JNCIP-SP Cheat Sheet 2026: One-Page Review of Must-Know Facts

The Exam at a Glance: JN0-664 Logistics

This page condenses what you need to recall about the Juniper Networks Certified Professional, Service Provider Routing and Switching (JNCIP-SP) into a single scannable reference. The credential is governed by Juniper Networks (current pages use HPE Juniper Networking branding) and targets networking professionals with advanced Junos routing and switching knowledge. The exam code is JN0-664, aligned to Junos OS 22.3. Note that this is a different release from the one named in the JNCIS-SP exam, so do not assume the two blueprints share a version baseline.

For a deeper look at how the pieces fit together, see our complete guide to all 7 JNCIP-SP content areas.

Eligibility, Fees and Account Rules

Prerequisite

You need an active JNCIS-SP. JNCIA-Junos is not the direct prerequisite, and specialist-level objectives are not the professional syllabus. The overview states no additional mandatory work-experience hours, training hours or references; recommended training is optional. Per the program FAQs, written exams may be taken in any order, but every prerequisite certification requirement must still be fulfilled and none is waived. Taking the exam early does not mean you receive the credential early. Full details are in our JNCIP-SP requirements and eligibility guide.

Money

The published examination fee is $400 per examination plus applicable taxes. No member versus nonmember price distinction is published. Final regional checkout totals and candidate-specific voucher discounts can vary, so confirm at checkout. Do not confuse course charges, or the voucher-assessment settings, with the exam fee. Our JNCIP-SP certification cost breakdown goes further.

Identity and delivery

• Your legal name must match your government-issued photo and signature identification, and also your CertMetrics and Pearson VUE accounts.
• OnVUE remote delivery involves technical checks and identification requirements.
• A passing result is provisional pending security validation; valid results are available in CertMetrics within three business days under the published policy.

Scheduling questions are covered in JNCIP-SP exam dates and scheduling.

The Seven Objective Headings

The official overview lists seven headings. It publishes no percentage weights, so no domain can be called "highest-weighted." Treat any third-party claim of exact percentages or allocations with suspicion. Each heading follows the same pattern: describe concepts, operation or functionality, then, given a scenario, demonstrate configuration or monitoring knowledge.

1. OSPF
2. IS-IS
3. BGP
4. Class of Service (CoS)
5. IP Multicast
6. Layer 3 VPNs
7. Layer 2 VPNs

OSPF and IS-IS Quick Facts

Memory hooks: OSPF's DR/BDR election applies on broadcast segments, while IS-IS uses a DIS with no backup. Route leaking in IS-IS is the mechanism for moving prefixes between levels, and wide metrics extend the metric range beyond the narrow format. Learners in public discussions frequently report IS-IS as a weaker area, so give it dedicated time.

BGP Quick Facts

Two threads tie BGP to the later VPN domains: multiprotocol BGP is the transport for VPN route distribution, and communities and policy are the tools you will reuse when reasoning about route targets. Make sure you can walk through route selection step by step and explain why a next hop that cannot be resolved makes a route unusable.

CoS and IP Multicast Quick Facts

A useful mental pipeline: traffic is classified into a forwarding class with a loss priority, queued and scheduled, subject to drop profiles under congestion, and optionally re-marked by rewrite rules on egress. If you can narrate that flow for a single packet, many CoS questions become easier.

Reverse path forwarding is the check that underpins multicast forwarding decisions, so a broken unicast route can masquerade as a multicast problem. Candidates often report multicast alongside CoS as a gap area; our JNCIP-SP study guide suggests how to allocate time to them.

Layer 3 and Layer 2 VPN Quick Facts

The classic distinction: the route distinguisher makes overlapping customer prefixes unique, while the route target controls which VRFs import and export them. Mixing those two roles up is one of the most common conceptual mistakes.

Read the four branches as separate topics. Learners commonly cite VPLS as a stumbling block, so be sure you can contrast BGP-signaled and LDP-signaled VPLS, and explain how EVPN's control-plane MAC distribution differs from data-plane learning.

Two Terminology Errors in the Official Overview

The pinned overview contains two wording mistakes. Know the correct expansions so you do not memorize the wrong ones:

• IS-IS LSP: the overview expands it as "Label-switched path." In IS-IS, LSP means a flooded link-state PDU. Juniper's IS-IS routing overview documentation identifies link-state PDUs.
• PIM: the overview writes "Physical Interface Module." PIM is Protocol Independent Multicast, per Juniper's PIM overview documentation.

Retakes, Results and Renewal

Retake rules

• First failure: no waiting period.
• Second and subsequent failures: wait 14 calendar days, counted from the day after the failed attempt.
• Repeating an exam you already passed requires at least 18 months between attempts.

Staying certified

The credential is valid for three years. Before expiry you can pass an eligible current exam, complete a specified qualifying course, or earn a higher-level certification in the same track. Qualifying higher-level activity also renews lower active same-track credentials and active associate certifications. No universal CEU/CPE quota is published in the reviewed policy. If a certification expires, you must restart the track.

Look-Alikes That Mislead Candidates

• Voucher assessment vs. live exam: the voucher assessment test lists 80 minutes, three attempts and a 70% threshold for a discount voucher, with a 30-day voucher-use window. None of that describes JN0-664's question count, timer, pass mark or retake policy, and the 30-day window is not certification validity.
• Practice-test threshold: the official practice page's 70% figure explicitly does not establish the live passing score. Read more in what you need to pass.
• Open Learning course: that is course access, not the examination.
• Other credentials with the same acronym: several unrelated certifications abbreviate similarly. Ignore their fees, dates and pass rates entirely.
• Pass rate and salary claims: no verified JNCIP-SP-specific figures exist for either, so be skeptical of precise numbers. See the pass rate discussion and salary analysis for context.

Sequencing Your Review Around the Domains

One approach that respects how the topics build on each other: start with the IGPs, move to BGP, then spend concentrated time on CoS and multicast before tackling the VPN domains, which lean on everything earlier.

Then reserve a final stretch for timed multiple-choice practice. Use our JNCIP-SP practice tests to check readiness across all seven headings, and compare your plan against how hard the exam really is. Practice material tests knowledge only; it is not actual exam content or a measure of hands-on skill. Recommended optional training named in the overview is Advanced Junos Service Provider Routing, Junos Layer 2 VPNs and Junos Layer 3 VPNs, and attendance does not guarantee a pass.

Frequently Asked Questions