Juniper Networks Certified Professional, Service Provider (JNCIP-SP)

JN0-664 · ● Active · Professional · Juniper Networks

Exam facts

Vendor source — HPE Juniper JNCIP-SP Certification ↗

Exam overview — Open Learning JNCIP-SP Exam Overview ↗

Practice exams — Juniper Certification Practice Exams ↗

About

JNCIP-SP is the professional-level certification in Juniper's Service Provider Routing and Switching track, designed for networking professionals with advanced knowledge of routing and switching implementations on Junos OS. The exam validates expertise in carrier-class routing protocols, MPLS Layer 2 and Layer 3 VPN scaling, multicast, segment routing, and troubleshooting in large-scale service provider networks. Prerequisite: JNCIS-SP certification is strongly recommended but not strictly enforced.

Domain context — Networking / Service Provider

Advanced routing and switching infrastructure in service provider and large-scale enterprise networks, with emphasis on carrier-class protocols, MPLS, VPNs, and traffic engineering on Juniper Junos OS platforms.

Read full deep dive — Juniper Ecosystem →

Topics covered

• OSPF — Multi-area OSPF design, LSA types, metric calculation, convergence behavior in carrier-grade topologies (~15–20% weight)
• IS-IS — Level 1/Level 2 adjacencies, route summarization, wide metrics, metric tuning for large-scale routing domains (~15–20% weight)
• BGP — BGP route reflectors, confederation design, inter-AS peering, policy, route filtering, community manipulation (~20–25% weight)
• Class of Service (CoS) — Traffic classification, congestion management, scheduling, policer configuration, rate limiting
• IP Multicast — IGMP, PIM dense mode, PIM sparse mode, SSM (Source Specific Multicast), multicast VPN design
• Layer 3 VPN (L3VPN) — VRF configuration, PE/CE interaction, route target filtering, MPLS/BGP signaling
• Layer 2 VPN (L2VPN) — LDP, Circuit Cross-Connect (CCC), Kompella signaling, VPWS and VPLS scaling
• MPLS and traffic engineering — LDP configuration, RSVP-TE signaling, constraint-based routing, fast reroute (FRR), point-to-multipoint LSP
• Segment Routing — SRv6, segment identifier semantics, steering, interoperability with BGP/IS-IS
• Inter-AS routing — Option A/B/C design, ASBR behavior, route leaking, scalability considerations

Source: NWExam JNCIP-SP Certification Exam Syllabus ↗

Common skills at Networking · Professional

• Advanced routing protocol design and optimization in multi-vendor environments
• Troubleshooting complex BGP, OSPF, and IS-IS routing behavior using command-line tools and log analysis
• Carrier-class network architecture and high-availability design patterns
• Service provider operational workflow: configuration management, change control, monitoring, incident response
• Capacity planning and traffic engineering in backbone networks
• Understanding VPN technologies (MPLS, segment routing, underlay/overlay models) at implementation depth

Recommended courses at Networking · Professional

Course-selection rule: Hands-on lab environments using Juniper vMX or physical hardware are essential at professional level. Prioritize official courses or third-party providers with live topology access.

Practice exams

Note: Official Juniper practice exams are strongly recommended. Third-party providers are available but verification of question accuracy against 2026 exam content is essential.

Books

Book rule: No single comprehensive textbook exists specifically for JNCIP-SP JN0-664 at this time. Day One books (free from Juniper) cover MPLS and related technologies in depth. Supplementary reading from official Juniper documentation and vendor whitepapers is required for BGP route reflectors, multicast, and segment routing.

Typical job titles at Networking · Professional

Senior Service Provider Network Engineer · MPLS Engineer (Senior) · Carrier Routing Engineer · Network Architect (SP) · Backbone Network Engineer

(Job titles drawn from current job-board postings and service provider company career pages that list JNCIP-SP or equivalent expertise as required or strongly preferred.)

Salary

Salary rule: JNCIP-SP is a niche certification; most salary data comes from general "Senior Network Engineer" or "Service Provider Engineer" roles. Regional variation is significant (Bay Area, London, Frankfurt command premiums). Certifications alone typically add 5–10% to base network engineering salary. This range reflects senior roles in tier-1 carriers and large cloud/CDN operators requiring advanced routing expertise.

Skills validated

• OSPF and IS-IS configuration, debugging, and optimization for carrier-scale networks
• BGP route reflector design and policy implementation
• MPLS LDP and RSVP-TE signaling, traffic engineering
• Layer 3 VPN (MPLS/BGP) architecture and inter-AS route distribution
• Layer 2 VPN scaling (Kompella, LDP signaling)
• IP multicast design (PIM-DM, PIM-SM, SSM, MVPN)
• Class of Service implementation (scheduling, policing, traffic shaping)
• Segment Routing (SRv6) fundamentals and deployment models
• Junos operational commands for protocol diagnostics (show, traceoute, operational groups)
• Hands-on configuration and troubleshooting on vMX and physical Juniper hardware

Related certifications

• Prerequisite from: JNCIS-SP (JN0-363) ↗ — Specialist level (Service Provider Routing and Switching)
• Prerequisite for: JNCIE-SP ↗ — Expert level lab exam (6 hours, hands-on network build)
• Complements: JNCIP-ENT (Enterprise Routing & Switching Professional) ↗ — Different domain focus but overlapping OSPF/BGP/MPLS concepts
• Vendor overview: Juniper Networks Vendor Overview ↗

Sources

• HPE Juniper JNCIP-SP Certification Page
• Juniper Open Learning JNCIP-SP Exam Overview
• Juniper Certification Practice Exams
• NWExam JNCIP-SP Certification Exam Syllabus
• CBT Nuggets JNCIP-SP Course
• Juniper Day One Books — MPLS and Segment Routing
• Glassdoor Senior Network Engineer Salary
• PayScale Sr. Network Engineer
• Indeed Senior Network Engineer Salaries

Last verified: 2026-05-01 Parent ecosystem: Juniper Ecosystem Parent domain: Networking