Enterprise Routing and Switching, Professional (JNCIP-ENT)

Interior Gateway Protocols (IGPs)

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

Describe the concepts, operation, or functionality of BGP

• BGP route selection process
• Next hop resolution
• BGP attributes: concept and operation
• BGP communities
• 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

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) vs. Source-Specific Multicast (SSM)
• RPF - concept and operation
• IGMP, IGMP snooping
• PIM sparse-mode
• Rendezvous point (RP) - concept, operation, discovery,
• election
• Anycast RP
• MSDP
• Routing policy and scoping

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

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

Ethernet Switching and Spanning Tree

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
• 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
• Dynamic VLAN registration using MVRP
• Tunnel Layer 2 traffic through Ethernet networks
• 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.

Layer 2 Authentication and Access Control

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.

IP Telephony Features

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.

Class of service (CoS)

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

EVPN

Describe the concepts, operation, or functionality of Junos EVPN

• Route types (e.g., Type 1, 2 3)
• VXLAN
• Multi-homing (e.g., active route types)

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