Juniper EX9253

Power 

Separate dedicated data, control, and management planes

Cooling 

Holds up to six power supplies:
• -40 to -72 V DC (3+1 redundancy)
• 100-120 V AC (3+1 redundancy)
• 200-240 V AC (3+1 redundancy)
• Maximum power draw: 2692 W (DC), 2692 W (AC)

Weight (fully loaded) 

Internally redundant fan tray with front-to-back airflow

Maximum throughput 

120 lb (54.43 kg)

Routing Engine (RE) 

Up to 4.8 Tbps

Operating system 

Master 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

High availability 

Juniper Networks Junos operating system

Layer 2 features 

Hardware designed for continuous operation:
• Secure, modular architecture that isolates faults
• Separate control and forwarding planes that enhance scalability and resiliency
• Transparent failover and network recovery
• Graceful Routing Engine switchover (GRES)
• Nonstop active routing (NSR)
• Nonstop bridging (NSB)

Layer 3 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)

Hardware tunneling 

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)

Multicast 

GRE tunnels
MPLS capabilities (Advanced Feature License)
VPLS
BGP/MPLS VPNs
Ethernet VPNs

Firewall flters 

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)

Quality of service (QoS) 

Ingress and egress L2-L4 access control lists (ACLs):
Port ACLs
VLAN ACLs
Router ACLs
Control plane denial-of-service (DoS) protection

Virtualization 

16,000 policers per chassis
8 egress queues per port
Weighted random early detection (WRED) scheduling
Weighted round-robin (WRR) queuing
Strict priority queuing

Management 

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 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)