and centralized management from the Juniper Mist™ cloud, it

dramatically simplifies deployment and ongoing management.

For features and benefits of Juniper Session Smart Routers, as well as ordering information, see the Session Smart

Routing datasheet.

Architecture and key components

By combining the AI-native intelligence of Juniper® WAN Assurance

with the Session Smart Router, enterprises gain industry-leading

automation and insight to ensure the best user, device, and

application experiences in their branch and remote locations. The

Juniper WAN Assurance cloud service simplifies operations,

provides superior visibility into end user experiences, and reduces

the mean time to repair for SD-WAN issues.

The Juniper Networks SSR400 line of routers provides the

hardware foundation for this service-centric fabric. These

appliances feature a service-centric control plane and service-aware

data plane that offer robust IP routing, a feature-rich policy

management engine, improved visibility, and proactive analytics.

This architecture moves beyond the limitations of traditional,

tunnel-based solutions by delivering a single, unified platform for

powerful and secure connectivity.

SSR400 fixed configuration appliances

The fixed configuration appliances in the SSR400 line are designed

for a variety of branch sizes:

• The SSR400: Ideal for small branches and retail locations

• The SSR440: Designed to serve the needs of medium-sized

branches

These appliances run the FIPS 140-3 Level 2 compliant Session

Smart Router software, which provides secure and resilient WAN

connectivity as a core component of the Juniper AI-native SD-

WAN solution.

Juniper WAN Assurance

WAN Assurance is a cloud service that brings AI-native automation

and service levels to Juniper SSR SD-WAN routers, complementing

the Juniper AI-native SD-WAN solution. WAN Assurance

transforms IT operations from reactive troubleshooting to proactive

remediation, turning insights into actions and delivering operational

simplicity with seamless integration into existing deployments.

• SSR Series SD-WAN routers, deployed as secure SD-WAN

edge devices, deliver the rich streaming telemetry that

provides the insights needed for WAN health metrics and

anomaly detection. This data is leveraged within the Mist cloud

and Marvis AI engine, driving simpler operations, reducing

mean time to repair (MTTR), and providing greater visibility

into end user experiences.

• Insights derived from SSR Series SD-WAN gateway telemetry

data allow WAN Assurance to compute unique “User Minutes”

that indicate whether users are having a good experience.

• Marvis® AI Assistant for WAN allows you to ask direct

questions like, “Why is my Zoom call bad?” and provides

complete insights, correlation, and actions.

• Marvis Actions identify and summarize issues such as

application latency conditions, congested WAN circuits, or

negotiation mismatches.

For detailed features and benefits of Juniper Mist WAN Assurance,

see the WAN Assurance datasheet.

Simplifying branch deployments (secure connectivity/SD-WAN)

SSR400 Routers deliver fully automated SD-WAN to both

enterprises and service providers.

• Configuration templates and ZTP features simplify branch

network connectivity for initial deployment and ongoing

management.

• SSR400 line of SD-WAN routers offer best-in-class secure

connectivity.

• The SSR400 line of SD-WAN routers efficiently utilize multiple

links and load balance traffic across the enterprise WAN,

blending traditional MPLS with other connectivity options such

as broadband internet, leased lines, WCDMA/LTE/5G, and

more. Policy- and application-based forwarding capabilities

enforce business rules created by the enterprise to steer

application traffic toward a preferred path.

Features and benefits

Table 1: Features and benefits

Category

Features

System and network services

SNAT/DNAT, destination NAPT, shared NAT pool, IPv4/IPv6, DHCP client, DHCP relay, DHCP server, DHCP server extensions, DHCPv6 PD, DNS client,

PPPoE, Proxy ARP, NAT traversal, BFD, inline flow performance monitoring, extended firewall pinhole, path MTU discovery, MSS auto adjust, DSCP based

service identification for IPsec

Advanced services

Secure Vector Routing (SVR), Multipoint SVR, IPv6 SVR, overlapping IP service segmentation, Ethernet over SVR, application identification

Routing

Service based routing, static routing, BGPv4, BGP route reflector, BGP graceful restart, BGP over SVR, BGP route map, BGP prefix list, OSPFv2, BGP VRF,

OSPF VRF

SSR400 Line of Routers Datasheet

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