JNCIP-ENT Study Notes

Describe the concepts, operation, or functionality of IGPs

  • IS-IS
  • OSPFv2 and OSPFv3
  • Routing Policy

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor IGPs

BGP Study Notes

Describe the concepts, operation, or functionality of BGP

  • BGP route selection process
  • Next hop resolution
  • BGP attributes: concept and operation
  • BGP communities
  • Regular expressions
  • Load balancing – multipath, multihop, forwarding table
  • NLRI families: inet and inet6
  • Advanced BGP options

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor BGP

  • Implement BGP routing policy

Describe the concepts, operation, or functionality of IP multicast

  • Components of IP multicast, including multicast addressing
  • IP multicast traffic flow
  • Any-Source Multicast (ASM) vs. Source-Specific Multicast (SSM)
  • RPF: concept and operation
  • IGMP and IGMP snooping
  • PIM dense-mode and sparse-mode
  • Rendezvous point (RP): concept, operation, discovery, and election
  • SSM: requirements, benefits, address ranges
  • Anycast RP
  • MSDP
  • Routing policy and scoping

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor IP multicast

  • IGMP, PIM-DM, or PIM-SM (including SSM)
  • Implement IP multicast routing policy

Describe the concepts, operation, or functionality of advanced Ethernet switching

  • Filter-based VLANs
  • Private VLANs
  • Dynamic VLAN registration using MVRP
  • Tunnel Layer 2 traffic through Ethernet networks
  • Junos Fusion Enterprise
  • Layer 2 tunneling using Q-in-Q and L2PT

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor advanced Ethernet switching

  • Filter-based VLANs
  • Private VLANs
  • Dynamic VLAN registration using MVRP
  • Tunnel Layer 2 traffic through Ethernet networks
  • Junos Fusion Enterprise
  • Layer 2 tunneling using Q-in-Q and L2PT

Describe the concepts, operation, or functionality of advanced spanning tree protocols, including MSTP or VSTP

  • Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor MSTP or VSTP

Describe the operation of various Layer 2 authentication or access control features

  • Authentication process flow
  • 802.1x: concepts and functionality
  • MAC RADIUS
  • Captive portal
  • Server fail fallback
  • Guest VLAN
  • Considerations when using multiple authentication/access control methods

Given a scenario, demonstrate how to configure, troubleshoot, or monitor Layer 2 authentication or access control

Describe the concepts, operation, or functionality of features that facilitate IP telephony deployments

  • Power over Ethernet (PoE)
  • LLDP and LLDP-MED
  • Voice VLAN

Given a scenario, demonstrate how to configure, troubleshoot, or monitor features used to support IP telephony deployments

Describe the concepts, operation, or functionality of Junos CoS for Layer 2 or 3 networks

  • CoS processing on Junos devices
  • CoS header fields
  • Forwarding classes
  • Classification
  • Packet loss priority
  • Policers
  • Schedulers
  • Drop profiles
  • Shaping
  • Rewrite rules

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor CoS for Layer 2 or 3 networks

Describe the concepts, operation, or functionality of Junos EVPN

  • VXLAN
  • Multi-homing (for example, active route types)

Given a scenario, demonstrate knowledge of how to configure, troubleshoot, or monitor EVPN