JNCIS-ENT (Juniper Networks Certified Internetwork Specialist – Enterprise)
Course Details
Layer 2 Switching and VLANs
– Enterprise switching platforms
– Bridging components
– Frame processing
– Ports
– Tagging
– Native VLANs and voice VLANs
– Inter-VLAN routing
– Interfaces and ports
– VLANs
– Routed VLAN interfaces (RVI)
Spanning Tree
– STP and RSTP concepts
– Port roles and states
– BPDUs
– Convergence and reconvergence
– STP
– RSTP
Layer 2 Security
– BPDU, loop and root protection
– Port security, including MAC limiting, DHCP snooping, Dynamic ARP inspection (DAI) and IP source guard
– Storm control
– Filter types
– Processing order
– Match criteria and actions
– Protection
– Port security
– Storm control
– Firewall filter configuration and application
Protocol Independent Routing
– Static, aggregate, and generated routes
– Martian addresses
– Routing instances, including RIB groups
– Load balancing
– Filter-based forwarding
– Static, aggregate, and generated routes
– Load balancing
– Filter-based forwarding
Open Shortest Path First (OSPF)
– Link-state database
– OSPF packet types
– Router ID
– Adjacencies and
– Designated router (DR) and backup designated router (
– OSPF area and router
– LSA packet
– Areas, interfaces and
– Additional basic
– Routing policy
– Troubleshooting
– Realms
Intermediate System to Intermediate System (IS-IS)
– Link-state database
– IS-IS PDUs
– TLVs
– Adjacencies and neighbors
– Levels and areas
– Designated intermediate system (DIS)
– Metrics
– Levels, interfaces and adjacencies
– Additional basic options
– Routing policy application
– Troubleshooting tools
Border Gateway Protocol (BGP)
– BGP basic operation
– BGP message types
– Attributes
– Route/path selection process
– IBGP and EBGP functionality and interaction
– Groups and peers
– Additional basic options
– Routing policy application
Tunnels
– Tunneling applications and considerations
– IP-IP
– GRE
– IP-IP
High Availability
– Link aggregation groups (LAG)
– Redundant trunk groups (RTG)
– Virtual Chassis
– Graceful restart (GR)
– 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
– GR, GRES, NSR, and NSB
– VRRP
I– SSU