EX4550 10GbE Ethernet Switch

Compact, high-performance platform for data centre, campus, and service provider deployments.

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The scalable EX4550 Ethernet switch offers an economical, power-efficient, 1/10GbE switch platform for enterprise campus and data center top-of-rack deployments, as well as for service provider environments.

The 1 U unit has 32 wire-speed GbE/10GbE ports with two expansion slots for optional modules that increase port densities to 48. Supporting Layer 3 dynamic routing protocols such as RIP and OSPF, MPLS services such as Layer 2 and Layer 3 VPNs, Media Access Control Security (MACsec) on all ports, and a comprehensive quality-of-service (QoS) feature set.

The EX4550 also supports Juniper’s Virtual Chassis technology and can be deployed with EX4200 switches in the same Virtual Chassis configuration to support environments where both 1GbE and 10GbE servers are present.


Form Factor Fixed platform
Virtual Chassis configuration consisting of up to 10 switches
Access Ports N/A
Dimensions (W x H x D)Backplane Speed 17.4 x 1.7 x 18.5 in (44.07 x 4.4 x 47.0 cm)
1 rack unit
Backplane Speed Up to 256 Gbps (Virtual Chassis)
Data rate 960 Gbps (full duplex)
Throughput 714 Mpps
Resiliency Dual internal load sharing AC and DC power supplies (optional); redundant variable-speed fans
Operating System Junos OS
Traffic monitoring sFlow
Quality-of-Service (QoS) Queues/port 8
MAC addresses 32,000
Junbo Frames 9216 bytes
IPc4 unicast/multicast routes 14,000* / 4000
*Uni-dimensional scale
IPv6 unicast/multicast routes 3400* / 1000
*Uni-dimensional scale
Number of VLANs 4096
ARP entries 8,000