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.

Course Highlights

  • Identify the concepts, operations, or functionalities of Layer 2 switching for the Junos OS
  • Describe the concepts, benefits, or functionalities of VLANs
  • Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 switching or VLANs
  • Describe the concepts, benefits, operations, or functionalities of the Spanning Tree Protocol (STP)
  • Identify the concepts, benefits, or operations of various Layer 2 protection or security features
  • Demonstrate knowledge how to configure, monitor, or troubleshoot Layer 2 security
  • Identify the concepts, operations, or functionalities of various protocol-independent routing components
  • Describe the concepts, operations, or functionalities of OSPF
  • Identify the concepts, requirements, or functionalities of IP tunneling

Course Schedule

1. Layer 2 Switching or VLANs

Bridging components
Frame processing
Ports
Tagging
Native VLANs and voice VLANs
Inter-VLAN routing
Interfaces and ports
VLANs
Inter-VLAN routing

2.Spanning Tree

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

3. Layer 2 Security

BPDU, loop or root protection
Port security, including MAC limiting, DHCP snooping, Dynamic ARP inspection (DAI) or IP source guard
MACsec
Storm control
Filter types
Processing order
Match criteria and actions
Protection
Port security
Storm control
Firewall filter configuration and application

4. Protocol Independent Routing

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

5. 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
Areas, interfaces, and neighbors
Additional basic options
Routing policy application
Troubleshooting tools (ping, traceroute, trace options, show commands, logging)

6. 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
Levels, interfaces, and adjacencies
Additional basic options
Routing policy application
Troubleshooting tools (ping, traceroute, trace options, show commands, logging)

7. BGP

BGP basic operation
BGP message types
Attributes
Route/path selection process
Internal and external BGP (IBGP and EBGP) functionality and interaction
Groups and peers
Additional basic options
Routing policy application
Troubleshooting tools (ping, traceroute, trace options, show commands, logging)

8. Tunnels

Tunneling applications and considerations
Generic Routing Encapsulation (GRE)
IP-IP
GRE
IP-IP
Troubleshooting tools (ping, traceroute, trace options, show commands, logging)

9. High Availability

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