| Physical Specifications |
| Dimensions (W x H x D) | 17.4 x 1.72 x 13.8 in (44.2 x 4.4 x 35 cm) |
| Backplane | 160 Gbps (with QSFP+ ports) or 80 Gbps (with SFP+ ports) Virtual Chassis interconnect to link up to 10 switches as a single logical device |
| Uplink | Fixed 4-port uplinks can be individually configured as GbE (SFP) or 10GbE (SFP+) ports; 2 x 40G QSFP+ ports |
| System Weight | No power supply or fan module: 10.49 lb (4.76 kg) maximum
With single power supply and two fan modules: 12.65 lb (5.74 kg) maximum
150 W AC power supply: 1.43 lb (0.65 kg)
600 W AC power supply: 1.82 lb (0.83 kg)
920 W AC power supply: 1.87 lb (0.85 kg)
150 W DC power supply: 1.43 lb (0.65 kg)
Fan module: 0.16 lb (0.07 kg) |
| Environmental Ranges | • Operating temperature: 32° to 113° F (0° to 45° C)
• Storage temperature: -40° to 158° F (-40° to 70° C)
• Operating altitude: up to 10,000 ft (3048 m)
• Nonoperating altitude: up to 16,000 ft (4877 m)
• Relative humidity operating: 10% to 85% (noncondensing)
• Relative humidity nonoperating: 0% to 95% (noncondensing) |
| Hardware Specifications |
| Switching Engine Model | Store and forward |
| DRAM | 2 GB with ECC |
| Flash | 2 GB |
| CPU | Dual Core 1 GHz |
| GbE port density per system | 48 host ports + four 1/10 GbE and two 40GbE uplink ports |
| Physical Layer | • Cable diagnostics for detecting cable breaks and shorts
• Auto medium-dependent interface/medium-dependent interface crossover (MDI/MDIX) support
• Port speed downshift/setting maximum advertised speed on 10/100/1000BASE-T ports
• Digital optical monitoring for optical ports |
| Packet-Switching Capacities (Maximum with 64-Byte Packets) | 336 Gbps |
| Software Specifications |
| Layer 2/Layer 3 Throughput (Mpps) (Maximum with 64 Byte Packets) | 250 Mpps |
| Layer 2 Features | • Maximum MAC addresses per system: 32,000
• Jumbo frames: 9216 bytes
• Number of VLANs supported: 4,096
• Range of possible VLAN IDs: 1-4094
• Port-based VLAN
• MAC-based VLAN
• Voice VLAN
• Layer 2 Tunneling Protocol (L2TP)
• Compatible with Per-VLAN Spanning Tree Plus (PVST+)
• RVI (routed VLAN interface)
• Persistent MAC (sticky MAC)
• RSTP and VSTP running concurrently
• IEEE 802.1AB: Link Layer Discovery Protocol (LLDP)
• LLDP-MED with VoIP integration
• IEEE 802.1ae Media Access Control Security (MACsec)
• IEEE 802.1ak Multiple VLAN Registration Protocol (MVRP)
• IEEE 802.1br: Bridge Port Extension
• IEEE 802.1D: Spanning Tree Protocol
• IEEE 802.1p: CoS prioritization
• IEEE 802.1Q-in-Q: VLAN stacking
• IEEE 802.1Q: VLAN tagging
• IEEE 802.1s: Multiple Spanning Tree Protocol (MSTP)
• Number of MST instances supported: 64
• Number of VSTP instances supported: 510
• IEEE 802.1w: Rapid Spanning Tree Protocol (RSTP)
• IEEE 802.1X: Port access control
• IEEE 802.3: 10BASE-T
• IEEE 802.3ab: 1000BASE-T
• IEEE 802.3ad: Link Aggregation Control Protocol (LACP)
• IEEE 802.1ad Q-in-Q tunneling
• IEEE 802.3ae: 10-Gigabit Ethernet
• IEEE 802.3u: 100BASE-T
• IEEE 802.3z: 1000BASE-X
• IEEE 802.3x: Pause Frames/Flow Control
• Layer 3 VLAN-tagged subinterface
• PVLAN support
• Multicast VLAN routing
• Adding/removing single tag
• Filter-based SVLAN tagging
• Flexible CoS (outer .1P marking) |
| Layer 3 Features: IPv4 | • Maximum number of ARP entries: 16,000
• Maximum number of IPv4 unicast routes in hardware: 14,000 prefixes; 36,000 host routes
• Maximum number of IPv4 multicast routes in hardware: 18,000 groups; 4,000 multicast routes
• Routing Protocols: RIP v1/v2, OSPF v2
• Static routing
• Layer 3 redundancy: VRRP
• IP directed broadcast—traffic forwarding
• Virtual router (VRF-Lite) supporting RIP, OSPF
• Routing policy
• Filter-based forwarding (FBF)
• Unicast reverse-path forwarding |
| Layer 3 Features: IPv6 | • Maximum number of Neighbor Discovery entries: 8,000
• Maximum number of IPv6 unicast routes in hardware: 3,500 prefixes; 18,000 host routes
• Maximum number of IPv6 multicast routes in hardware: 9,000 groups; 2,000 multicast routes
• Neighbor discovery, system logging, Telnet, SSH, Junos Web, SNMP, Network Time Protocol (NTP), Domain Name System (DNS)
• Routing protocols: RIPng, OSPF v3
• Static routing
• IPv6 ACL (PACL, VACL, RACL)
• IPv6 CoS (BA, MF classification and rewrite, scheduling based on TC)
• MLDv1/v2 snooping
• IPv6 ping, traceroute
• IPv6 stateless auto-configuration
• IPv6 Layer 3 forwarding in hardware
• IPv6 Layer 3 redundancy: VRRP v6
• Virtual Router support for IPv6 unicast
• PIM for IPv6 multicast |
| Access control lists (ACLs) (Junos OS firewall filters) | • Port-based ACL (PACL)—ingress and egress
• VLAN-based ACL (VACL)—ingress and egress
• Router-based ACL (RACL)—ingress and egress
• ACL entries (ACE) in hardware per system: 1500
• ACL counter for denied packets
• ACL counter for permitted packets
• Ability to add/remove/change ACL entries in middle of list (ACL editing)
• L2-L4 ACL
• Trusted Network Connect (TNC) certified
• Static MAC authentication
• MAC-RADIUS
• Control plane denial-of-service (DoS) protection
• Firewall filter on me0 interface (control plane protection)
• Captive portal—Layer 2 interfaces
• Fallback authentication
• Media Access Control Security (MACsec) |
| Access Security | • MAC limiting
• Allowed MAC addresses, configurable per port
• Dynamic ARP inspection (DAI)
• Proxy ARP
• Static ARP support
• DHCP snooping
• 802.1X port-based
• 802.1X multiple supplicants
• 802.1X with VLAN assignment
• 802.1X with authentication bypass access (based on host MAC address)
• 802.1X with VoIP VLAN support
• 802.1X dynamic access control list (ACL) based on RADIUS attributes
• 802.1X supported EAP types: MD5, Transport Layer Security (TLS), Tunneled Transport Layer Security (TTLS), Protected Extensible Authentication Protocol (PEAP)
• IPv6 RA Guard
• IPv6 Neighbor Discovery Inspection
• Media Access Control security (MACsec) |
| High Availability | • Link aggregation:
• 802.3ad (LACP) support
• Number of link aggregation groups (LAGs) supported: 128
• Maximum number of ports per LAG: 16
• Tagged ports support in LAG
• Graceful Route Engine switchover (GRES) for IGMP v1/v2/ v3 snooping
• Nonstop routing (OSPF v1/v2/v3, RIP/RIPng, PIM)
• Nonstop software upgrade (NSSU) |
| Quality of Service (QoS) | • Layer 2 QoS
• Layer 3 QoS
• Ingress policing: two-rate three-color
• Hardware queues per port: 12 (8 unicast, 4 multicast)
• Scheduling methods (egress): Strict Priority (SP), SDWRR
• 802.1p, DiffServ code point (DSCP/IP) precedence trust and marking
• L2-L4 classification criteria, including Interface, MAC address, EtherType, 802.1p, VLAN, IP address, DSCP/IP precedence, and TCP/UDP port numbers
• Congestion avoidance capabilities: Tail drop |
| Multicast | • IGMP snooping entries: 1000
• IGMP snooping
• IGMP v1/v2/v3
• PIM SM, PIM SSM, PIM DM
• VRF-Lite support for PIM and IBMP
• MLD v1/v2 snooping
• IGMP filter
• Multicast Source Discovery Protocol (MSDP)
• PIM for IPv6 multicast |
| Services and Manageability | • Junos OS CLI
• Web interface: Junos Web support
• Out-of-band management: Serial, 10/100BASE-T Ethernet
• ASCII configuration
• Rescue configuration
• Configuration rollback
• Image rollback
• Element management tools: Junos Space Network Management Platform
• Real-time performance monitoring (RPM)
• SNMP: v1, v2c, v3
• Remote monitoring (RMON) (RFC 2819) Groups 1, 2, 3, 9
• Network Time Protocol (NTP)
• DHCP server
• DHCP client and DHCP proxy
• DHCP relay and helper
• VR-aware DHCP
• RADIUS authentication
• TACACS+ authentication
• SSHv2
• Secure copy
• HTTP/HTTPs
• DNS resolver
• System logging
• Temperature sensor
• Configuration backup via FTP/secure copy
• sFlow
• Interface range
• Port profile associations
• Uplink failure detection
• Zero Touch Provisioning using DHCP |
| Safety Certifications | • UL-UL60950-1 (Second Edition)
• C-UL to CAN/CSA 22.2 No.60950-1 (Second Edition)
• TUV/GS to EN 60950-1 (Second Edition), Amendment A1-A4, A11
• CB-IEC60950-1, (Second Edition with all country deviations)
• EN 60825-1 (Second Edition) |
| Electromagnetic Compatibility Certifications | • FCC 47CFR Part 15 Class A
• EN 55022 Class A
• ICES-003 Class A
• VCCI Class A
• AS/NZS CISPR 22 Class A
• CISPR 22 Class A
• EN 55024
• EN 300386
• CE |
| Telecom Quality Management | TL9000 |
| Environmental | Reduction of Hazardous Substances (ROHS) 6 |
| Telco | CLEI code |
| Acoustic Noise in DBA | 35 |
