| Datasheet Juniper EX4400-24X |
| Physical Specifications |
| Backplane |
400 Gbps Virtual Chassis interconnect to combine up to 10 units as a single logical device |
| Interface |
24x SFP+ 10 Gbps
1x RJ45 console
1x Management port
2x QSFP28
1x USB type A |
| Extension Module Options |
EX4400-EM-4S, 4 port SFP+
EX4400-EM-4Y, 4 port SFP28
EX4400-EM-1C, 1 port QSFP28 |
| Power Options |
550W AC AFO |
| Dimensions (W x H x D) |
With power supply and fans installed: 17.39 x 1.72 x 16.93 in. (44.17 x 4.37 x 43 cm)
Height: 1 U |
| System Weight |
1.76 lb (0.8 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 6000 ft at 40° C (1828.8m) |
| Nonoperating altitude |
up to 16,000 ft (4,877 m) |
| Relative humidity operating |
5% to 90% (noncondensing) |
| Relative humidity non-operating |
0% to 90% (noncondensing) |
| Cooling |
Field-replaceable fans: 2
Total maximum airflow throughput with two power supplies: 61 CFM |
| Hardware Specifications |
| Switching Engine Mode |
Store and forward |
| Memory |
DRAM: 4 GB with Error Correcting Code (ECC) on all models
Storage: 20 GB on all models |
| CPU |
All models: 2.2 GHz Quad-Core Intel x86 CPU |
| Software Specifications |
| Packet Switching Capacities (Maximum with 64 Byte Packets) |
540 Gbps (unidirectional)/ 1080 Gbps (bidirectional) |
| Layer 2/Layer 3 Throughput (Mpps) (Maximum with 64 Byte Packets |
803 Mpps |
| Security |
• MAC limiting (per port and per VLAN) • Allowed MAC addresses: 112,000
• Dynamic Address Resolution Protocol (ARP) inspection (DAI) • IP source guard
• Local proxy ARP
• Static ARP support
• Dynamic Host Configuration Protocol (DHCP) snooping
• Captive portal
• Persistent MAC address configurations
• Distributed denial of service (DDoS) protection (CPU control path flooding protection) |
| Layer 2 Switching |
• Maximum MAC addresses per system: 112,000
• Jumbo frames: 9216 Bytes
• Number of VLANs supported: 4093
• Range of possible VLAN IDs: 1 to 4094
• Virtual Spanning Tree (VST) instances: 510
• Port-based VLAN
• Voice VLAN
• Physical port redundancy: Redundant trunk group (RTG)
• Compatible with Per-VLAN Spanning Tree Plus (PVST+)
• Routed VLAN interface (RVI)
• Uplink failure detection (UFD)
• ITU-T G.8032: Ethernet Ring Protection Switching
• IEEE 802.1AB: Link Layer Discovery Protocol (LLDP)
• LLDP-MED with VoIP integration
• Default VLAN and multiple VLAN range support
• MAC learning deactivate
• Persistent MAC learning (sticky MAC)
• MAC notification
• Private VLANs (PVLANs)
• Explicit congestion notification (ECN)
• Layer 2 protocol tunneling (L2PT)
• IEEE 802.1ak: Multiple VLAN Registration Protocol (MVRP)
• IEEE 802.1p: CoS prioritization
• IEEE 802.1Q: VLAN tagging
• IEEE 802.1X: Port Access Control
• IEEE 802.1ak: Multiple Registration Protocol
• IEEE 802.3: 10BASE-T
• IEEE 802.3u: 100BASE-T
• IEEE 802.3ab: 1000BASE-T
• IEEE 802.3z: 1000BASE-X
• IEEE 802.3bz: 2.5GBASE-T and 5GBASE-T
• IEEE 802.3ae: 10-Gigabit Ethernet
• IEEE 802.3by: 25-Gigabit Ethernet
• IEEE 802.3af: Power over Ethernet
• IEEE 802.3at: Power over Ethernet Plus
• IEEE 802.3bt: 90 W Power over Ethernet
• IEEE 802.3x: Pause Frames/Flow Control
• IEEE 802.3ah: Ethernet in the First Mile |
| Layer 3 Features: IPv4 |
• Maximum number of ARP entries: 24,000
• Maximum number of IPv4 unicast routes in hardware: 130,048 prefixes; 81,000 host routes
• Maximum number of IPv4 multicast routes in hardware: 40,000 multicast routes
• Routing protocols: RIPv1/v2, OSPF, BGP, IS-IS
• Static routing
• Routing policy
• Bidirectional Forwarding Detection (BFD)
• L3 redundancy: Virtual Router Redundancy Protocol (VRRP)
• VRF-Lite: 1000 |
| Layer 3 Features: IPv6 |
• Maximum number of Neighbor Discovery (ND) entries: 12,000
• Maximum number of IPv6 unicast routes in hardware: 87,000 prefixes; 40,000 host routes
• Maximum number of IPv6 multicast routes in hardware: 20,000 multicast routes
• Routing protocols: RIPng, OSPFv3, IPv6, ISIS • Static routing |
| Spanning Tree |
• IEEE 802.1D: Spanning Tree Protocol
• IEEE 802.1s: Multiple instances of Spanning Tree Protocol (MSTP)
• Number of MST instances supported: 64
• Number of VLAN Spanning Tree Protocol (VSTP) instances supported: 510
• IEEE 802.1w: Rapid reconfiguration of Spanning Tree Protocol |
| Link Aggregation |
• IEEE 802.3ad: Link Aggregation Control Protocol
• 802.3ad (LACP) support:
- Number of LAGs supported: 128
- Maximum number of ports per LAG: 16
• LAG load-sharing algorithm bridged or routed (unicast or multicast) traffic:
- IP: S/D IP
- TCP/UDP: S/D IP, S/D Port
- Non-IP: S/D MAC
• Tagged ports support in LAG |
| Access Control Lists (ACLs) (Junos OS Firewall Filters) |
• ACL entries (ACE) in hardware per system:
- Port-based ACL (PACL) ingress: 2048
- VLAN-based ACL (VACL) ingress: 2048
- Router-based ACL (RACL) ingress: 2048
- Egress shared across PACL and VACL:
- Port-based ACL (PACL) egress: 1024
- Vlan based ACL (VACL) egress: 512
- Egress shared across PACL and VACL: 512
- Egress across RACL: 1024 • 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 |
• 802.1X port-based
• 802.1X multiple supplicants
• 802.1X with VLAN assignment
• 802.1X with authentication bypass access (based on host MAC address) |
| High Availability |
• Redundant, hot-swappable power supplies
• Redundant, field-replaceable, hot-swappable fans
• GRES for Layer 2 hitless forwarding and Layer 3 protocols on RE failover
• Graceful protocol restart (OSPF, BGP)
• Layer 2 hitless forwarding on RE failover
• Nonstop bridging: LACP, xSTP
• Nonstop routing: PIM, OSPF v2 and v3, RIP v2, RIPng, BGP, BGPv6, ISIS, IGMP v1, v2, v3
• Online insertion and removal (OIR) uplink module |
| Quality of Service |
• L2 QoS
• L3 QoS
• Ingress policing: 1 rate 2 color
• Hardware queues per port: 12 (8 unicast + 4 multicast)
• Scheduling methods (egress): Strict priority (SP), weighted deficit round-robin (WDRR)
• 802.1p, DiffServ code point (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, and more
• Congestion avoidance capabilities: Tail drop, weighted random early detection (WRED) |
| Multicast |
• IGMP: v1, v2, v3
• IGMP snooping
• Multicast Listener Discovery (MLD) snooping
• Protocol Independent Multicast-Sparse Mode (PIM-SM), PIM Source-Specific Mode (PIM-SSM), PIM Dense Mode (PIM-DM) |
| Management and Analytics Platforms |
• Juniper Mist Wired Assurance for Campus
• Junos Space Network Director for Campus
• Junos Space® Management |
| Device Management and Operations |
• Junos OS CLI
• Out-of-band management: Serial; 10/100/1000BASE-T Ethernet • Rescue configuration
• Configuration rollback
• Image rollback
• RMON (RFC2819) groups 1, 2, 3, 9
• Remote performance monitoring
• SNMP: v1, v2c, v3
• Network Time Protocol (NTP)
• DHCP server
• DHCP client and DHCP proxy
• DHCP relay and helper
• DHCP local server support
• RADIUS
• TACACS+
• SSHv2
• Secure copy
• HTTP/HTTPs
• Domain Name System (DNS) resolver
• System logging
• Temperature sensor
• Configuration backup via FTP/secure copy |
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