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In a world where technologies are evolving rapidly, every company - business needs a partner to rely on and trust for the smooth and secure operation of its network infrastructure.

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In a world where technologies are evolving rapidly, every company - business needs a partner to rely on and trust for the smooth and secure operation of its network infrastructure.

 

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In a world where technologies are evolving rapidly, every company - business needs a partner to rely on and trust for the smooth and secure operation of its network infrastructure.

 

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Enterprise Routing and Switching, Specialist (JNCIS-ENT)

Enterprise Routing and Switching, Specialist (JNCIS-ENT)

Enterprise Routing and Switching, Specialist (JNCIS-ENT)

Enterprise Routing and Switching, Specialist (JNCIS-ENT)


This track enables you to demonstrate competence with networking technology in general and Juniper Networks enterprise routing and switching platforms. JNCIS-ENT, the specialist-level certification in this track, is designed for experienced networking professionals with beginner to intermediate knowledge of routing and switching implementations in Junos. The written exam verifies your basic understanding of routing and switching technologies and related platform configuration and troubleshooting skills.

This track includes four certifications:

  • JNCIA-Junos: Junos, Associate. For details, see JNCIA-Junos.
  • JNCIS-ENT: Enterprise Routing and Switching, Specialist. For details, see the sections below.
  • JNCIP-ENT: Enterprise Routing and Switching, Professional. For details, see JNCIP-ENT.
  • JNCIE-ENT: Enterprise Routing and Switching, Expert. For details, see JNCIE-ENT.

Exams & Recommended Training


Required Core Exam
JIR – Junos Intermediate Routing JNCIS-ENT,JNCIS-SP
JEX – Junos Enterprise Switching JNCIS-ENT

Prerequisite Certification


JNCIA-Junos

Details
Layer 2 Switching or VLANs Identify the concepts, operations, or functionalities of Layer 2 switching for the Junos OS:

  • Bridging components
  • Frame processing

Describe the concepts, benefits, or functionalities of VLANs:

  • Ports
  • Tagging
  • Native VLANs and voice VLANs
  • Inter-VLAN routing

Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 switching or VLANs:

  • Interfaces and ports
  • VLANs
  • Inter-VLAN routing
Spanning Tree Describe the concepts, benefits, operations, or functionalities of the Spanning Tree Protocol (STP):

  • STP and Rapid Spanning Tree Protocol (RSTP) concepts
  • Port roles and states
  • Bridge Protocol Data Units (BPDUs)
  • Convergence and reconvergence

Demonstrate knowledge how to configure, monitor, or troubleshoot Spanning Tree:

  • STP
  • RSTP
Layer 2 Security Identify the concepts, benefits, or operations of various Layer 2 protection or security features:

  • BPDU, loop or root protection
  • Port security, including MAC limiting, DHCP snooping, Dynamic ARP inspection (DAI) or IP source guard
  • MACsec
  • Storm control

Identify the concepts, benefits, or operations of Layer 2 firewall filters:

  • Filter types
  • Processing order
  • Match criteria and actions

Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 security:

  • Protection
  • Port security
  • Storm control
  • Firewall filter configuration and application
Protocol Independent Routing Identify the concepts, operations, or functionalities of various protocol-independent routing components:

  • Static, aggregate, and generated routes
  • Martian addresses
  • Routing instances, including routing information base (RIB) groups
  • Load balancing
  • Filter-based forwarding

Demonstrate knowledge how to configure, monitor, or troubleshoot various protocol-independent routing components:

  • Static, aggregate, and generated routes
  • Load balancing
  • Filter-based forwarding
OSPF Describe the concepts, operations, or functionalities of OSPF:

  • Link-state database
  • OSPF packet types
  • Router ID
  • Adjacencies and neighbors
  • Designated router (DR) and backup designated router (BDR)
  • OSPF area and router types
  • Realms
  • Link-state advertisement (LSA) packet types

Demonstrate knowledge how to configure, monitor, or troubleshoot OSPF:

  • Areas, interfaces, and neighbors
  • Additional basic options
  • Routing policy application
  • Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)
IS-IS Describe the concepts, operations, or functionalities of IS-IS:

  • Link-state database
  • IS-IS Protocol Data Units (PDUs)
  • Type, length, and values (TLVs)
  • Adjacencies and neighbors
  • Levels and areas
  • Designated intermediate system (DIS)
  • Metrics

Demonstrate knowledge of how to configure, monitor, or troubleshoot IS-IS:

  • Levels, interfaces, and adjacencies
  • Additional basic options
  • Routing policy application
  • Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)
BGP Describe the concepts, operations, or functionalities of BGP:

  • BGP basic operation
  • BGP message types
  • Attributes
  • Route/path selection process
  • Internal and external BGP (IBGP and EBGP) functionality and interaction

Demonstrate knowledge of how to configure, monitor, or troubleshoot BGP:

  • Groups and peers
  • Additional basic options
  • Routing policy application
  • Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)
Tunnels Identify the concepts, requirements, or functionalities of IP tunneling:

  • Tunneling applications and considerations
  • Generic Routing Encapsulation (GRE)
  • IP-IP

Demonstrate knowledge of how to configure, monitor, or troubleshoot IP tunnels:

  • GRE
  • IP-IP
  • Troubleshooting tools (ping, traceroute, traceoptions, show commands, logging)
High Availability Identify the concepts, benefits, applications, or requirements for high availability in a Junos OS environment:

  • Link aggregation groups (LAG)
  • Redundant trunk groups (RTG)
  • Virtual chassis
  • Graceful restart
  • Graceful Routing Engine switchover (GRES)
  • Nonstop active routing (NSR)
  • Nonstop bridging (NSB)
  • Bidirectional Forwarding Detection (BFD)
  • Virtual Router Redundancy Protocol (VRRP)
  • Unified In-Service Software Upgrade (ISSU)

Demonstrate knowledge of how to configure, monitor, or troubleshoot high availability components:

  • LAG and RTG
  • Virtual chassis
  • Graceful restart, GRES, NSB, and NSR
  • VRRP
  • ISSU
  • Troubleshooting tools (traceoptions, show commands, logging)

Recertification


Juniper certifications are valid for three years.