Коммутатор в отличном состоянии, 2 блока питания по 920 Ватт, комплект для монтажа в телекоммуникационную стойку, кабели питания.

Switch EX3400-48P - Ethernet свитч, который представляет собой высокопроизводительное, гибкое и энергоэффективное решение для современной информационной среды предприятия. EX3400-48P поддерживает ряд ключевых функций: Junos Fusion Enterprise позволяет большому количеству свитчей серии EX3400 быть сконфигурированными как сопутствующие устройства подключаемые к EX9200 для создания единого логического устройства. Доступны 48*********000BASE-T портов, 4 dual-mode (GbE/10GbE) SFP/SFP+ аплинк порта и 2 40GbE QSFP+ порта. Аплинк порты 10GbE/40GbE могут быть сконфигурированы как интерфейсы Virtual Chassis. Данная модель поддерживает 802.3af (PoE) and 802.3at (PoE+) на всех 48 портах с бюджетом PoE 1440 Ватт. Обеспечивается широкая функциональность Layer 2, а также RIP и статическая маршрутизация. Обеспечивается поддержка Layer 3 (OSPF v2, IGMP v1/v2/v3, PIM, VRRP, Q-in-Q, BFD, virtual router) через дополнительные функциональные лицензии.

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
- EX3400-48P: 54 (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)
- EX3400-48P: 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 802.3af: PoE
- IEEE 802.3at: PoE+
- 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

Dimensions (W x H x D)
- 44.2 x 4.4 x 35 cm
System Weight
- 6.39 kg maximum
Environmental Ranges
- Operating temperature: 0 to 45 C
- Storage temperature: -40 to 70 C
- Operating altitude: up to 3048 m
- Nonoperating altitude: up to 4877 m
- Relative humidity operating: 10% to 85% (noncondensing)
- Relative humidity nonoperating: 0% to 95% (noncondensing)