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The Enterprise Routing and Switching track enables you to
demonstrate competence with networking technology in general and Juniper Networks
enterprise routing and switching platforms. JNCIP-ENT, the professional-level
certification in this track, is designed for experienced networking professionals
with advanced knowledge of the Juniper Networks Junos OS. The written exam verifies
your understanding of advanced routing technologies and related platform
configuration and troubleshooting skills.
This track contains four certifications:
- JNCIA-Junos: Junos, Associate. For details, see JNCIA-Junos.
- JNCIS-ENT: Enterprise Routing and Switching, Specialist. For details, see JNCIS-ENT.
- JNCIP-ENT: Enterprise Routing and Switching, Professional. For details, see the
sections below.
- JNCIE-ENT: Enterprise Routing and Switching, Expert. For details, see JNCIE-ENT.
Exam Preparation
We recommend the following resources to help you prepare for your exam. However, these resources
aren’t required, and using them doesn’t guarantee you’ll pass the exam.
Exam Objectives
Here’s a high-level view of the skillset required to successfully complete the JNCIP-ENT
certification exam.
| Exam Objective |
Description |
| Interior Gateway Protocols (IGPs) |
Describe the concepts, operation, or functionality of
IGPs
- OSPFv2
- OSPFv3
- Routing Policy
- Given a scenario, demonstrate knowledge of
how to configure, troubleshoot, or monitor
IGPs
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| 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
- Network Layer Reachability Information
(NLRI) families—inet, 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)
- Reverse Path Forwarding (RPF)—concept and
operation
- Internet Group Management Protocol (IGMP),
IGMP
snooping
- Protocol Independent Multicast (PIM)
sparse-mode
Rendezvous point (RP)—concept, operation,
discovery,
election
- Anycast RP
- Multicast Source Discovery Protocol (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
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| 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.
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| 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.
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| 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.
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Exam Details
Exam questions are derived from the recommended training and the exam resources listed above. Pass/fail status is available immediately after taking the exam. The exam is only provided in English.
Prerequisite Certification
Exam Type
- 65 multiple-choice questions
Recertification
Juniper certifications are valid for three years. For more information, see Recertification.
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