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JNCIP-SP Exam Objectives (Exam: JN0-661)

This list provides a general view of the skill set required to successfully complete the specified certification exam.

OSPF
IS-IS
BGP
Class of Service (CoS)
IP Multicast
Advanced MPLS
Layer 3 VPNs
Layer 2 VPNs

OSPF

  • Describe the concepts, operation and functionality of OSPFv2 or OSPFv3
    • OSPF area types and operations
    • LSA flooding through an OSPF multi-area network
    • DR/BDR operation
    • SPF algorithm
    • Metrics, including external metric types
    • Summarize and restrict routes
    • Virtual links
    • OSPFv2 vs OSPFv3
  • Given a scenario, demonstrate knowledge of how to configure or monitor single-area and multi-area OSPF
    • Implement OSPF routing policy

IS-IS

  • Describe the concepts, operation, or functionality of IS-IS
    • IS-IS areas/levels and operations
    • LSP flooding through an IS-IS multi-area network
    • DIS operation
    • SPF algorithm
    • Metrics, including wide metrics
    • Route summarization and route leaking
  • Given a scenario, demonstrate knowledge of how to configure or monitor single-area and multi-area IS-IS
    • Implement IS-IS routing policy

BGP

  • Describe the concepts, operation, or functionality of BGP
    • BGP route selection process
    • Next hop resolution
    • BGP attributes – concept and operation
    • BGP communities
    • Regular expressions
    • Multipath
    • Multihop
    • Load balancing
    • Advanced BGP options
    • BGP route damping
    • Multiprotocol BGP
  • Describe the concepts, operation or functionality of BGP scaling mechanisms
    • Route reflection
    • Confederations
  • Given a scenario, demonstrate knowledge of how to configure or monitor BGP
    • Implement BGP routing policy

Class of Service (CoS)

  • Describe the concepts, operation, or functionality of Junos CoS
    • CoS processing on Junos devices
    • CoS header fields
    • Forwarding classes
    • Classification
    • Packet loss priority
    • Policers, including tricolor marking and hierarchical policers
    • Schedulers
    • Drop profiles
    • Shaping
    • Rewrite rules
    • Hierarchical scheduling (H-CoS) characteristics (high-level only)
  • Given a scenario, demonstrate knowledge of how to configure or monitor CoS

IP Multicast

  • Describe the concepts, operation, or functionality of IP multicast
    • Components of IP multicast, including multicast addressing
    • IP multicast traffic flow
    • Any-Source Multicast (ASM) versus Source-Specific Multicast (SSM)
    • RPF – concept and operation
    • IGMP
    • PIM dense-mode and sparse-mode
    • Rendezvous point (RP) – concept, operation, discovery, election
    • SSM – requirements, benefits, address ranges
    • MSDP, including single and multi-PIM domains
    • Anycast RP
    • Routing policy and scoping
  • Given a scenario, demonstrate knowledge of how to configure or monitor IGMP, PIM-DM, PIM-SM (including SSM) and MSDP
    • Implement IP multicast routing policy

Advanced MPLS

  • Describe the concepts, operation, or functionality of MPLS
    • Routing table integration options for traffic engineering
    • Routing policy to control path selection
    • Advanced MPLS features
    • Administrative groups
    • Advanced CSPF options
    • Implement MPLS routing policy

Layer 3 VPNs

  • Describe the concepts, operation, or functionality of Layer 3 VPNs
    • Traffic flow – control and data planes
    • Full mesh vs. hub-and-spoke topology
    • VPN-IPv4 addressing
    • Route distinguishers
    • Route targets
    • Route distribution
    • Site of origin
    • Sham links
    • vrf-table-label
    • Layer 3 VPN scaling
    • IPv6 Layer 3 VPNs
    • Layer 3 VPN Internet access options
  • Given a scenario, demonstrate knowledge of how to configure or monitor the components of Layer 3 VPNs
  • Describe the concepts, operation or functionality of multicast VPNs
    • Next-generation MVPNs (NG-MVPN)
    • Flow of control and data traffic in an MVPN
  • Describe Junos support for carrier-of-carriers or interprovider VPN models

Layer 2 VPNs

  • Describe the concepts, operation, or functionality of BGP Layer 2 VPNs
    • Traffic flow – control and data planes
    • Forwarding tables
    • Connection mapping
    • Layer 2 VPN NLRI
    • Route distinguishers
    • Route targets
    • Layer 2 VPN scaling
  • Describe the concepts, operation, or functionality of LDP Layer 2 circuits
    • Traffic flow – control and data planes
    • Virtual circuit label
    • Layer 2 interworking
  • Describe the concepts, operation, or functionality of VPLS
    • Traffic flow – control and data planes
    • BGP VPLS label distribution
    • LDP VPLS label distribution
    • Route targets
    • VPLS Multihoming
    • Site IDs
  • Describe the concepts, operation, or functionality of EVPN
    • Traffic flow – control and data planes
    • MAC learning and distribution
    • EVPN Multihoming
    • BGP EVPN label distribution
  • Given a scenario, demonstrate knowledge of how to configure or monitor Layer 2 VPNs
    • BGP Layer 2 VPNs
    • LDP Layer 2 circuits
    • EVPNs
    • VPLS