JUNIPER NETWORKSJuniper Networks Certified Professional, Service Provider Routing and Switching (JNCIP-SP)
The Juniper Networks Certified Professional, Service Provider Routing and Switching (JNCIP-SP) certification validates advanced knowledge of routing and switching implementations in Junos, covering OSPF, IS-IS, BGP, multicast, and Layer 2/3 VPNs. Designed for networking professionals with deep expertise in service provider environments, this credential demonstrates the ability to configure, monitor, and troubleshoot complex Junos networks. Earning JNCIP-SP signals your readiness to handle demanding service provider routing and switching challenges.
874 practice questions · Updated 2026-07-30
7Domains
44Objectives
321Concepts
874Questions
JN0-664 Curriculum
Every domain, objective, and concept the JN0-664 exam measures.
- OSPFv2 vs OSPFv3 differences
- OSPFv3 link-local addressing
- OSPFv3 LSA types
- OSPFv3 multiple instances
- OSPFv3 authentication
- OSPFv2 operation fundamentals
- OSPFv3 operation fundamentals
- OSPFv3 area and router types
- OSPFv3 path selection
- OSPFv3 configuration concepts
- OSPF Area Types Overview
- Backbone Area (Area 0)
- Standard Area
- Stub Area
- Totally Stubby Area
- Not-So-Stubby Area (NSSA)
- Totally NSSA
- LSA Types in Different Areas
- Area Type Configuration
- Route Summarization and Default Routes
- Impact on Routing Table and Path Selection
- LSA Flooding Overview
- Flooding Mechanisms
- LSA Types and Flooding Scope
- Flooding Reduction Techniques
- LSA Flooding and Network Convergence
- DR/BDR election process
- DR/BDR roles and responsibilities
- Adjacency types on multi-access networks
- LSA flooding and synchronization with DR
- DR/BDR failure and re-election
- Impact of DR/BDR on network convergence
- SPF algorithm fundamentals
- Dijkstra's algorithm steps
- Tree and candidate lists
- Link-state database input
- Cost metric calculation
- Shortest-path tree construction
- Equal-cost multipath (ECMP) handling
- Loop prevention and tie-breaking
- Incremental SPF (iSPF)
- SPF timing and throttling
- OSPF metric fundamentals
- Interface cost configuration
- Reference bandwidth tuning
- Route summarization concepts
- Inter-area route summarization
- External route summarization
- Verification of metrics and summaries
- Purpose of virtual links
- Virtual link configuration
- Virtual link operation
- Virtual link constraints
- Troubleshooting virtual links
- OSPF single-area configuration
- OSPF multi-area configuration
- OSPF routing policy application
- OSPF monitoring commands
- OSPF area types and stub/NSSA
- OSPF route summarization
- OSPF authentication
- OSPF timers and interface parameters
- OSPF passive interfaces
- OSPF virtual links
- IS-IS Protocol Fundamentals
- IS-IS Hierarchy and Areas
- IS-IS Router Types and Roles
- IS-IS Link-State Database and Flooding
- IS-IS Neighbor Discovery and Adjacencies
- IS-IS Metrics and Path Selection
- IS-IS Network Types and Interfaces
- IS-IS Authentication and Security
- IS-IS Route Leaking and Inter-Area Routing
- IS-IS Overload and Attach Bits
- IS-IS Area Hierarchy
- Level 1 Routing
- Level 2 Routing
- Level 1/Level 2 Routers
- Area Addressing and NETs
- Route Leaking Between Levels
- Level 1 and Level 2 Link-State Databases
- IS-IS Adjacencies by Level
- SPF Calculations per Level
- Area Partitioning and Backbone Continuity
- LSP flooding overview
- Flooding procedure
- Flooding scope and boundaries
- LSP flooding optimization
- Flooding and database synchronization
- Flooding and loop prevention
- DIS election process
- DIS and pseudonode LSPs
- DIS hello behavior
- DIS failure and re-election
- DIS and IS-IS flooding
- SPF algorithm fundamentals
- Shortest path tree construction
- Metric and cost calculation
- Equal-cost multipath (ECMP)
- SPF optimization techniques
- SPF and network convergence
- Wide metric format
- TLV support for wide metrics
- Enabling wide metrics
- Metric assignment and range
- Interoperability with narrow metrics
- Impact on SPF and route preference
- Troubleshooting wide metric issues
- IS-IS route summarization
- Summarization configuration on IS-IS interfaces
- IS-IS route leaking
- Leaking configuration and policies
- Interaction between summarization and leaking
- IS-IS single-area configuration
- IS-IS multi-area configuration
- IS-IS routing policy application
- Monitoring IS-IS operation
- BGP route selection process
- Path attributes
- BGP communities
- Next-hop resolution
- Regular expressions in BGP
- BGP Multipath
- BGP Multihop
- BGP Load Balancing
- BGP Route Damping
- BGP Route Reflection
- BGP Scaling with Route Reflection
- Flowspec Overview
- Flowspec Configuration
- Flowspec Validation and Monitoring
- Multiprotocol BGP (MP-BGP) Concepts
- MP-BGP Configuration
- MP-BGP Monitoring
- Routing Policy Fundamentals
- Routing Policy for BGP
- Monitoring BGP with Routing Policy
- CoS processing stages
- BA classification
- MF classification
- Fixed classifier
- Header fields for CoS
- Forwarding classes and queues
- Loss priority
- Forwarding classes
- Classification process
- BA classification
- MF classification
- Default classification
- Classification configuration
- Definition of packet loss priority
- PLP marking and classification
- PLP and queue scheduling
- PLP and drop profiles
- PLP and rewrite rules
- PLP configuration on Junos
- Policer fundamentals
- Single-rate two-color policer
- Single-rate three-color policer
- Two-rate three-color policer
- Policer configuration on Junos
- Policer actions and handling
- Scheduler fundamentals
- Scheduler configuration on Junos
- Scheduler maps and their application
- Traffic shaping and rate control
- Drop profiles and RED
- Scheduler buffer management
- Priority and strict-high queuing
- Policer and scheduler interaction
- Purpose of drop profiles
- Drop profile components
- Interpolated drop profiles
- Drop profile configuration
- Drop profile behavior
- Purpose of rewrite rules
- Rewrite rule configuration
- Rewrite rule application
- Rewrite rule behavior
- Rewrite rule verification
- CoS configuration overview
- Configuring classifiers
- Configuring forwarding classes
- Configuring schedulers
- Configuring scheduler maps
- Configuring drop profiles
- Configuring rewrite rules
- Applying CoS to interfaces
- Monitoring CoS operation
- Verifying CoS configuration
- Multicast addressing fundamentals
- Multicast MAC address mapping
- Multicast traffic flow basics
- Multicast distribution trees
- Multicast forwarding state
- Multicast scoping
- ASM Model
- SSM Model
- ASM vs. SSM Comparison
- Multicast Address Ranges
- IGMP Versions for SSM
- PIM Modes for ASM and SSM
- Transition and Interoperability
- RPF Fundamentals
- RPF Check Process
- RPF Failure and Fallback
- RPF and Unicast Routing Protocols
- RPF with Static Routes and Tunnels
- RPF and Multicast Source Discovery
- RPF in Junos Configuration
- Troubleshooting RPF Issues
- IGMP Overview
- IGMPv1
- IGMPv2
- IGMPv3
- IGMP Snooping
- IGMP Querier
- IGMP Timers and Robustness
- IGMP Group Membership and State
- IGMP Configuration and Verification
- PIM Dense Mode
- PIM Sparse Mode
- PIM Sparse-Dense Mode
- PIM Bootstrap Router (BSR)
- PIM Auto-RP
- PIM Static RP
- PIM Assert Mechanism
- PIM Register Mechanism
- PIM SPT Switchover
- PIM Neighbor Discovery
- PIM Prune and Graft
- PIM State Refresh
- RP role in PIM
- Static RP configuration
- BSR (Bootstrap Router) mechanism
- Auto-RP mechanism
- RP election and failover
- RP group mappings
- RP verification and troubleshooting
- Anycast RP Overview
- Anycast RP with PIM-SM
- Anycast RP with MSDP
- Anycast RP Configuration
- Anycast RP Operation and Troubleshooting
- IGMP configuration and monitoring
- PIM dense mode configuration and monitoring
- PIM sparse mode configuration and monitoring
- Multicast routing policy application
- Troubleshooting multicast protocols
- Layer 3 VPN traffic flow
- Layer 3 VPN topologies
- VPN-IPv4 address format
- Route distinguisher (RD) function
- Route target (RT) function
- Route distribution in Layer 3 VPNs
- VRF table structure
- VRF route import and export
- Sham Link Purpose and Operation
- Sham Link Configuration and Troubleshooting
- MVPN Fundamentals
- MVPN Signaling and Data Plane Options
- IPv6 Support in Layer 3 VPNs
- MVPN with IPv6
- Internet Access via VPN
- Internet Access with Firewalls and NAT
- Carrier-of-Carriers VPN Model
- Inter-Provider VPN Options
- Inter-Provider VPN Configuration and Troubleshooting
- Layer 3 VPN configuration components
- VRF configuration
- Route target configuration
- MP-BGP configuration for VPNs
- PE-CE routing protocol configuration
- Layer 3 VPN monitoring commands
- Troubleshooting Layer 3 VPN connectivity
- BGP Layer 2 VPN traffic flow
- Forwarding tables in BGP Layer 2 VPNs
- Connection mapping in BGP Layer 2 VPNs
- NLRI for Layer 2 VPNs
- Route distinguishers (RDs)
- Route targets (RTs)
- Interaction of RDs and RTs
- LDP Layer 2 circuit overview
- Virtual circuit label assignment
- LDP signaling for Layer 2 circuits
- Configuration of LDP Layer 2 circuits
- Verification and troubleshooting
- Autodiscovery mechanisms
- BGP autodiscovery for VPLS
- LDP autodiscovery for VPLS
- Autodiscovery for VPWS
- Interworking options
- Ethernet interworking
- VLAN interworking
- IP interworking
- PPP interworking
- Interworking configuration and operation
- VPLS label distribution mechanisms
- LDP-based VPLS signaling
- BGP-based VPLS signaling
- VPLS multihoming concepts
- Multihoming with BGP
- Multihoming with LDP
- Designated forwarder election
- Loop prevention in multihomed VPLS
- Failure detection and convergence
- Configuration and verification of VPLS multihoming
- EVPN MAC learning mechanisms
- EVPN MAC distribution
- EVPN route types for MAC
- MAC mobility and duplicate MAC detection
- EVPN traffic flow for unicast
- EVPN traffic flow for BUM traffic
- EVPN and MAC table synchronization
- EVPN with VXLAN data plane
- EVPN with MPLS data plane
- EVPN multihoming and MAC learning
- Layer 2 VPN Overview
- Layer 2 VPN Configuration
- Layer 2 VPN Monitoring
- Layer 2 VPN Troubleshooting
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Percentages reflect share of the current practice bank, not official exam weightings — no structured per-skill weight is published for JN0-664, so none is invented.