Danh mục

Model	EX9253-BASE-AC
Architecture	• Separate dedicated data, control, and management planes
Power	• Holds up to six power supplies: ₀ 100-120 V AC (3+1 redundancy) ₀ 200-240 V AC (3+1 redundancy) ₀ Maximum power draw: 2692 W (AC)
Cooling	• Internally redundant fan tray with front-to-back airflow
Weight (fully loaded)	• 54.43 kg
Maximum throughput	• Up to 4.8 Tbps
Routing Engine (RE)	• Primary and backup REs (1+1 redundancy) • 1.6 GHz, 8-core Intel Xeon processor • Up to 64 gigabytes DRAM • Dual front pluggable solid-state drive (SSD) (up to 100 GB each) • 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 ₀ Transparent failover and network recovery ₀ Graceful Routing Engine switchover (GRES) ₀ Nonstop active routing (NSR) ₀ Nonstop bridging (NSB)
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	• 2.4 Tbps/slot • 1.2 Tbps full duplex
Maximum 10GbE port density (wire speed)	• 144 (with break out cables)
Maximum 40GbE port density (wire speed)	• 36
Maximum 100GbE port density (wire speed)	• 24
Chassis Specifications
Dimensions (W x H x D)	• 48.26 x 13.25 x 76.2 cm Total depth includes standard cable manager measurements.
Rack units	• 3 U
Weight (fully loaded)	• 54.43 kg
Total number of slots	• 3
Slots available for line cards	• 2

EX9253 Line Cards

EX9253-6Q12C	EX9253 line card with 6x40GbE ports and 12x40GbE/100GbE ports
EX9253-6Q12C-M	EX9253 line card with 6x40GbE ports and 12x40GbE/100GbE MACsec AES256 ports

EX9253-BASE-AC : Base EX9253 system configuration: 3-slot EX9253-CHAS-3RU chassis with 4x fan tray JNP-C1-FAN-3RU, 1x Routing Engine EX9253-RE, 3x JNP-PWR1600-AC-BB AC PSUs, and all necessary blank panels.

Data sheet Juniper EX9250 Ethernet Switch