Danh mục

Model	EX9251-8X4C
Architecture	• Single data, control, and management plane
Power	• Holds up to two power supplies: ₀ Autosensing 120/240 V AC (1+1 redundancy) ₀ Maximum power draw: 300 W (AC)
Cooling	• Internally redundant fan tray with front-to-back airflow
Weight (fully loaded)	• 10.5 kg
Maximum throughput	• Up to 800 Gbps
Routing Engine (RE)	• Integrated single RE • 1.6 GHz, 8 core Intel Xeon processor • Up to 32 gigabytes DRAM • Solid-state drive (SSD) (up to 100 GB) • Console, auxiliary serial, and Ethernet management ports USB storage interface
Operating system	• Juniper Networks Junos operating system
High availability	• Hardware designed for continuous operation: ₀ Secure, modular architecture that isolates faults ₀ Separate control and forwarding planes that enhance scalability and resiliency
Layer 2 features	• Up to 1 million MAC addresses • Up to 512,000 Address Resolution Protocol (ARP) entries with mid-scale (ML) license (256,000 entries without ML license) • Up to 512,000 forwarding information base (FIB) entries with ML license (256,000 entries without ML license) • Jumbo frames (9192 bytes maximum) • 32,000 VLANs • VLAN Registration Protocol • 802.3ad—Link Aggregation Control Protocol (LACP) • 802.1D—Spanning Tree Protocol (STP) • 802.1w—Rapid Spanning Tree Protocol (RSTP) • 802.1s—Multiple Spanning Tree Protocol (MSTP) • VLAN Spanning Tree Protocol (VSTP) • Layer 2 Protocol Tunneling (L2PT)
Layer 3 features	• 1 million IPv4 routing information base (RIB) • 1 million IPv6 RIB • Static routing • RIP v1/v2 • OSPF v1/v2 • OSPF v3 • Filter-based forwarding • Virtual Router Redundancy Protocol (VRRP) • IPv6 • Bidirectional Forwarding Detection (BFD) • Virtual routers • BGP (Advanced Feature license) • IS-IS (Advanced Feature license)
Hardware tunneling	• GRE tunnels • MPLS capabilities (Advanced Feature License) • VPLS • BGP/MPLS VPNs Ethernet VPNs
Multicast	• Up to 256,000 IPv4 multicast routes • Up to 256,000 IPv6 multicast routes • Internet Group Management Protocol (IGMP) v1/v2/v3 • IGMP snooping • Multicast Listener Discovery (MLD) v1/v2 • MLD snooping • Protocol Independent Multicast PIM-SM, PIM-SSM, PIM-DM Multicast Source Discovery Protocol (MSDP)
Firewall filters	• Ingress and egress L2-L4 access control lists (ACLs): ₀ Port ACLs ₀ VLAN ACLs ₀ Router ACLs Control plane denial-of-service (DoS) protection
Quality of service (QoS)	• 16,000 policers per chassis • 8 egress queues per port • Weighted random early detection (WRED) scheduling • Weighted round-robin (WRR) queuing Strict priority queuing
Virtualization	• Integration with Juniper Contrail Platform • Integration with VMware NSX vSphere • Network virtualization protocols such as VXLAN • VXLAN L2 and L3 gateway EVPN and VPLS for DCI
Management	• Junos OS CLI • Junos Space® Network Director • Junos XML management protocol • SNMP v1/v2/v3 • RADIUS • TACACS+ • Extensive MIB support • Firewall-based port mirroring • Link Layer Discovery Protocol (LLDP) • Advanced Insight Solutions (AIS)
System Capacity
Maximum throughput bandwidth/slot	• 800 Gbps • 400 Gbps full duplex
Maximum 10GbE port density (wire speed)	• 24
Maximum 40GbE port density (wire speed)	• 4
Maximum 100GbE port density (wire speed)	• 4
Chassis Specifications
Dimensions (W x H x D)	• 44.7 x 4.45 x 47.5 cm
Rack units	• 1 U
Weight (fully loaded)	• 10.5 kg
Total number of slots	N/A
Slots available for line cards	N/A

EX9251-8X4C : EX9251 system with 8x10GbE SFP+ ports and 4x40GbE QSFP+/100GbE QSFP28 ports, 2x AC PSUs JNP-PWR650-AC, 3x fan tray JNP-FAN-1RU, and all necessary blank panels (optics sold separately)

Data sheet Juniper EX9250 Ethernet Switch