JNCIP-SP (JN0-664) is a professional level certification for Juniper service providers in the routing and switching direction, aimed at senior engineers with complex network architecture design, deployment, and troubleshooting capabilities. It is a necessary path to JNCIP-SP expert level certification.

The 2026 exam is based on Junos OS version 22.3 and focuses on providing advanced routing services in the context of shopping malls. MPLS, VPN, multicast, and traffic engineering comprehensively validate practical operation and maintenance capabilities.

1. Basic Exam Information

Exam code: JN0-664

Full certification name: Juniper Networks Certified Internet Professional – Service Provider Routing and Switching

Prerequisite: Must hold JNCIS-SP (JN0-363) certification

Exam duration: 90 minutes

Number of questions: 65 multiple-choice questions (single choice+multiple choice)

Scoring rules: Passing/Not passing judgment, passing line with an accuracy rate of approximately 60%-70%

Exam fee: $400

Certification validity period: 3 years, upon expiration, reexamination or completion of continuing education renewal is required

Junos version: Junos OS 22.3

Target audience: Service provider network engineers, core network architects, senior operation and maintenance experts with 3-5 years of practical experience in complex network operations

2. 2026 Exam Outline

The exam focuses on building the full stack capability of service provider networks, with BGP, MPLS, and VPN as the absolute core, accounting for over 60% of the weight.

(1) Advanced OSPF (12%)

OSPFv2/v3 multi zone architecture, LSA type and flooding mechanism, SPF algorithm and routing computation; Regional type (backbone/ordinary/Stub/NSSA), virtual link, route aggregation and filtering; External routing types (E1/E2), metric adjustment, load balancing, and fault convergence; Configuration, monitoring, and troubleshooting

(2) Advanced IS-IS (10%)

Principles of IS-IS link status, SPF calculation, integration of CLNS and IP, and regional partitioning (Level-1/Level-2); Route leakage, aggregation, metrics, authentication, and security; Multi topology, traffic engineering adaptation, troubleshooting and optimization

(3) Advanced BGP (25%)

BGP path selection process, full attributes; Regular expressions and routing strategies; Route reflector, federation BGP Flowspec、 Large scale deployment optimization; MPLS BGP linkage, VPNv4/VPNv6, EVPN control plane, troubleshooting

(4) MPLS Fundamentals and Traffic Engineering (15%)

MPLS label distribution, label stack, forwarding plane; LSP establishment, protection, and fast rerouting (FRR); Traffic engineering constraint path, bandwidth reservation CSPF、 Hot backup; Configuration, monitoring, and troubleshooting

(5) Three-layer VPN (12%)

BGP/MPLS L3VPN architecture VRF, RD, RT, and Label distribution; Cross domain VPN (Option A/B/C), Hub Spoke, fully interconnected topology; Route leakage, filtering, optimization, and troubleshooting; IPv6 L3VPN (6VPE) Fundamentals

(6) Layer 2 VPN (10%)

BGP L2VPN, LDP Layer 2 Circuit, VPLS, EVPN basics; Control plane and data plane, MAC learning, flooding mechanism; Configuration, monitoring, and troubleshooting (show l2VPN, show evpn)

(7) IP multicast (8%)

PIM‑SM, PIM‑DM, SSM, IGMPv3, MSDP, Anycast‑RP; multicast routing, RP discovery, range control, policy filtering; Service provider multicast deployment and troubleshooting

(8) Service Quality (CoS) and Automation (8%)

Classification, tagging, queue scheduling, congestion management, traffic shaping; CoS configuration based on interfaces/protocols/applications; Junos XML API、PyEZ、 Configure templates and script deployment

3. Key changes in the 2026 exam

Version Upgrade: Upgraded from Junos OS 20.x to 22.3, adding new features such as EVPN, BGP Flowspec, and width measurement

EVPN weight enhancement: Strengthen EVPN control plane, MAC/IP routing, traffic optimization, in line with the trend of cloud network integration

Practical Enhancement: The proportion of scenario based questions has increased, with a focus on complex network fault location and solution design

Automation integration: adding basic automation tools and configuration management test points, adapted to DevOps operations and maintenance

4. Efficient exam preparation plan (recommended 3-4 months)

(1) Phased planning

Foundation consolidation (1 month): Systematically review the core content of JNCIS SP, focusing on mastering the basics of OSPF/IS-IS/BGP, and familiarize oneself with the Junos 22.3 command system.

Module tackling (1.5 months): Deep learning according to the exam syllabus module, allocate 50% of the time to BGP, MPLS, and VPN, and complete the configuration based on official documents and experimental manuals.

Practical Enhancement (1 month): Use vMX/vSRX and EVE-NG to build a service provider topology, complete the entire process configuration, monitoring, and troubleshooting, and focus on training in complex scenario fault analysis.

Sprint mock exam (2 weeks): Complete simulated questions within a limited time, review wrong questions, organize high-frequency commands and troubleshooting processes, and strengthen answering speed and accuracy.

(2) Core Learning Resources

Official materials: JN0-664 official exam syllabus, Junos OS 22.3 documentation, Juniper Open Learning advanced course

Recommended training: Advanced Junos Service Provider Routing, Junos Layer 2/3 VPNs

Experimental platform: vMX/vSRX virtual devices EVE‑NG, Juniper vLabs

Auxiliary materials: Juniper Networks Certified Internet Professional (JNCIP-SP) Study Guide, SPOTO Practical Question Bank

5. Exam-taking skills

In terms of time allocation, you need to complete 65 questions in 90 minutes, with each question taking about 1.4 minutes. The easy questions will be marked first, followed by the difficult ones, and the difficult questions will be dealt with last. Pay attention to carefully reviewing multiple choice questions, clarify requirements such as "all correct" and "best solution," and eliminate obvious incorrect options. Scene problems extract key information such as topology, protocol, and fault phenomena, and match corresponding troubleshooting commands and solutions. Proficient in analyzing outputs such as show BGP, show MPLS LSP, show VRF, etc., to quickly locate problems.

6. Certification Value and Career Development

JNCIP-SP is the gold certification in the service provider network field, with high global recognition and significant salary premium. The prerequisite of JNCIE‑SP is also the core competitiveness of leading enterprises in telecommunications, finance and the Internet.

Summary: The 2026 JNCIP-SP JN0-664 exam is an authoritative validation of advanced network capabilities for service providers, with the core being proficiency in BGP/MPLS/VPN, proficiency in Junos operations, and the ability to troubleshoot complex scenarios.

The SPOTO exam preparation course focuses on practical experience, combined with systematic learning and extensive experiments, to help you efficiently pass the level in one go and lay a solid foundation for career development!