- Spelling Out the Acronym
- What the Credential Certifies
- Where the "P" Sits on the Juniper Ladder
- The Seven Domains Behind the Title
- JN0-664 at a Glance
- Same Letters, Different Credentials
- Two Terminology Errors in the Official Overview
- Who Values This Credential
- Validity and Renewal
- Turning the Meaning Into a Study Sequence
- Frequently Asked Questions
- JNCIP-SP is Juniper Networks Certified Professional, Service Provider Routing and Switching, tested by exam JN0-664 on Junos OS 22.3.
- An active JNCIS-SP is required first; JNCIA-Junos is not the direct prerequisite.
- The written exam has 65 multiple-choice questions in 90 minutes, with a published fee of $400 plus applicable taxes.
- Seven objective headings cover OSPF, IS-IS, BGP, CoS, IP Multicast, Layer 3 VPNs and Layer 2 VPNs.
Spelling Out the Acronym
If you have landed here wondering what JNCIP-SP stands for, the short answer is this: Juniper Networks Certified Professional, Service Provider Routing and Switching. Each letter group carries meaning:
- JNCI is the Juniper Networks Certified Internet family of credentials, the naming convention Juniper has used for its certification tracks.
- P marks the Professional level, the tier above Specialist (JNCIS) and Associate (JNCIA).
- SP identifies the Service Provider Routing and Switching track, as opposed to tracks aimed at enterprise or data center environments.
The credential is governed by Juniper Networks, which current certification pages present under HPE Juniper Networking branding. If you want a broader orientation beyond the acronym, our overview What Is JNCIP-SP? covers the credential from a high level, and the page on what JNCIP-SP stands for addresses the naming question directly.
What the Credential Certifies
JNCIP-SP is aimed at networking professionals who already have advanced knowledge of Junos routing and switching and who work in or toward service provider environments. Passing the exam demonstrates written-exam command of the protocols and services a carrier-grade network depends on: interior gateway protocols, BGP at scale, quality of service, multicast, and the two families of VPN services that providers sell to customers.
It is important to read the meaning precisely. The exam is a written, English-language multiple-choice test. It measures what you can describe and how you would approach configuration, monitoring or troubleshooting in a scenario. It is not the expert-level hands-on lab examination, and it should not be described as proof of practical competence on live equipment. The objectives do ask you to "demonstrate configuration or monitoring knowledge," but that phrase describes the knowledge being assessed, not a separate practical assessment.
Where the "P" Sits on the Juniper Ladder
The Professional level is a middle-upper rung, and the prerequisite structure is part of what the title means. To earn JNCIP-SP you need an active JNCIS-SP. That requirement is specific: JNCIA-Junos is not the direct prerequisite, and specialist-level objectives are not the professional syllabus. The overview states no additional mandatory education, work-experience hours, training hours or references. Recommended training exists, but it is optional.
Juniper's general certification program rules allow written exams to be taken in any order, but every prerequisite requirement must still be fulfilled before the credential is granted. Taking an exam early does not waive the need for an active prerequisite. For the full eligibility picture, see our dedicated page on JNCIP-SP requirements and prerequisites.
| Element | What it means for JNCIP-SP |
|---|---|
| Level | Professional, above Specialist (JNCIS) and Associate (JNCIA) |
| Track | Service Provider Routing and Switching |
| Prerequisite | Active JNCIS-SP |
| Exam code | JN0-664 (Junos OS 22.3) |
| Assessment type | Written multiple-choice exam, not a hands-on lab |
The Seven Domains Behind the Title
The official exam objectives are organized under seven headings. Juniper publishes no percentage weights, so no domain should be treated as "the biggest" based on anything the issuer states. The domains below follow the order of the official objectives. For a deeper walk-through, our complete guide to all seven JNCIP-SP content areas expands each one.
Domain 1: OSPF
Concepts and operation of OSPFv2 and OSPFv3, plus scenario-based configuration and monitoring knowledge.
- Area types and operations, and LSA flooding across multiple areas
- Designated and backup designated router operation, and the SPF algorithm
- Metrics, including external metric types
- Route summarization and restriction, virtual links, and OSPFv2 versus OSPFv3
- Single-area and multi-area configuration, including OSPF routing policy
Domain 2: IS-IS
Concepts and operation of IS-IS in single-area and multi-area networks.
- Areas, levels and their operations
- Flooding of link-state PDUs through a multi-area network
- Designated intermediate system operation and the SPF algorithm
- Metrics, including wide metrics
- Route summarization, route leaking and IS-IS routing policy
Domain 3: BGP
The deepest protocol domain by sheer breadth of listed subtopics.
- Route-selection process, next-hop resolution, attributes and communities
- Regular expressions, multipath, multihop and load balancing
- Advanced options, route damping, flowspec and multiprotocol BGP
- BGP scaling through route reflection
- Scenario-based configuration and monitoring, including BGP routing policy
Domain 4: Class of Service (CoS)
How Junos OS devices classify, queue and mark traffic.
- Processing on Junos OS devices and header fields
- Forwarding classes, classification and packet loss priority
- Policers, schedulers, drop profiles and rewrite rules
Domain 5: IP Multicast
Multicast fundamentals through to policy.
- Multicast addressing, traffic flow, ASM versus SSM and RPF operation
- IGMP, PIM dense and sparse modes, and rendezvous-point operation, discovery and election
- SSM requirements, benefits and address ranges, and Anycast RP
- Configuration and monitoring knowledge for IGMP and PIM, plus multicast routing policy
Domain 6: Layer 3 VPNs
The provider-edge service model that most carriers run at scale.
- Control- and data-plane flow, full-mesh versus hub-and-spoke topologies
- VPN-IPv4 addressing, route distinguishers, route targets and route distribution
- Site of origin, sham links and VRF table-label
- Next-generation multicast VPNs, scaling, IPv6 Layer 3 VPNs and Internet access options
- Carrier-of-carriers and inter-provider VPN models, described separately
Domain 7: Layer 2 VPNs
Four distinct technology branches, each described on its own.
- BGP Layer 2 VPNs: forwarding tables, connection mapping, NLRI, route distinguishers and targets, scaling
- LDP Layer 2 circuits: virtual-circuit label, autodiscovery, Layer 2 interworking
- VPLS: BGP and LDP label distribution, route targets, multihoming, site IDs
- EVPN: MAC learning and distribution, multihoming, BGP EVPN label distribution
- Scenario-based configuration, monitoring or troubleshooting across these technologies
Key Takeaway
Do not collapse Layer 2 VPN technologies into one blob. BGP Layer 2 VPNs, LDP circuits, VPLS and EVPN are listed as separate branches, and each has its own label-distribution and control-plane story. Study them as four related but distinct subjects.
JN0-664 at a Glance
The meaning of the credential is tied to a specific exam. Here are the verified logistics:
| Item | Detail |
|---|---|
| Exam code and version | JN0-664, Junos OS 22.3 |
| Questions | 65 |
| Time | 90 minutes |
| Format | English-language written multiple-choice |
| Fee | $400 per examination plus applicable taxes |
| Delivery | Pearson VUE test center or OnVUE remote, subject to availability, technical checks and ID requirements |
| Passing score | Set statistically for the exam and reported to the candidate |
A few clarifications prevent common mistakes. First, the published passing score is not a fixed percentage. Juniper's separate practice and voucher pages mention a 70% threshold, but that figure belongs to the voucher assessment and does not establish the live exam's cut score. Our page on the JNCIP-SP passing score explains this distinction. Second, the voucher assessment's 80 minutes and three attempts do not describe JN0-664's timer or retake rules. Third, the $400 base fee is verified, but final taxes and any candidate-specific discounts depend on checkout; see the JNCIP-SP certification cost breakdown for how to think about total spend.
Retake rules are straightforward: no wait after a first failure, 14 calendar days after a second or later failure (counting from the day after the attempt), and at least 18 months before repeating an exam you have already passed. A passing result remains provisional pending security validation, and your legal name must match your government-issued identification and your CertMetrics and Pearson VUE accounts.
Same Letters, Different Credentials
"JNCIP-SP" is a compact string, and compact strings get reused. On this site the acronym refers only to the Juniper Networks professional-level credential described above. When you search, you may encounter other certifications sharing similar letters, and search snippets can blur them together. A reliable way to stay on the right track is to check three things on any page you read: the certifying body is Juniper Networks, the exam code is JN0-664, and the topics are the seven domains listed above. If any of those do not match, you are reading about something else.
Two further look-alikes within Juniper's own ecosystem deserve a note:
- JNCIS-SP is the specialist-level exam beneath this one. It is the required prerequisite, but its objectives and Junos OS version differ, and its syllabus is not the professional syllabus.
- Voucher assessment and open-learning pages are course or discount-related products, not the certification exam. Their timing, thresholds and introductory text should not be read as JN0-664 facts.
For a side-by-side look at the specialist and professional tiers, you can also review how difficulty scales in our JNCIP-SP difficulty guide.
Two Terminology Errors in the Official Overview
One detail that sets careful candidates apart: the pinned certification overview contains two expansions that do not match Juniper's own technical documentation. They are worth knowing so they do not confuse your studying.
- In the IS-IS objective, the overview writes "LSP" as Label-switched path. In IS-IS, however, LSP refers to the link-state PDUs that routers flood to share topology information. Juniper's IS-IS overview documentation identifies flooded link-state PDUs.
- In the multicast objective, the overview writes "PIM" as Physical Interface Module. The correct expansion is Protocol Independent Multicast, as Juniper's PIM overview documentation confirms.
Study the technically correct concepts: link-state PDU flooding in IS-IS, and Protocol Independent Multicast in the dense-mode and sparse-mode material. The objective headings themselves remain as published, but the technical corrections are what you will actually need on exam day.
Who Values This Credential
The title says "Service Provider," and the content bears that out. The objectives are weighted toward the technologies carriers and large network operators run: multi-area IGPs, BGP with route reflection and flowspec, carrier-grade CoS, multicast distribution, and the VPN services providers deliver to enterprise customers. Roles that typically touch this material include network engineers and architects at telecommunications carriers, managed-service providers, ISPs, and large organizations that operate their own wide-area backbone on Junos platforms.
No reliable salary statistic restricted to JNCIP-SP holders was verified, and general network-engineer pay or combined JNCIP figures should not be relabeled as JNCIP-SP earnings. If compensation is your main question, our salary guide and the ROI analysis discuss it with appropriate caution, and the JNCIP-SP jobs page looks at where the credential tends to appear.
Validity and Renewal
The credential is valid for three years. Before it expires, you can renew by passing an eligible current exam, completing a specified qualifying course, or earning a higher-level certification in the same track. Qualifying higher-level activity also renews lower active same-track credentials and active associate certifications. The reviewed policy publishes no universal CEU, CPE or CDU quota. If a certification expires, the track must be restarted, which includes re-establishing the prerequisite chain.
Turning the Meaning Into a Study Sequence
Knowing what the letters stand for is only useful if it shapes how you prepare. Because the exam covers seven domains with no published weights, a sensible approach is to order your study by dependency rather than by guesses about weighting. Here is one possible sequence, built around the domains themselves:
OSPF and IS-IS
- Rebuild area, LSA/PDU flooding and DR/DIS mechanics from first principles
- Practice summarization, route leaking and routing policy scenarios
BGP
- Walk the route-selection process and attribute behavior until it is automatic
- Add route reflection, communities, flowspec and multiprotocol BGP
CoS and IP Multicast
- Trace a packet through classification, queuing and rewrite
- Compare ASM and SSM, then RP discovery and Anycast RP
Layer 3 and Layer 2 VPNs
- Lean on your BGP foundation for route distinguishers, targets and distribution
- Keep BGP Layer 2 VPNs, LDP circuits, VPLS and EVPN in separate mental buckets
This ordering puts BGP before the VPN domains because VPN route distribution rides on multiprotocol BGP, and it separates CoS and multicast, which learners often report as weaker areas, into their own focused block. For a full plan, the JNCIP-SP study guide goes deeper, and the cheat sheet is useful for last-week review. Recommended training named by the overview includes Advanced Junos Service Provider Routing, Junos Layer 2 VPNs and Junos Layer 3 VPNs, but attendance does not guarantee a pass, and those courses are optional preparation rather than alternative objectives. More options are covered under JNCIP-SP training.
When you are ready to test recall, a JNCIP-SP practice test can show which domains need more work. Independently written practice questions support knowledge preparation only; they are not actual exam questions and do not measure hands-on skill. You can start with the main practice test site and revisit weak domains after each session.
Frequently Asked Questions
It stands for Juniper Networks Certified Professional, Service Provider Routing and Switching. It is the professional-level credential in Juniper's service provider track, earned by passing exam JN0-664.
No. JN0-664 is a 65-question, 90-minute written multiple-choice exam. It is not Juniper's expert-level hands-on lab examination, even though the objectives refer to configuration, monitoring and troubleshooting knowledge.
An active JNCIS-SP is required. JNCIA-Junos is not the direct prerequisite. No additional mandatory training hours, work-experience hours or references are stated on the credential overview.
The published fee is $400 per examination plus applicable taxes, with no member or nonmember distinction. Final checkout totals and any candidate-specific voucher discounts vary, so confirm them at registration.
It is valid for three years. You can renew by passing an eligible current exam, completing a qualifying course, or earning a higher-level certification in the same track. An expired certification requires restarting the track.