Juniper EX4300 Series User Manual

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 mulple wiring closets by conguring these ports as VCPs.
In EX4300-48MP and EX4300-48MP-S switches, you can use only the built-in QSFP+ ports as VCPs to
connect the switch in a Virtual Chassis. You cannot congure the ports on the uplink module in
EX4300-48MP and EX4300-48MP-S switches to Virtual Chassis ports (VCPs). You cannot congure the
built-in QSFP+ ports as network ports.
NOTE: EX4300-48MP switches can be a part of an EX4300 Virtual Chassis with other EX4300
switches only. If you want to create a Virtual Chassis comprising EX4300-48MP switch and other
EX4300 switches, you must connect it to a 40-Gbps port on the other EX4300 switches in the
Virtual Chassis conguraon. In a Virtual Chassis conguraon comprising EX4300-48MP
switches, EX4300 switches can be congured only in the line card role.
For more informaon about Virtual Chassis, see Understanding EX Series Virtual Chassis. For more
informaon about VCFs, see Virtual Chassis Fabric Overview.
Uplink Modules
EX4300 switches provide one slot for installing an oponal uplink module. You can use the uplink
module ports to connect the switch to other devices. You can also congure these ports on EX4300
switches except EX4300-48MP and EX4300-48MP-S switches as VCPs and use them to interconnect
EX4300 switches to form a Virtual Chassis or a VCF conguraon by using SFP+ transceivers.
NOTE: You cannot congure the ports on the uplink module in EX4300-48MP and
EX4300-48MP-S switches as Virtual Chassis ports (VCPs).
Table 4 on page 19 lists the uplink modules supported on 24-port and 48-port EX4300 switches except
EX4300-48MP and EX4300-48MP-S switches. Table 5 on page 19 lists the uplink modules supported
on 32-port EX4300 switch models. Table 6 on page 20 lists the uplink module supported on
EX4300-48MP and EX4300-48MP-S switches.
18

Juniper EX4300 Series Specifications

General

Product Series	EX4300 Series
Power Consumption	Varies by model and configuration
Virtual Chassis Technology	Up to 10 switches
Software	Junos OS
Ports	24-port and 48-port models
10GBASE SFP+ Ports	Up to 8 ports
40GBASE QSFP+ Ports	2
Uplink Ports	Up to 4 ports
Jumbo Frames	Up to 9216 bytes
Operating Temperature	0°C to 45°C
Relative Humidity	5% to 90% noncondensing
Input Voltage	100 to 240V AC
Power Supply	AC or DC
Power Supply Options	AC or DC
Stacking	Yes
Layer 2 Features	Includes VLAN, STP, RSTP, MSTP, LACP
Layer 3 Features	OSPF, BGP
Management	CLI, Web GUI, SNMP
Security Features	DHCP snooping
QoS	8 queues per port, DSCP
Storage Temperature	-40°C to 70°C