JNCIP-SP study guide
JNCIP-SP · Work through your exam, one topic at a time.
JNCIP-SP is the Professional-level written certification in Juniper's Service Provider Routing and Switching track, sitting above JNCIS-SP and below the hands-on JNCIE-SP lab. Juniper describes its certification program as "a multi-tiered program of written and hands-on lab exams," and the Service Provider track is published as JNCIA-Junos → JNCIS-SP → JNCIP-SP → JNCIE-SP. The Professional tier is aimed at engineers who already hold a Specialist-level credential and work day to day on service provider networks - designing, deploying, and troubleshooting routing and switching in provider environments rather than enterprise campus fabrics. Because Juniper publishes the track as a ladder, expect the written exam to assume working fluency in the concepts tested at JNCIS-SP and to push into deeper service provider routing scenarios. Preparation guidance from Juniper is generic to all tracks: live training, self-paced courses, free learning materials, and downloadable curriculum paths that map recommended prep courses to each certification. Juniper also states that IT pros trained on its products are 34% more productive, which is marketing rather than exam advice. Topics on this exam: Service Provider Routing and Switching. The JNCIP-SP study guide has 1 section and about 427 words.
01Service Provider Routing and Switching
This domain covers how Junos devices build and exchange routes in a service provider core and how those routes become customer services. The exam tests reasoning about IS-IS/OSPF, BGP policy and scaling, MPLS label distribution, and the L2/L3 VPN constructs that ride on them. Run one IGP (IS-IS Level 2 or OSPF area 0) across the core and put loopbacks in it; VPNv4 next-hop resolution depends on the next hop being reachable in inet.3, not just inet.0. Scale iBGP with route reflectors (cluster IDs) or confederations; a reflector reflects only its best path and adds originator ID and cluster list to prevent loops.
427 words, about 2 minMore study resources for JNCIP-SP
- Practice questionsIn Junos, which routing table holds the routes that the forwarding table is populated from for IPv4 unicast traffic after route preference selection?
- FlashcardsIS-IS ATT bit. Set by a Level 1/Level 2 router in its L1 LSP to tell L1-only routers that a default route toward the L2 backbone is available through it.
- Cheat sheetIS-IS levels: Level 1 is intra-area only; Level 2 is the backbone.
- Key termsIS-IS Level 1. An interior gateway protocol area that holds a flat link-state database and routes only within its own area; it forwards traffic destined outside the area toward a Level 1/Level 2 router.
- Study planMap the JNCIP-SP blueprint into a personal gap list, tagging each objective as strong, weak, or unknown based on current hands-on experience.
- Common mistakesCandidates memorize that both LDP and RSVP build label-switched paths and treat them as interchangeable transport options.
- Exam-day guideBring the same ID name that appears on your exam registration; a mismatch can block admission.