| Physical Specifications |
| Max. System Power Consumption (Input Power without PoE) |
20 W AC |
| Total PoE Power Budget |
0 |
| Backplane |
40 Gbps Virtual Chassis interconnect to link up to four switches as a single logical device |
| Dimensions (W x H x D) |
10.98 x 1.72 x 9.4 in (27.9 x 4.4 x 23.9 cm) |
| Weight |
5.45 lb (2.48 kg) |
| Environmental Ranges |
+ Operating temperature: 32° to 104° F (0° to 40° C)1, 2
+ Storage temperature: -40° to 158° F (-40° to 70° C)
+ Operating altitude: up to 5,000 ft (1524 m)
+ Nonoperating altitude: up to 16,000 ft (4877 m)
+ Relative humidity operating: 10% to 85% (noncondensing)
+ Relative humidity nonoperating: 0% to 95% (noncondensing) |
| Cooling |
Fanless operation |
| Hardware Specifications |
| Switching Engine Model |
Store and forward |
| DRAM |
2 GB with ECC |
| Flash |
2 GB |
| CPU |
1.25 GHz ARM CPU |
| GbE port density per system |
14 (12 access ports + 2 uplink ports) |
| Packet Switching Capacities |
32 Gbps (unidirectional)/64 Gbps (bidirectional) |
| Layer 2 Throughput (Mpps) |
47 Mpps (wire speed) |
| Features |
| Layer 2 Switching |
+ Maximum MAC addresses in hardware: 16,000
+ Jumbo frames: 9216 bytes
+ Number of VLANs supported: 4093
+ Range of possible VLAN IDs: 1-4094
+ Port-based VLAN
+ MAC-based VLAN
+ Voice VLAN
+ Layer 2 Tunneling Protocol (L2TP)
+ IEEE 802.1ak: Multiple VLAN Registration Protocol (MVRP)
+ Compatible with Per-VLAN Spanning Tree Plus (PVST+)
+ RVI (Routed VLAN Interface)
+ IEEE 802.1AB: Link Layer Discovery Protocol (LLDP)
+ LLDP-MED with VoIP integration
+ IEEE 802.1ad Q-in-Q tunneling
+ IEEE 802.1br Bridge Port Extension
+ IEEE 802.1D: Spanning Tree Protocol
+ IEEE 802.1p: CoS Prioritization
+ IEEE 802.1Q: VLAN Tagging
+ IEEE 802.1Q-in-Q: VLAN Stacking
+ IEEE 802.1s: Multiple Spanning Tree Protocol (MSTP)
+ Number of MST instances supported: 64
+ IEEE 802.1w: Rapid Spanning Tree Protocol (RSTP)
+ IEEE 802.1X: Port Access Control
+ IEEE 802.3: 10BASE-T
+ IEEE 802.3u: 100BASE-TX
+ IEEE 802.3ab: 1000BASE-T
+ IEEE 802.3z: 1000BASE-X
+ IEEE 802.3af: PoE
+ IEEE 802.3at: PoE+
+ IEEE 802.3ad: Link Aggregation Control Protocol (LACP)
+ IEEE 802.3x: Pause Frames/Flow Control |
| Layer 3 Features: IPv4 |
+ Maximum number of ARP entries: 1,500
+ Maximum number of IPv4 unicast routes in hardware: 512 prefixes; 4,096 host routes
+ Maximum number of IPv4 multicast routes in hardware: 2,048 groups; 2,048 multicast routes
+ Routing Protocols: RIP v1/v2, OSPF v1/v2
+ Static routing
+ Routing policy
+ Bidirectional Forwarding Detection (BFD) with slow timers (> 3 sec)
+ IP directed broadcast |
| Layer 3 Features: IPv6 Management Functionality |
Maximum number of Neighbor Discovery (ND) entries: 1,500
+ Maximum number of IPv6 unicast routes in hardware: 512 prefixes; 2,048 host routes
+ Maximum number of IPv6 multicast routes in hardware: 1,024 groups; 1,024 multicast routes
+ Neighbor discovery, system logging, Telnet, SSH, SNMP, Network Time Protocol (NTP), Domain Name System (DNS)
+ Static routing
+ Routing protocols: RIPng, OSPF v3 |
| Access control lists (ACLs) (Junos OS firewall filters) |
+ Port-based ACL (PACL)—256 ingress; 256 egress
+ VLAN-based ACL (VACL)—256 ingress; 256 egress
+ Router-based ACL (RACL)—256 ingress; 512 egress
+ ACL entries (ACE) in hardware per system: 2,000
+ 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 |
| Access Security |
+ MAC limiting
+ Allowed MAC addresses—configurable per port
+ Sticky MAC (persistent MAC address learning)
+ 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: Message Digest 5 (MD5), Transport Layer Security (TLS), Tunneled Transport Layer Security (TTLS), Protected Extensible Authentication Protocol (PEAP)
+ IPv6 RA Guard
+ IPv6 Neighbor Discovery Inspection
+ Captive Portal
+ Static MAC authentication
+ MAC-RADIUS
+ Control plane DoS protection
+ Fallback Authentication
+ Trusted Network Connect (TNC) certified |
| High Availability |
+ Link Aggregation
+ 802.3ad (LACP) support:
- Number of LAGs supported: 128
- Maximum number of ports per LAG: 8
+ Tagged ports support in LAG
+ Uplink failure detection |
| Quality of Service (QoS) |
+ Layer 2 QoS
+ Layer 3 QoS
+ Ingress policing: 2 rate 3 color
+ Hardware queues per port: 8
+ Scheduling methods (egress): Strict Priority (SP), shapeddeficit weighted round-robin (SDWRR)
+ 802.1p: DSCP/IP precedence trust and marking
+ L2-L4 classification criteria: Interface, MAC address, Ethertype, 802.1p, VLAN, IP address, DSCP/IP precedence, TCP/UDP port numbers
+ Congestion avoidance capabilities: Tail drop and WRED |
| Multicast |
+ Internet Group Management Protocol (IGMP) snooping entries: 2,000
+ IGMP: v1, v2, v3
+ IGMP snooping
+ PIM sparse mode (PIM SM), PIM source-specific multicast (PIM SSM), PIM dense mode (PIM DM) |
| 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)
+ 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 |
Switch
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