| Physical Specifications |
| Form Factor | 1 RU, 19-inch rack-mountable |
| Dimensions (W x H x D) | 17.5 x 1.75 x 20.5 in (44.5 x 4.4 x 52.1 cm) |
| Weight | 28.4 lb (12.9 kg) |
| Airflow | Front-to-Back (AFI) |
| Port Configuration |
| Fixed Ports | 48 x 10/25GbE SFP28 |
| Uplink Ports | 8 x 40/100GbE QSFP28 (breakout to 4x10/25GbE per port) |
| Management Ports | 1 x RJ-45 console, 1 x RJ-45 OOB management, 1 x USB 2.0 |
| SFP28 Support | 10GBASE-SR/FR/LR/ER |
| QSFP28 Support | 40GBASE-SR4/FR4/LR4, 100GBASE-SR4/DR/LR4 |
| Performance |
| Switching Capacity | 4 Tbps (full duplex) |
| Forwarding Rate | 3 Bpps |
| Latency | < 700 ns (L3, 25G ports) |
| Packet Buffer | 32 MB shared across all ports |
| MAC Addresses | 288,000 |
| VLAN IDs | 4,096 |
| ARP Entries | 192,000 |
| IPv4 Routes (FIB) | 128,000 (Layer 3 FIB) |
| IPv6 Routes (FIB) | 96,000 (Layer 3 FIB) |
| Jumbo Frames | 12,800 bytes |
| Queues per Port | 8 |
| Layer 2 Features |
| L2 Protocols | 802.1Q VLAN, 802.1ad (Q-in-Q), 802.1Qbg EVPN/VXLAN, 802.1BR, 802.1AB LLDP, 802.3ad LACP, STP/RSTP/MSTP, ERPS (G.8032) |
| MAC Learning | 288K MAC addresses with L2PT |
| Multicast | IGMP snooping v1/v2/v3, PIM snooping |
| Layer 3 Features |
| Routing Protocols | BGP, OSPF, IS-IS, RIP, VRF, PBF, static routes |
| IPv6 | IPv6 forwarding, RIPng, OSPFv3, IS-IS for IPv6, BGP for IPv6, multicast |
| Multicast | PIM-SM/DM/SSM, PIM Source/Domain Discovery (PSDP) |
| High Availability & Security |
| Redundancy | Redundant PSU (1+1), redundant fans (5+1 N+1) |
| HA Features | ISSU, graceful restart, nonstop routing (NSR/GRES) |
| Security | MACsec (802.1AE), IPsec, firewall filters, DDoS protection, role-based access (RBAC) |
| Software Features |
| OS | Junos OS Evolved |
| Overlay | EVPN-VXLAN (Type 2/3/5), MPLS |
| Timing | SyncE, PTP (IEEE 1588v2), 1PPS, 10MHz |
| QoS | Hierarchical QoS, 8 queues/port, scheduling (strict, WFQ) |
| Standards Compliance |
| IEEE Standards | 802.1AB LLDP/EDP, 802.1AG CFM, 802.1Q VLAN, 802.1Qbg EVPN, 802.1BR, 802.1ad Q-in-Q, 802.3ad LACP, 802.1D-2004 STP, 802.1s-2002 MSTP, 802.1w-2004 RSTP, 802.3ab 1000BASE-T, 802.3 10GBASE-X, 802.3bt 25GBASE-X, 802.3cd 100GBASE-X, 802.3ba 40GBASE/100GBASE |
| RFC Standards | RFC 768 UDP, RFC 793/791/1122 TCP/IP, RFC 792/4443 ICMP, RFC 1701/1702 IP/TCP/UDP, RFC 2474 DiffServ, RFC 2597 DiffServ PHB, RFC 8625 MLDP-in-Band Signaling, and more (full list in datasheet) |
| Environmental Specifications |
| Operating Temperature | 32° to 113° F (0° to 45° C) |
| Storage Temperature | -40° to 158° F (-40° to 70° C) |
| Humidity (Operating) | 5% to 90% noncondensing |
| Altitude (Operating) | Sea level to 10,000 ft (3,000 m) |
| Power |
| Power Supplies | Dual hot-swap 1100W AC PSUs (1+1 redundant) |
| Power Consumption (Typical) | 450 W |
| Power Consumption (Max) | 1020 W (with full transceivers) |
| AC Input | 100-240 VAC, 50-60 Hz |
| Acoustic Noise |
| Sound Power (Typical) | 60.2 dBA at 25°C |
| Sound Power (Max) | 73.1 dBA |
| Safety & Compliance |
| Safety Certifications | UL/CSA 60950-1, EN 60950-1, IEC/EN 60825-1 Laser |
| EMC | FCC 47CFR Part 15 Class A, ICES-003 Class A, EN 55022/32 Class A, CISPR 22 Class A, VCCI Class A, AS/NZS 55022/32 Class A |
| NEBS | GR-63-CORE Levels 2/3/4, GR-1089-CORE Levels 2/3 indoor |
| Environmental | REACH, RoHS 2, WEEE |
| MTBF | Over 5 years (5+9s availability) |
