EX9250 Ethernet Switch Datasheet

Product Overview

The EX9250 line of Ethernet switches provides compact, programmable, and scalable core and aggregation devices for enterprise environments, reducing cost and complexity while offering carrier-class reliability. The EX9250 Ethernet switches dramatically simplify campus and data center architectures by enabling Evolved Enterprise Core deployments with Ethernet VPN, creating a path to a 100GbE core.

Product Description

The Juniper Networks^® EX9250 line of compact, programmable, and scalable Ethernet switches is ideal for aggregating access switches such as Juniper Networks EX2300, EX3400, EX4300, and EX4600 Ethernet Switches deployed in campus wiring closets and in on-premises data centers.

The EX9250 is also a key component of Juniper’s AI-Driven Enterprise. The switch decouples the overlay network from the underlay with technologies such as Ethernet VPN (EVPN) and Virtual Extensible LAN (VXLAN), addressing the needs of the modern enterprise network by allowing network administrators to create logical L2 networks over different L3 networks.

Two EX9250 chassis options are available, providing considerable deployment flexibility:

EX9251 Ethernet Switch is a fixed-configuration 1 U chassis that supports 8-port 1GbE/10GbE and 4-port 40GbE/100GbE.
EX9253 Ethernet Switch is a two-slot modular 3 U chassis that supports any combination of the following line cards:
- EX9253-6Q12C, a 12-port QSFP28 40GbE/100GbE and 6-port QSFP+ 40GbE line card
- EX9253-6Q12C-M, a 12-port QSFP28 40GbE/100GbE and 6-port QSFP+ 40GbE line card with Media Access Control Security (MACsec) support

Fully configured, a single EX9253 chassis can support up to 144 10GbE ports (all at wire speed), delivering one of the industry’s densest line-rate 10GbE port densities for this class of feature-rich and programmable switch. The EX9253 switch is capable of delivering up to 2.4 Tbps per slot.

Custom Silicon

The EX9250 switches are based on Juniper One custom silicon, an ASIC designed by Juniper that provides a programmable Packet Forwarding Engine (PFE) and natively supports networking protocols such as virtualization using MPLS over IP and overlay network protocols. ASIC micro code changes, delivered through updates to Juniper Networks Junos^® operating system, protect investments by allowing existing hardware to support new or future networking protocols.

As a key component of Juniper’s Cloud-Enabled Enterprise architecture, EX9250 switches provide a simple, open, and smart approach to building enterprise networks. The EX9250 switches support Junos Fusion Enterprise technology, which enables a large number of devices deployed throughout a building to be managed as a single logical device. The EX9250 switches also support Data Center Interconnect (DCI), critical to workload mobility and application availability, by delivering leading technologies such as MPLS, virtual private LAN service (VPLS), and EVPN.

EX9250 switches offer Evolved Enterprise Core capabilities that allow the creation of larger networks supporting both Layer 2 and Layer 3 application traffic. An Evolved Enterprise Core is enabled by combining technologies such as EVPN and VXLAN. EVPN uses control plane-based learning to ensure efficient network utilization and natively supports active/active multihoming. VXLAN overlay with EVPN allows L2 connectivity across the network while providing active/active redundancy, aliasing, and mass media access control (MAC) withdrawal. In an Evolved Enterprise Core, the provider edge (PE) switch/router can, in most cases, also use a VXLAN L3 gateway and route between VXLAN segments when required. Since the core is a standard IP network, EVPN/VXLAN allows the creation of an evolved core without having to replace the rest of the core infrastructure. Enabling an evolved core with EVPN provides flexibility by integrating with Junos Fusion and other technologies in the distribution/access layer, paving the way for a broader EVPN deployment over time.

The EX9250 line of switches is designed with simplicity in mind to enable the Self-Driving Network^™, with the goal of detecting and correcting network faults and anomalies before services or customer experiences can be impacted. The following capabilities, integrated into the EX9250 switches, make this possible.

Automation: In addition to integration with Puppet, Python, OpenStack, and other automation applications, Juniper Extension Toolkit (JET), available on the EX9250 switches, covers all phases of network design, construction, provisioning, and operations implemented with the APIs and programming tools to deliver more programmatic interaction. JET provides a notification API that allows users to subscribe to events and designate a callback function, as well as a service API that allows users to access the control plane and management plane to run operational and configuration commands.
Analytics: Junos Telemetry Interface (JTI), available on the EX9250 switches, delivers advanced telemetry for collecting the data needed to detect the state of network resources and services. This includes capacity analysis, scenario simulation, and detection, as well as prevention of network incidents. JTI uses a push model to deliver data asynchronously, eliminating the need for polling, while allowing a management station to request data once and subscribe to streaming periodic updates. As a result, JTI can effectively scale to support thousands of devices, gathering telemetry data essential to the Self-Driving Network.

Like all EX Series switches, as well as Juniper virtual and physical SRX Series Services Gateways, the EX9250 switches are supported by management applications such Junos Space^® Network Director and the Juniper Sky^™ Enterprise cloud management offering.

Table 1. EX9250 Features at a Glance

Feature	EX9251	EX9253
Architecture	Single data, control, and management plane	Separate dedicated data, control, and management planes
Power	Holds up to two power supplies: -40 to -72 V DC (1+1 redundancy) Autosensing 120/240 V AC (1+1 redundancy) Maximum power draw: 312 W (DC), 300 W (AC)	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)
Cooling	Internally redundant fan tray with front-to-back airflow	Internally redundant fan tray with front-to-back airflow
Weight (fully loaded)	23.15 lb (10.5 kg)	120 lb (54.43 kg)
Maximum throughput	Up to 800 Gbps	Up to 4.8 Tbps
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	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	Juniper Networks Junos operating system
High availability	Hardware designed for continuous operation: Secure, modular architecture that isolates faults Separate control and forwarding planes that enhance scalability and resiliency	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 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): Port ACLs VLAN ACLs 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)

EX9250 Campus Deployment Options

The EX9250 is designed primarily for the following two use cases:

EVPN multihoming or MC-LAG: A pair of interconnected EX9250 switches can be deployed to provide EVPN multihoming (ESI-LAG) or multichassis link aggregation (MC-LAG) in a collapsed core/distribution configuration. This eliminates the need for Spanning Tree Protocol (STP) across the campus network by providing multihoming capabilities from the access to the distribution layer, while the distribution to the core layer is an L3 IP fabric. EVPN multihoming also supports horizontal scaling with more than two devices in the distribution layer and can extend EVPN to the core.

Campus fabric: The AI-Driven Enterprise architecture decouples the overlay network from the underlay with technologies such as EVPN and VXLAN, addressing the needs of the modern enterprise network by allowing network administrators to create logical L2 networks over different L3 networks. Juniper supports various EVPN-VXLAN-based campus fabric architectures, including:
- Campus fabric core-distribution
- Campus fabric IP Clos

Figure 1: EX9250 as distribution and core in EVPN multihoming and campus fabric architectures.

Campus fabric architectures let you manage your campus and data center as a single IP fabric, with over-the-top (OTT) policy and control provided by Juniper. Any number of switches can be connected in a Clos network or IP fabric; EVPN-VLAN extends the fabric and connects multiple enterprise buildings while VXLAN stretches L2 across the network. An IP Clos network between the distribution and core layers can exist in two modes: centrally routed bridging overlay or edge-routed bridging overlay.

Architecture and Key Components

The EX9250 line delivers a number of common architectural elements across its campus distribution and core Ethernet switches. The REs employed by these switches run Junos OS, which processes all L2 and L3 protocols and manages the chassis. The EX9251 switch and the EX9253 line cards include Packet Forwarding Engines (PFEs) that process network traffic.

The EX9251 is designed for small enterprise campus deployments. The switch’s shallow depth makes it ideal for wiring closets and distribution facilities. To maintain uninterrupted operation, redundant variable-speed fans cool the system, as well as the RE and PFE. Redundant hot-swappable power supplies convert building power to the internal voltage required by the system.

The EX9253 is designed for medium-sized enterprises, with efficient multicast replication handling and deep buffering to ensure performance at scale. To maintain uninterrupted operation, trays with redundant, variable-speed fans cool the line cards, RE, and PFE. The EX9253 power supplies convert building power to the internal voltage required by the system. All EX9253 components are hot-swappable, and all central functions are available in redundant configurations, providing high operational availability and ensuring continuous system operation during maintenance or repairs.

Software Functionality

The EX9251 and the EX9253 switches support an extensive set of L2 and L3 services. EX9250 switches are built on Juniper One custom silicon, which supports a wide range of L2 and L3 Ethernet functionality, including 802.1Q VLAN, link aggregation, Virtual Router Redundancy Protocol (VRRP), L2-to-L3 mapping, and port monitoring. Additionally, the line cards support filtering, sampling, load balancing, rate limiting, class of service (CoS), and other key features needed for the deployment of dependable, high-performance Ethernet infrastructure.

EX9250 Routing Engine

The Routing Engine used by the EX9250 line of switches is based on the same field-proven hardware architecture used by Juniper Networks routers, bringing the same carrier-class performance and reliability to the EX9250 that Juniper routers bring to the world’s largest service provider networks. The RE’s central CPU performs all system control functions and maintains hardware forwarding table and routing protocol states for the switches.

The EX9251 supports control and management plane functionality with a single integrated RE that features an 8-core, 1.6 GHz Intel processor with 32 gigabytes of DRAM, and an internal fixed SSD providing 100 GB of storage for Junos OS images and logs. Dedicated hardware on the RE supports chassis management functions such as environmental monitoring.

The EX9253 supports control and management plane functionality with an integrated RE that features an 8-core, 1.6 GHz Intel processor with 64 gigabytes of DRAM and dual front-pluggable SSDs, each providing 100 GB of storage for Junos OS images and logs. Dedicated hardware on the RE supports chassis management functions such as environmental monitoring. Communication between the RE modules and individual line cards takes place over a dedicated internal GbE out-of-band control interface.

Both the EX9251 and EX9253 feature AUX, console, and Ethernet ports on the front panel to support out-of-band system management and monitoring, while an external USB port accommodates a removable media interface for manually installing Junos OS images.

Power

All EX9250 switches support both AC and DC power supplies; however, AC and DC supplies cannot be mixed in the same chassis.

The EX9251 supports up to two AC or DC power supplies. The AC supplies accept 100 to 240 V AC input and deliver 650 watts of power to the chassis, while the DC power supplies accept -40 to -72 V DC input and deliver 650 watts of power. The EX9251 can be provisioned with either one or two AC power supplies with high line (200-240 V AC) power inputs; one or two AC power supplies with low line (100-120 V AC) power inputs; or one or two DC power supplies.
The EX9253 supports up to six AC or DC power supplies. The AC supplies accept 100 to 240 V AC input and deliver 6600 W at 110 V and 9600 W at 220 V, while the DC power supplies accept -40 to -72 V DC input and deliver 6600 W of power to the chassis. The EX9253 can be provisioned with three to six AC power supplies with high line (200-240 V AC) power inputs; three to six AC power supplies with low line (100-120 VAC) power inputs; or three to six DC power supplies.

Table 2. EX9253 Power Consumption

	Typical Power	Maximum Power
EX9253-6Q12C Line Card	740 W	800 W
EX9253-6Q12C-M Line Card	770 W	770 W

Table 3. EX9250 Maximum Power Consumption

	EX9251	EX9253
100-120 V AC Input	300 W	2692 W
200-240 V AC Input	300 W	2692 W
-40 to -72 V DC Input	312 W	2692 W

Features and Benefits

Simplified Network Architectures

The EX9250 line of switches is ideal for simplifying campus, data center, and combined campus and data center network environments by collapsing network layers.

When deployed in an MC-LAG configuration in the campus, the EX9250 switches—working in conjunction with Juniper access layer switches like the EX4300, EX3400, and EX2300—eliminate the need for STP and collapse the core and aggregation layers, dramatically simplifying the network architecture and network operations.

Similarly, in the data center, the EX9250 switches can be used to collapse core and aggregation layers. When used with Juniper access switches in an MC-LAG configuration, the EX9251 and EX9253 reduce the number of managed devices by more than 50% and eliminate the need for STP.

In combined campus and data center environments, the EX9250 line consolidates network layers to simplify the network architecture and operations. In all scenarios, the EX9250 line of switches delivers a simple, secure, virtualized network environment that increases enterprise business agility.

High Availability

When serving as core switches, the EX9250 line delivers a number of high availability features that ensure uninterrupted, carrier-class performance in addition to redundant, hot-swappable power supplies and field-replaceable fans. Each EX9253 chassis includes an extra slot to accommodate a redundant RE to serve as a backup in hot-standby mode, ready to take over in the event of a primary RE failure. If the primary RE fails, the integrated L2 and L3 GRES feature of Junos OS, working in conjunction with the NSR and NSB features, ensures a seamless transfer of control to the backup, maintaining uninterrupted access to applications, services, and IP communications.

Carrier-Class Operating System

The EX9250 line of switches runs the same Junos OS used by all other Juniper Networks EX Series Ethernet Switches, as well as the Juniper Networks routers that power the world’s largest and most complex networks.

By using a common operating system, Juniper delivers a consistent implementation and operation of control plane features across all products. To maintain that consistency, Junos OS adheres to a highly disciplined development process that uses a single source code, follows a single release train, and employs a highly available modular architecture that prevents isolated failures from bringing down an entire system.

Figure 2: EX9250 collapses layers in campus, data center, and combined campus and data center environments.

These attributes are fundamental to the core value of the software, enabling all Junos OS-powered products to be updated simultaneously with the same software release. All features are fully regression tested, making each new release a true superset of the previous version; customers can deploy the software with complete confidence that all existing capabilities will be maintained and operate in the same way.

Simplified Management and Operations

A range of system management options are available for the EX9250 line.

The standard Junos OS CLI provides the same granular management capabilities and scripting parameters found in all Junos OS-powered devices. In addition, integrated Junos XML management protocol tools provide early detection and automatic resolution of potential problems related to the operating system.

Juniper Networks Junos Space Network Director software provides system-level management across all EX Series switches, as well as other Juniper products deployed throughout the network—all from a single console.

MACsec

The EX9253-12C8Q-M line card supports IEEE 802.1ae MACsec with AES-256 bit encryption, ensuring link-layer data confidentiality, data integrity, and data origin authentication. A single EX9253-SFL license is required for the EX9253 chassis to enable MACsec in software.

Defined by IEEE 802.1ae, MACsec provides secure, encrypted communication at the link layer that is capable of identifying and preventing threats from DoS and other intrusion attacks, as well as man-in-the-middle, masquerading, passive wiretapping, and playback attacks launched from behind the firewall. When deployed on switch ports, MACsec encrypts all traffic on the wire but not inside the switch itself. This allows the switch to apply policies such as QoS, deep packet inspection, and sFlow to each packet without compromising the security of packets on the wire.

Hop-by-hop encryption enables MACsec to secure communications while maintaining network intelligence. In addition, Ethernet-based WAN networks can use MACsec to secure links over long-haul connections. MACsec is transparent to L3 and higher layer protocols and is not limited to IP traffic; it works with any type of wired or wireless traffic traversing Ethernet links.

Scale Licenses

EX9251-ML and EX9253-ML Mega Scale license SKUs enable an EX9250 line chassis to support 512,000 FIB and ARP entries. Only one ML license is required per chassis.

Specifications

Table 4. EX9250 System Capacity

	EX9251	EX9253
Maximum throughput bandwidth/slot	800 Gbps 400 Gbps full duplex	2.4 Tbps/slot 1.2 Tbps full duplex
Maximum 10GbE port density (wire speed)	24	144 (with break out cables)
Maximum 40GbE port density (wire speed)	4	36
Maximum 100GbE port density (wire speed)	4	24

Table 5. Chassis Specifications

	EX9251	EX9253
Dimensions (W x H x D):	17.6 x 1.75 x 18.7 in. (44.7 x 4.45 x 47.5 cm)	19 x 5.217 x 30 in. (48.26 x 13.25 x 76.2 cm) Total depth includes standard cable manager measurements.
Rack units	1 U	3 U
Weight (fully loaded)	23.15 lb (10.5 kg)	120 lb (54.43 kg)
Total number of slots	N/A	3
Slots available for line cards	N/A	2

Table 6. EX9253 Line Card Capacities

Line Cards	EX9253
EX9253-6Q12C	2.4 Tbps
EX9253-6Q12C-M	2.4 Tbps

EX9253 Line Card Specifications

Dimensions (W x H x D)

1.25 x 17 x 22 in. (3.2 x 43.2 x 55.9 cm)

Weight

EX9253-6Q12C: 14.0 lb (6.6 kg)
EX9253-6Q12C-M: 14.8 lb (6.7 kg)

Feature Specifications

IEEE Compliance

IEEE 802.1AB: Link Layer Discovery Protocol (LLDP)
IEEE 802.1D-2004: Spanning Tree Protocol (STP)
IEEE 802.1p: Class-of-service (CoS) prioritization
IEEE 802.1Q: Virtual Bridged Local Area Networks
IEEE 802.1s: Multiple Spanning Tree Protocol (MSTP)
IEEE 802.1w: Rapid Spanning Tree Protocol (RSTP)
IEEE 802.3: 10BASE-T
IEEE 802.3u: 100BASE-T
IEEE 802.3ab: 1000BASE-T
IEEE 802.3z: 1000BASE-X
IEEE 802.3ae: 10-Gigabit Ethernet
IEEE 802.3ba: 40-Gigabit/100-Gigabit Ethernet
IEEE 802.3ah: Operation, Administration, and Maintenance (OAM)
IEEE 802.3ad: Link Aggregation Control Protocol (LACP)
IEEE 802.1ae: Media Access Control Security

RFC Compliance

RFC 768: UDP
RFC 783: Trivial File Transfer Protocol (TFTP)
RFC 791: IP
RFC 792: Internet Control Message Protocol (ICMP)
RFC 793: TCP
RFC 826: ARP
RFC 854: Telnet client and server
RFC 894: IP over Ethernet
RFC 903: Reverse Address Resolution Protocol (RARP)
RFC 906: TFTP Bootstrap
RFC 951, 1542: BootP
RFC 1027: Proxy ARP
RFC 1058: RIP v1
RFC 1112: IGMP v1
RFC 1122: Host Requirements
RFC 1195: Use of Open Systems Interconnection (OSI) IS-IS for Routing in TCP/IP and Dual Environments (TCP/IP transport only)
RFC 1256: IPv4 ICMP Router Discovery Protocol (IRDP)

RFC 1492: TACACS+
RFC 1519: Classless Interdomain Routing (CIDR)
RFC 1587: OSPF NSSA Option
RFC 1591: Domain Name System (DNS)
RFC 1745: BGP4/IDRP for IP-OSPF Interaction
RFC 1765: OSPF Database Overflow
RFC 1771: Border Gateway Protocol 4
RFC 1772: Application of the Border Gateway Protocol in the Internet
RFC 1812: Requirements for IP Version 4 Routers
RFC 1965: Autonomous System Confederations for BGP
RFC 1981: Path maximum transmission unit (MTU) Discovery for IPv6
RFC 1997: BGP Communities Attribute
RFC 2030: Simple Network Time Protocol (SNTP)
RFC 2068: HTTP server
RFC 2080: RIPng for IPv6
RFC 2081: RIPng Protocol Applicability Statement
RFC 2131: BOOTP/Dynamic Host Configuration Protocol (DHCP) relay agent and DHCP server
RFC 2138: RADIUS Authentication
RFC 2139: RADIUS Accounting
RFC 2154: OSPF with Digital Signatures (password, Message Digest 5)
RFC 2236: IGMP v2
RFC 2267: Network Ingress Filtering
RFC 2270: BGP-4 Dedicated autonomous system (AS) for Sites/Single Provider
RFC 2283: Multiprotocol Extensions for BGP-4
RFC 2328: OSPF v2 (Edge mode)
RFC 2338: VRRP
RFC 2362: PIM-SM (Edge mode)
RFC 2370: OSPF Opaque LSA Option
RFC 2373: IPv6 Addressing Architecture
RFC 2375: IPv6 Multicast Address Assignments
RFC 2385: TCP MD5 Authentication for BGPv4
RFC 2439: BGP Route Flap Damping
RFC 2453: RIP v2
RFC 2460: Internet Protocol, v6 (IPv6) specification
RFC 2461: Neighbor Discovery for IP Version 6 (IPv6)
RFC 2462: IPv6 Stateless Address Autoconfiguration
RFC 2463: ICMPv6
RFC 2464: Transmission of IPv6 Packets over Ethernet Networks
RFC 2474: DiffServ Precedence, including 8 queues/port
RFC 2475: DiffServ Core and Edge Router Functions
RFC 2526: Reserved IPv6 Subnet Anycast Addresses
RFC 2545: Use of BGP-4 Multiprotocol Extensions for IPv6 Interdomain Routing
RFC 2547: BGP/MPLS VPNs
RFC 2597: DiffServ Assured Forwarding (AF)
RFC 2598: DiffServ Expedited Forwarding (EF)
RFC 2710: Multicast Listener Discovery (MLD) for IPv6
RFC 2711: IPv6 Router Alert Option
RFC 2740: OSPF for IPv6
RFC 2796: BGP Route Reflection (supersedes RFC 1966)
RFC 2796: Route Reflection
RFC 2858: Multiprotocol Extensions for BGP-4
RFC 2893: Transition Mechanisms for IPv6 Hosts and Routers
RFC 2918: Route Refresh Capability for BGP-4
RFC 3031: Multiprotocol Label Switching Architecture
RFC 3032: MPLS Label Stack Encoding
RFC 3036: LDP Specification
RFC 3065: Autonomous System Confederations for BGP
RFC 3176: sFlow
RFC 3215: LDP State Machine
RFC 3306: Unicast-Prefix-based IPv6 Multicast Addresses
RFC 3376: IGMP v3
RFC 3392: Capabilities Advertisement with BGP-4
RFC 3446: Anycast Rendezvous Point (RP) Mechanism using PIM and MSDP
RFC 3478: Graceful Restart for Label Distribution Protocol
RFC 3484: Default Address Selection for IPv6
RFC 3513: Internet Protocol Version 6 (IPv6) Addressing
RFC 3569: PIM-SSM PIM Source Specific Multicast
RFC 3587: IPv6 Global Unicast Address Format
RFC 3618: Multicast Source Discovery Protocol (MSDP)
RFC 3623: OSPF Graceful Restart
RFC 3768: Virtual Router Redundancy Protocol (VRRP)
RFC 3810: Multicast Listener Discovery Version 2 (MLDv2) for IP
RFC 3973: PIM-Dense Mode
RFC 4213: Basic Transition Mechanisms for IPv6 Hosts and Routers
RFC 4291: IPv6 Addressing Architecture
RFC 4360: BGP Extended Communities Attribute
RFC 4364: BGP/MPLS IP Virtual Private Networks (VPNs)
RFC 4443: ICMPv6 for the IPv6 specification
RFC 4486: Sub codes for BGP Cease Notification message
RFC 4552: Authentication/Confidentiality for OSPFv3
RFC 4604: Using Internet Group Management Protocol Version 3 (IGMPv3)
RFC 4724: Graceful Restart Mechanism for BGP
RFC 4761: Virtual Private LAN Service (VPLS) using BGP for auto-discovery and signaling
RFC 4798: Connecting IPv6 Islands over IPv4 MPLS Using IPv6 Provider Edge Routers (6PE)
RFC 4861: Neighbor Discovery for IPv6
RFC 4862: IPv6 Stateless Address Autoconfiguration
RFC 5095: Deprecation of Type 0 Routing Headers in IPv6
RFC 5286, Basic Specification for IP Fast Reroute: Loop-Free Alternates
RFC 5306: Restart Signaling for IS-IS
RFC 5308: Routing IPv6 with IS-IS
RFC 5340: OSPF for IPv6
Draft-ietf-bfd-base-09.txt: Bidirectional Forwarding Detection
RFC 7432: BGP MPLS-based Ethernet VPN

Management and Analytics Platforms

Juniper Mist Wired Assurance for Campus
Junos Space Network Director for Campus
Junos Space^® Management

Device Management and Operations

Virtual Extensible Local Area Network (VXLAN)
REST API
NETCONF sessions over outbound HTTPS
Juniper Extension Toolkit (JET)
OpenFlow v1.3
Junos OS CLI
Out-of-band management: Serial; 10/100/1000BASE-T Ethernet
ASCII configuration file
Rescue configuration
Configuration rollback
Image rollback
SNMP: v1, v2c, v3
RMON (RFC 2819): Groups 1, 2, 3, 9
Network Time Protocol (NTP)
DHCP server
DHCP relay with Option 82
RADIUS
TACACS+
SSHv2
Secure copy
DNS resolver
Syslog logging
Environment monitoring
Temperature sensor
Configuration backup via FTP/secure copy

Network Management—MIB Support

J-Flow
RFC 1155: Structure of Management Information (SMI)
RFC 1157: SNMPv1
RFC 1212, RFC 1213, RFC 1215: MIB-II, Ethernet-like MIB, and traps
RFC 1657: BGP-4 MIB
RFC 1724: RIPv2 MIB
RFC 1850: OSPFv2 MIB
RFC 1901: Introduction to Community-based SNMPv2
RFC 1902: Structure of Management Information for Version 2 of the Simple Network Management Protocol (SNMPv2)
RFC 1905, RFC 1907: SNMP v2c, SMIv2, and Revised MIB-II
RFC 2011: SNMPv2 for IP using SMIv2
RFC 2012: SNMPv2 for transmission control protocol using SMIv2
RFC 2013: SNMPv2 for user datagram protocol using SMIv2
RFC 2096: IPv4 Forwarding Table MIB
RFC 2287: System Application Packages MIB
RFC 2465: Management Information Base for IP Version 6
RFC 2570–2575: SNMPv3, user-based security, encryption, and authentication
RFC 2576: Coexistence between SNMP Version 1, Version 2, and Version 3
RFC 2578: SNMP Structure of Management Information MIB
RFC 2579: SNMP Textual Conventions for SMIv2
RFC 2665: Ethernet-like interface MIB
RFC 2787: VRRP MIB
RFC 2819: RMON MIB
RFC 2863: Interface Group MIB
RFC 2863: Interface MIB
RFC 2922: LLDP MIB
RFC 2925: Ping/Traceroute MIB
RFC 2932: IPv4 Multicast MIB
RFC 3413: SNMP Application MIB
RFC 3826: The Advanced Encryption Standard (AES) Cipher Algorithm in the SNMP
RFC 4188: STP and Extensions MIB
RFC 4363: Definitions of Managed Objects for Bridges with traffic classes, multicast filtering, and VLAN extensions
Draft-ietf-idr-bgp4-mibv2-02.txt: Enhanced BGP-4 MIB
Draft-ietf-isis-wg-mib-07
Draft-reeder-snmpv3-usm-3desede-00
Draft-ietf-idmr-igmp-mib-13
Draft-ietf-idmr-pim-mib-09
Draft-ietf-bfd-mib-02.txt

Troubleshooting

Debugging: CLI via console, Telnet, or SSH
Diagnostics: Show, debug, and statistics commands
Firewall-based port mirroring
IP tools: Extended ping and trace
Juniper Networks commit and rollback

Environmental Ranges

Operating temperature: 32° to 104° F (0° to 40° C)
Storage temperature: -40° to 158° F (-40° to 70° C)

Operating altitude: Up to 10,000 ft (3,048 m)
Relative humidity operating: 5 to 90% (noncondensing)
Relative humidity nonoperating: 5 to 95% (noncondensing)
Seismic: Designed to meet GR-63, Zone 4 earthquake requirements

Maximum Thermal Output

(estimated, subject to change)

EX9251 AC power: 1,275 BTU/hour (360 W); DC power: 1,275 BTU/hour (360 W)
EX9253 AC power: 13,600 BTU/hour (3840 W); DC power: 13,600 BTU/hour (3840 W)

Safety and Compliance

Safety

CAN/CSA-22.2 No. 60950-00/UL 1950 Third Edition, Safety of Information Technology Equipment
EN 60825-1 Safety of Laser Products—Part 1: Equipment Classification, Requirements, and User’s Guide
EN 60950 Safety of Information Technology Equipment
IEC 60950-1 (2001) Safety of Information Technology Equipment (with country deviations)
EN 60825-1 +A1+A2 (1994) Safety of Laser Products—Part 1: Equipment Classification
EN 60825-2 (2000) Safety of Laser Products—Part 2: Safety of Optical Fiber Comm. Systems
C-UL to CAN/CSA 22.2 No.60950-1 (Second Edition)
TUV/GS to EN 60950-1, Amendment A1-A4, A11
CE-IEC60950-1, all country deviations

EMC

AS/NZS CISPR22:2009
EN 55022 2006+A1:2007 European Radiated Emissions
FCC 47CFR , Part 15 Class A (2009) USA Radiated Emissions
VCCI-V-3/2009.04 and V-4/2009.04 Japanese Radiated Emissions
BSMI CNS 13438 and NCC C6357 Taiwan Radiated Emissions
EN 300 386 V1.5.1 Telecom Network Equipment - EMC requirements
ICES-003 Issue 4, Feb 2004 Canada Radiated Emissions
CISPR 24:1997/A1:2001/A2:2002 IT Equipment Immunity Characteristics

Immunity

EN 55024:1998/A1:2001/A2:2003 Information Technology Equipment Immunity Characteristics
EN-61000-3-2 (2006) Power Line Harmonics
EN-61000-3-3 +A1 +A2 +A3 (1995) Power Line Voltage Fluctuations
EN-61000-4-2 +A1 +A2 (1995) Electrostatic Discharge
EN-61000-4-3 +A1+A2 (2002) Radiated Immunity
EN-61000-4-4 (2004) Electrical Fast Transients
EN-61000-4-5 (2006) Surge
EN-61000-4-6 (2007) Immunity to Conducted Disturbances
EN-61000-4-11 (2004) Voltage Dips and Sags

Customer-Specific EMC Requirements

GR-1089-Core Issue 6 (May, 2011) EMC and Electrical Safety for Network Telecommunications Equipment
AT&T TP-76200 Issue 17 (2012) Network Equipment Power, Grounding, Environmental, and Physical Design Requirements
Verizon TPR.9305 Issue 5 (2012) Verizon NEBS Compliance: NEBS Compliance Clarification Document
Deutsche Telekom 1TR9 (2008) EMC Specification
British Telecom EMC Immunity Requirements (2007)
IBM C-S 2-0001-005 ESD
IBM C-S 2-0001-012 Radio Frequency Electromagnetic Susceptibility
ITU-T K.20 (2011) Resistibility of telecommunication equipment installed in telecom centers to over voltages and over currents
Juniper Inductive GND (JIG)

ETSI

ETSI EN-300386-2 Telecommunication Network Equipment Electromagnetic Compatibility Requirements

Network Equipment Building System (NEBS)

SR-3580 NEBS Criteria Levels (Level 3 Compliance)
GR-63-Core: NEBS, Physical Protection

Environmental

Reduction of Hazardous Substances (ROHS) 5/6

Telco

Common Language Equipment Identifier (CLEI) code

Warranty

For warranty information, please visit https://support.juniper.net/support/

Juniper Networks Services and Support

Juniper Networks is the leader in performance-enabling services that are designed to accelerate, extend, and optimize your high-performance network. Our services allow you to maximize operational efficiency while reducing costs and minimizing risk, achieving a faster time to value for your network. Juniper Networks ensures operational excellence by optimizing the network to maintain required levels of performance, reliability, and availability. For more details, please visit https://www.juniper.net/us/en/products.html.

Ordering Information

Model Number	Description
Hardware
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)
EX9251-8X4C-DC	EX9251 system with 8x10GbE SFP+ ports and 4x40GbE QSFP+/100GbE QSFP28 ports, 2x DC PSUs JNP-PWR650-DC, 3x fan tray JNP-FAN-1RU, and all necessary blank panels (optics sold separately)
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
EX9253-BASE-DC	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-PWR1100-DC-BB DC PSUs, and all necessary blank panels
EX9253-RED-AC	Redundant EX9253 configuration: 3-slot EX9253-CHAS-3RU chassis with 4x fan tray JNP-C1-FAN-3RU, 2x Routing Engine EX9253-RE, 4x JNP-PWR1600-AC-BB AC PSUs, and all necessary blank panels
EX9253-RED-DC	Redundant EX9253 configuration: 3-slot EX9253-CHAS-3RU chassis with 4x fan tray JNP-C1-FAN-3RU, 2x Routing Engine EX9253-RE, 4x JNP-PWR1100-DC-BB DC PSUs, and all necessary blank panels
EX9253-BND1	Bundle comprised of EX9253-BASE-AC and EX9253-6Q12C line card, shipped separately as two items
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
EX9250 Pluggable Optics
EX-SFP-10GE-SR	Small form-factor pluggable transceiver (SFP transceiver) 10GbE (SFP+ transceiver) short reach (SR) optics
EX-SFP-10GE-LR	SFP transceiver 10GbE (SFP+ transceiver) long reach (LR) optics
EX-SFP-10GE-LRM	SFP transceiver 10GbE (SFP+ transceiver) long reach multimode (LRM) optics
EX-SFP-10GE-ER	SFP+ 10GBASE-ER 10GbE optics module, 1550 nm for 40 km transmission
EX-SFP-10GE-ZR	SFP+ 10GBASE-ZR 10GbE optics, 1550 nm for 80 km transmission on single-mode fiber-optic (SMF)
JNP-SFP-10G-BX10D	10G BX optics over SMF,1330 nm up to 10 km
JNP-SFP-10G-BX10U	10G BX optics over SMF, 1270 nm up to 10 km
EX-SFP-10GE-USR	SFP+ 10GbE ultra short reach; 850 nm; 10 m on OM1, 20 m on OM2, 100 m on OM3 multi-mode fiber-optic (MMF)
JNP-QSFP-4X10GE-LR	Quad small form-factor pluggable transceiver plus (QSFP+ transceiver) 40GBase optics, up to 10 km transmission on parallel single mode (4X10GbE LR up to 10 km)
JNP-QSFP-4X10GE-IR	QSFP+ 40GBASE-LR4 40 gigabit optics for up to 1 km transmission over parallel SMF
JNP-QSFP-40GE-IR4	QSFP+ 40GBASE-LR4 40 gigabit optics for up to 1 km transmission over SMF
QFX-QSFP-40G-SR4	QSFP+ 40GBASE-SR4 40 gigabit optics, 850 nm for up to 150 m transmission on MMF
JNP-QSFP-40G-LR4	QSFP+ 40GBASE-LR4 40 gigabit optics for up to 10 km transmission on SMF
QFX-QSFP-40G-ESR4	QSFP+ 40GBASE-eSR4 40 gigabit optics, 850 nm for up to 300 m transmission on MMF
JNP-QSFP-40GE-ER4	QSFP+ 40GBASE-ER4 40 gigabit optics, 1310 nm for up to 40 km transmission on SMF
JNP-QSFP-40G-LX4	QSFP+ 40GBASE-LX4 40 gigabit optics for up to 150 m transmission with OM4 over duplex MMF
JNP-QSFP-100G-LR4	QSFP28 100GBASE-L4 optics for up to 10 km transmission over serial SMF
JNP-QSFP-100G-SR4	QSFP28 100GBASE-SR4 optics for up to 100 m transmission over parallel MMF
JNP-QSFP-100G-CWDM	QSFP28 100GBASE-CWDM4 optics for up to 2 km transmission over serial SMF
JNP-QSFP-100G-PSM4	QSFP28 100GBASE-PSM4 optics for up to 2 km transmission over parallel SMF
EX-SFP-10GE-DAC-3M	SFP+ 10GbE direct attach copper (twinax copper cable), 3 M
EX-SFP-10GE-DAC-1M	SFP+ 10GbE direct attach copper (twinax copper cable), 1 M
EX-SFP-10GE-DAC-5M	SFP+ 10GbE direct attach copper (twinax copper cable) 5 m
QFX-QSFP-DAC-1M	QSFP+ Cable Assy, 1 m, 30 AWG, passive, programmable ID
JNP-QSFP-DAC-2M	QSFP+ 40GBASE direct attach copper Cable 2-meter
QFX-QSFP-DAC-3M	QSFP+ Cable Assembly, 3 m, 30 AWG, passive, programmable ID
JNP-QSFP-DAC-5M	QSFP+ 40GBase direct attach copper Cable 5-meter, passive
EX-QSFP-40GE-DAC-50CM	QSFP+ 40GbE direct attach copper (twinax copper cable) for 50 cm transmission
JNP-100G-DAC-1M	QSFP28 to QSFP28 Ethernet direct attach copper (twinax copper cable) 1 m
JNP-100G-DAC-3M	QSFP28 to QSFP28 Ethernet direct attach copper (twinax copper cable) 3 m, active
QFX-QSFP-DACBO-1M	QSFP+ to SFP+ 10GbE direct attach breakout copper (twinax copper cable) 1 m
QFX-QSFP-DACBO-3M	QSFP+ to SFP+ 10GbE direct attach breakout copper (twinax copper cable) 3 m
JNP-QSFP-DACBO-10M	QSFP+ to SFP+ 10GbE direct attach breakout copper (twinax copper cable) 10 m, active
QFX-SFP-DAC-1MA	SFP+ 10GbE direct attach copper (active twinax copper cable) 1 m
QFX-SFP-DAC-3MA	SFP+ 10GbE direct attach copper (active twinax copper cable) 3 m
QFX-SFP-DAC-5MA	SFP+ 10GbE direct attach copper (active twinax copper cable) 5 m
QFX-SFP-DAC-7MA	SFP+ 10GbE direct attach copper (active twinax copper cable) 7 m
QFX-SFP-DAC-10MA	SFP+ 10GbE direct attach copper (active twinax copper cable) 10 m
JNP-QSFP-DAC-5MA	QSFP+ 40GBASE direct attach copper cable 5 m, active
JNP-QSFP-DAC-7MA	QSFP+ 40GBASE direct attach copper cable 7 m, active
JNP-QSFP-DAC-10MA	QSFP+ 40GBASE direct attach copper cable 10 m, active
JNP-QSFP-DACBO-5MA	QSFP+ to SFP+ 10GbE direct attach breakout copper (twinax copper cable) 5 m, active
JNP-QSFP-DACBO-7MA	QSFP+ to SFP+ 10GbE direct attach breakout copper (twinax copper cable) 7 m, active
EX9250 Software Feature Licenses
EX9251-AFL	EX9251 Advanced Feature License
EX9251-ML	Mid-scale license to enable 512,000 FIB and ARP entries on EX9251 chassis (one required per chassis)
EX9253-AFL	EX9253 Advanced Feature License
EX9253-ML	Mid-scale license to enable 512,000 FIB and ARP entries on EX9253 chassis (one required per chassis)
EX9253-SFL	Security feature license for EX9250 to enable MACsec on EX9253-6Q12C-M
EX9250 Power Cords
CBL-M-PWR-RA-AU	AC power cord, Australia (SAA/3/15), C19, 15 A/250 V, 2.5 m, right angle
CBL-M-PWR-RA-CH	AC power cord, China (GB 2099.1-1996, Angle), C19, 16 A/250 V, 2.5 m, right angle
CBL-M-PWR-RA-EU	AC power cord, Cont. Europe (VII), C19, 16 A/250 V, 2.5 m, right angle
CBL-M-PWR-RA-IT	AC power cord, Italy (I/3/16), C19, 16 A/250 V, 2.5 m, right angle
CBL-M-PWR-RA-JP	AC power cord, Japan (NEMA LOCKING), C19, 20 A/250 V, 2.5 m, right angle
CBL-M-PWR-RA-TWLK-US	AC power cord, U.S. (NEMA LOCKING), C19, 20 A/250 V, 2.5 m, right angle
CBL-M-PWR-RA-UK	AC power cord, UK (BS89/13), C19, 13 A/250 V, 2.5 m, right angle
CBL-M-PWR-RA-US	AC power cord, U.S./Canada (N6/20), C19, 20 A/250 V, 2.5 m, right angle
CBL-PWR-C19S-162-JP	AC power cord, Japan, NEMA 6-20 to C19, 16 A/250 V, 2.5 m, straight
CBL-PWR-C19S-162-JPL	Power cord, AC, Japan/U.S., C19 at 70-80 mm, 16 A/250 V, 2.5 m, straight, locking plug
CBL-PWR-RA-JP15	AC power cable: JIS 8303 15 A/125 V 2.5 m length for Japan, right angle
CBL-PWR-RA-TWLK-US15	AC power cable: NEMA L5-15P (twist lock) 15 A/125 V 2.5 m length for U.S., Canada, and Mexico, right angle
CBL-PWR-RA-US15	AC power cable: NEMA 5-15 15 A/12 5 V 2.5 m length for North America, parts of South America, parts of Central America, parts of Africa, and parts of Asia, right angle
EX9253 Field Replaceable Units
EX9253-LC-BLNK	EX9253 line card blank cover panel
EX9253-RE	EX9253 Routing Engine
EX9253-CHAS-3RU	EX9253 chassis, 3 U
JNP-FAN-3RU	Universal fan tray, 3 U
JNP-PWR1600-AC	Universal AC power supply, 1600 W, spare
JNP-PWR1100-DC	Universal DC power supply, 1100 W, spare
EX9253-RE-BLNK	EX9253 RE blank cover panel
JNP-MPC2	Modular Port Concentrator, 6xQSFP+
JNP-MIC1	12x100GbE/12x40GbE/48x10GbE Modular Interface Card (MIC)
JNP-MIC1-MACSEC	12x100GbE/12x40GbE/48x10GbE MACsec MIC
JNP-CM-3RU	3 U universal chassis cable manager with air filter
EX9251 Field Replaceable Units
JNP-FAN-1RU	Universal fan tray, 1 U
JNP-PWR650-AC	Universal AC power supply, 650 W, spare
JNP-PWR650-DC	Universal DC power supply, 650 W, spare

About Juniper Networks

At Juniper Networks, we are dedicated to dramatically simplifying network operations and driving superior experiences for end users. Our solutions deliver industry-leading insight, automation, security and AI to drive real business results. We believe that powering connections will bring us closer together while empowering us all to solve the world’s greatest challenges of well-being, sustainability and equality.

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