Port EX4300 Switches (continued)
Supported Uplink
Modules
Power Supply
Shipped by
Default Fan Modules
Number
of PoE-
enabled
Ports Built-In Ports Switch Models
Ethernet
transceiver. If you
configure both the
ports on the uplink
module to operate
at 100-Gbps speed,
the four QSFP+
ports on the switch
are disabled.
The switch supports
the 4-port 1-Gigabit
Ethernet/10-Gigabit
Ethernet SFP+
uplink module
(model number:
EX-UM-4SFPP-MR)
from Junos OS
Release 18.2R1
onwards. Starting in
Junos OS Release
19.1R1, you can
install SFP
transceivers in the
uplink module. In
Junos OS Release
18.2R1 through
Junos OS Release
18.4R1, the uplink
module supported
only SFP+
transceivers.
By default, the built-in QSFP+ ports are dedicated VCPs. In 48-port EX4300 switches except EX4300-48MP
and EX4300-48MP-S switches, you can use the QSFP+ ports as network ports or as VCPs. You can also
use the SFP+ uplink module ports to connect members of a Virtual Chassis or a VCF across multiple wiring
closets by configuring these ports as VCPs.
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