| System Capacity |
|---|
| System throughput | Up to 25.6 Tbps (bidirectional) |
| Forwarding capacity | 8 billion packets per second (8 Bpps) |
| Port density | 32 ports of QSFP56-DD 400GbE |
| SFP+/SFP28 | 2 SFP+ transceiver ports for in-band network management |
| Physical Specifications |
|---|
| Dimensions (W x H x D) | 17.26 x 1.72 x 21.1 in. (43.8 x 4.3 x 53.59 cm) |
| Rack units | 1 U |
| Weight | 24.5 lb (11.11 kg) with 2 power supplies and 6 fans installed |
| Switch chip | Broadcom Tomahawk3 |
| CPU | Intel |
| Operating system | Junos OS Evolved |
| Recommended Software Version | Junos OS Evolved 22.2R3-Sx and later |
| Warranty | Juniper standard one-year warranty |
| Power |
|---|
| Power supplies | Redundant (1+1) hot-pluggable 1600 W AC/DC power supplies (2n) |
| AC power | 115-240 V single phase AC power |
| DC power | -48 to -60 V DC power |
| Maximum power draw (220-240 V) | 834 W (AC), 860 W (DC) at 40°C with SR optics, 100% load IMIX |
| Typical power draw (220-240 V) | 310 W (AC), 328 W (DC) at 25°C with DACs, 50% load IMIX, excluding transceivers |
| Cooling |
|---|
| Airflow | Ports-to-FRUs (AFO) and FRUs-to-ports (AFI) cooling (AFI for this SKU: back-to-front) |
| Fans | Redundant (5+1) hot-pluggable fan modules with variable speed to minimize power draw |
| Performance and Scale |
|---|
| Total packet buffer | 64 MB |
| Latency | 660 ns (cut-through) |
| Ingress ACL scale | 768 Routed ACL (RACL), VLAN ACL (VACL), and Port ACL (PACL) rules |
| Egress ACL scale | 2558 RACL; 512 VACL and PACL rules (may be lower when used concurrently) |
| RIB routes | 2,000,000 routes |
| FIB LPM routes (IPv4/IPv6) | 336,000 |
| FIB host routes | 380,000 |
| Mirroring destination ports per switch | 4 |
| Maximum number of mirroring sessions | 4 |
| Mirroring destination VLANs per switch | 4 |
| Port Configurations |
|---|
| High-speed ports | 32x QSFP-DD/QSFP+/QSFP28 supporting 400GbE, 200GbE, 100GbE, 50GbE, 40GbE, 25GbE, 10GbE |
| Software Features |
|---|
| Automation | Zero-touch provisioning (ZTP), operations and event scripts, automatic rollback, Python scripting |
| Junos Evolved | Modular architecture, in-service component upgrades, retained state, containerization (LXC/Docker) |
| Layer 2 features | Supported (details in Feature Explorer) |
| Layer 3 features | Supported (details in Feature Explorer) |
| Multicast | Supported |
| MPLS | L3 VPN, RSVP traffic engineering, LDP (Premium Services License) |
| Security and filters | Supported |
| QoS | Ingress policing: 1 rate 2 color, 2 rate 3 color; Egress policing: Policer, policer mark down; Egress shaping: Per queue, per port |
| Data Center Bridging (DCB) | RoCEv2, PFC, DCBX |
| High Availability | Supported |
| Visibility and analytics | Junos Telemetry Interface (JTI) for streaming telemetry, gRPC, UDP, model-driven |
| Management | CLI, NETCONF, JET, JTI; Link aggregation: IP (SIP, DIP, TCP/UDP ports), L2/non-IP (MAC SA/DA, Ether type, VLAN ID, source port) |
| Environmental Ranges |
|---|
| Operating temperature | 32° to 104° F (0° to 40° C) |
| Storage temperature | -40° through 158° F |
| Operating altitude | Up to 6000 feet (1828.8 meters) |
| Relative humidity operating | 5 to 90% (noncondensing) |
| Relative humidity nonoperating | 5 to 95% (noncondensing) |
| Seismic | Designed to meet GR-63, Zone 4 earthquake requirements |
| Standards Compliance |
|---|
| IEEE standards | Supported (details in datasheet) |
| T11 standards | Supported (details in datasheet) |
| Supported RFCs | Supported (details in datasheet) |
| Supported MIBs | Supported (details in datasheet) |
| Safety, EMC, and Environmental Compliance |
|---|
| Safety and compliance | Supported (details in datasheet) |
| Electromagnetic compatibility | Supported (details in datasheet) |
| Environmental | ROHS 2011/65/EU amended by (EU) 2015/863; Silver PSU Efficiency; Recycled material; WEEE; REACH; China ROHS |
