Switching Mastery
Configure VLANs, spanning tree, and Layer 2 security across switched topologies.
JNCIS-ENT Certification Training
Switch and Route Enterprise Networks.
Master Layer 2 switching, VLANs, spanning tree, OSPF, IS-IS, BGP, and high availability for Juniper enterprise routing and switching platforms.
Core Switch
VLAN trunking
OSPF Area
Adjacency up
BGP Peer
Routes exchanged
LAG / VRRP
Standby ready
user@ent> show spanning-tree bridge
VLANs active: 32
STP state: Forwarding
9Skill domains
EnterpriseRouting & switching
GuidedLearning path
ExpertTrainer support
Course Overview
Specialist-Level Skills for Enterprise Routing & Switching
JNCIS-ENT training builds on JNCIA-Junos fundamentals with a beginner-to-intermediate focus on enterprise routing and switching implementations, covering both configuration and troubleshooting across Junos platforms.
Configure VLANs and Layer 2 switching
Operate spanning tree protocols
Apply Layer 2 security and filters
Configure OSPF, IS-IS, and BGP
Build IP tunnels
Deploy high availability features
Your Learning Route
Enterprise Network Specialist Profile
01
SwitchVLANs, STP, and Layer 2 security
02
RouteOSPF, IS-IS, and BGP
03
ConnectIP tunneling for enterprise links
04
SustainHigh availability and resilience
A structured path for engineers managing enterprise Junos networks.
What You Gain
Real-World Enterprise Routing & Switching Practice
Configuration and troubleshooting practice across switching, routing protocols, tunneling, and high availability for enterprise Junos networks.
Dynamic Routing
Deploy OSPF, IS-IS, and BGP with policy control and verification commands.
IP Tunneling
Build GRE and IP-IP tunnels to connect enterprise sites and segments.
High Availability
Configure LAG, VRRP, GRES, NSR, and ISSU for resilient operations.
Course Curriculum
Nine Domains. One Connected Enterprise Path.
Open each route card to explore the skills and practical concepts covered in the programme.
Bridging components and frame processing
Port modes and VLAN tagging
Native VLANs and voice VLANs
Inter-VLAN routing
Interface and port configuration
Monitoring and troubleshooting VLANs
STP and RSTP concepts
Port roles and states
Bridge Protocol Data Units (BPDUs)
Convergence and reconvergence
Configuring and troubleshooting STP/RSTP
BPDU, loop, and root protection
Port security: MAC limiting, DHCP snooping, DAI, IP source guard
MACsec and storm control
Layer 2 firewall filter types and processing order
Match criteria and actions
Configuring and troubleshooting Layer 2 security
Static, aggregate, and generated routes
Martian addresses
Routing instances and RIB groups
Load balancing
Filter-based forwarding
Configuration and troubleshooting workflows
Link-state database and OSPF packet types
Router ID, adjacencies, and neighbors
DR and BDR election
OSPF area and router types
LSA packet types
Configuring areas, interfaces, and neighbors
Routing policy application
Troubleshooting tools (ping, traceroute, traceoptions)
Link-state database and IS-IS PDUs
TLVs, adjacencies, and neighbors
Levels, areas, and DIS
Metrics
Configuring levels, interfaces, and adjacencies
Routing policy application
Troubleshooting tools
BGP basic operation and message types
Attributes and route/path selection
IBGP and EBGP functionality
Groups and peers configuration
Additional basic options
Routing policy application
Troubleshooting tools
Tunneling applications and considerations
Generic Routing Encapsulation (GRE)
IP-IP tunneling
Troubleshooting tunneling
Link aggregation groups (LAG) and RTG
Virtual chassis
Graceful restart, GRES, NSB, and NSR
Bidirectional Forwarding Detection (BFD) and VRRP
Unified In-Service Software Upgrade (ISSU)
Troubleshooting tools (traceoptions, show commands, logging)
Talk to Zetlan
Ready to Become an Enterprise Routing & Switching Specialist?
Connect with our training team for the course brochure, a free demo, or personalised guidance.