| Specifications |
EX4400-24T-DC-AFI |
| DRAM |
4 GB with Error Correcting Code (ECC) |
| Storage |
20 GB |
| CPU |
2.2 GHz Quad-Core Intel x86 CPU |
| Physical Layer |
• Time domain reflectometry (TDR) for detecting cable breaks
and shorts: EX4400-24P/T/MP and EX4400-48P/T/MP
• Auto medium-dependent interface/medium-dependent
interface crossover (MDI/MDIX) support: EX4400-24P/T/MP and EX4400-48P/T/MP
• Port speed downshift/setting maximum advertised speed on
10/100/1000BASE-T ports: EX4400-24P/T and EX4400-48P/T only
• Digital optical monitoring for optical ports |
| Packet-Switching Capacities |
324 Gbps (unidirectional)/648 Gbps (bidirectional) |
| Software Specifications |
| Layer 2/Layer 3 Throughput (Mpps) (Maximum with 64 Byte Packets) |
482Mpps |
| 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
|
| 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 |
| 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)
|
| 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 (QoS) |
• 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)
|
| 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 |
| Management and Analytics Platforms |
Juniper Mist Wired Assurance for Campus
Junos Space®Network Director for Campus
Junos Space® Management |
| 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 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)
• 802.1X with VoIP VLAN support
• 802.1X dynamic ACL based on RADIUS attributes
• 802.1X Supported Extensible Authentication Protocol (EAP) types: Message Digest 5 (MD5), Transport Layer Security (TLS), Tunneled TLS (TTLS), Protected Extensible Authenticated Protocol (PEAP)
• MAC authentication (RADIUS)
• Control plane DoS protection
• Radius functionality over IPv6 for authentication,
authorization, and accounting (AAA)
• DHCPv6 snooping
• IPv6 neighbor discovery
• IPv6 source guard
• IPv6 RA guard
• IPv6 Neighbor Discovery Inspection
• MACsec |
| Cooling |
• Field-replaceable fans: 2
• Total maximum airflow throughput with two power supplies:
61 CFM |
| 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) |
| Non-operating altitude |
up to 16,000 ft (4877 m) |
| Relative humidity operating |
5% to 90% (noncondensing) |
| Relative humidity non-operating |
0% to 90% (noncondensing) |
| Safety Requirements Chassis and Optics |
• CAN/CSA-C22.2 No. 62368-1 and 60950-1
• UL 62368-1 and 60950-1
• IEC 62368-1 and 60950-1 (All country deviations): CB Scheme report
• IEC 62368-3 for USB and PoE: CB Scheme report
• CFR, Title 21, Chapter 1, Subchapter J, Part 1040
• REDR c 1370 OR CAN/CSA-E 60825-1- Part 1
• IEC 60825-1
• IEC 60825-2 |
| Electromagnetic Compatibility (EMC) Requirements |
• FCC 47 CFR Part 15
• ICES-003 / ICES-GEN
• EN 300 386 V1.6.1
• EN 300 386 V2.1.1
• EN 55032
• CISPR 32
• EN 55024
• CISPR 24
• EN 55035
• CISPR 35
• IEC/EN 61000 Series
• AS/NZS CISPR 32
• VCCI-CISPR 32
• BSMI CNS 13438
• KN 32 and KN 35
• KN 61000 Series
• TEC/SD/DD/EMC-221/05/OCT-16
• TCVN 7189
• TCVN 7317 |
| Telco |
CLEI code |
| Environmental |
Reduction of Hazardous Substances (ROHS) 6/6 |
| Energy Efficiency |
• AT&T TEER (ATIS-06000015.03.2013)
• ECR 3.0.1
• ETSI ES 203 136 V.1.1.1
• Verizon TEEER (VZ.TPR.9205)
|
| Troubleshooting |
• Debugging: CLI via console, Telnet, or SSH
• Diagnostics: Show and debug command, statistics
• Traffic mirroring (port)
• Traffic mirroring (VLAN)
• IP tools: Extended ping and trace
• Juniper Networks commit and rollback |
| Traffic Monitoring |
• ACL-based mirroring
• Mirroring destination ports per system: 4
- LAG port monitoring
- Multiple destination ports monitored to 1 mirror (N:1)
• Maximum number of mirroring sessions: 4
• Mirroring to remote destination (over L2): 1 destination VLAN |
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