General & Platform

• Fixed Ethernet switch, 1 Rack Unit (1U) form factor – rack-mountable.

• Runs Junos OS network operating system.

• Supports Virtual Chassis stacking (up to 10 switches).

• Front-to-back airflow; field-replaceable fans.

Ports & Interfaces

• 24 × 10/100/1000 Mbps PoE+ RJ45 ports (all ports support PoE+).

• 4 × 40 Gbps QSFP+ ports for uplinks or Virtual Chassis.

• 1 × Serial console port (RJ45) and 1 × out-of-band management RJ45 (varies by vendor).

• USB port (Type A) for image install/storage.

PoE & Power

• PoE standards: IEEE 802.3at (PoE+), IEEE 802.3af (PoE).

• PoE budget: ~550 W with included 715 W PSU.
  (Note: Higher budgets possible with larger power supplies in some configurations.)

• Hot-swappable power supplies supported; redundant PSU optional.

Performance

• Switching capacity: 448 Gbps (bidirectional).

• Forwarding rate: 333 Mpps (wire-speed).

• Backplane (Virtual Chassis): 320 Gbps.

Network Capacity

• VLANs: Up to 4093.

• MAC address table: 64,000 entries.

• Jumbo frames: Up to 9216 bytes.

• IPv4 unicast routes: ~32,000; IPv6 unicast routes: ~18,000.

• ARP entries: ~64,000.

Layer 2 & Layer 3 Features

• Supports VLANs, STP/RSTP/MSTP, IGMP/MLD snooping.

• Static routing and routing protocols like OSPF, BGP, RIP.

• Advanced features including ACLs, QoS, DHCP snooping, and more.

Hardware Specs

• CPU: 1.5 GHz Dual-Core PowerPC.

• DRAM: 2 GB ECC; Flash: 2 GB.

• Dimensions: ~17.4″ × 1.7″ × 16.4″ (WxHxD).

• Weight: ~16.1 lb (with PSU & fans).

Environmental & Other

• Designed for enterprise/campus access, wiring closets, and data centers.

• Redundant features with graceful Routing Engine switchover when stacked.

Typical Use Cases

✅ Enterprise edge access — deliver network and PoE power to phones, wireless APs, cameras.
✅ Branch and campus networks — stack multiple units with Virtual Chassis.
✅ High-availability deployments — redundant power, fan modules, and unified management.

Pros & Cons (High Level)

👍 Pros

• Fully managed Layer 2/3 switch with PoE+ (all ports).

• Virtual Chassis for easy stacking.

• Strong performance for access-layer roles.

👎 Cons

• Higher cost than simpler unmanaged switches.

• QSFP+ uplinks and stacking modules are extra.