Juniper Networks Certified Internet Expert – ENT Certification

At the pinnacle of the Enterprise Routing and Switching certification track is the 1-day JNCIE-ENT practical exam. This exam is designed to validate the networking professionals’ ability to deploy, configure, manage and troubleshoot Junos-based enterprise routing and switching platforms. Throughout this 8-hour practical exam, candidates will build an enterprise network infrastructure consisting of multiple routers and switching devices. Successful candidates will perform system configuration on all devices, configure protocols and features like IPV6 ,OSPF V2 , OSPF V3, BGP, MSDP, PIM, SSM, RSTP,LLDP, 802.1x , CoS, routing policies.

System Services and Security

• NTP
• Syslog
• Authentication and authorization
• Configuring archival
• RPM
• Stateless firewall rules for common protocols

Interfaces

• Aggregated Ethernet
• VRRP
• Hash keys for AE load balancing
• Ethernet OAM
• GRE tunnels
• BFD
• LT interfaces

Ethernet Switching

• Multiple CIST
• MSTP/VSTP/RSTP
• xSTP interoperability
• Multiple topologies
• Monitoring and troubleshooting
• Optimization
• VLAN switching and trunking
• Q-in-Q
• IP Telephony
  • LLDP-MED
  • Voice VLAN
• Private VLAN implementation
• Configure/troubleshoot/modify
• Master determination (e.g., election, static)
• Add/remove members (e.g., VC > standalone, to specific FPC ID)
• VCP and VCEP interfaces
• Split detection
• Implementation of port security features
  • 802.1x implémentation
  • MAC RADIUS
• Captive portal
• Implement Dynamic ARP inspection with DHCP snooping
• Layer 2 firewall filters
• MAC table filtering

IGPs

• Configure multi-area OSPF topologies
• Filter/summarize specific routes
• Demonstrate knowledge of configuring OSPF (v2/v3)
• Network/link types
• Troubleshooting
  • Routing loops
  • MTU or area mismatches
• Multi-topology Routing (MTR)
• Route selection process of OSPF w/multiple areas
• BFD
• Redistribution

BGP

• Routing policy
• Route selection
  • Communities
  • Local Preference
  • MED
  • AS path prepending
• Configuration of 4-byte AS (including 4-byte, 2-byte interaction)
• Multi-homed stub-AS
• BFD
• Troubleshooting (e.g., protocol next hop)

Protocol-Independent Routing

• Hash key
• Per flow load balancing
• To instance based on Layer 4
• To instance based on IFL
• Aggregate
• Static
• Generated
• BFD
• Policies

Multicast

• Difference between shared and source trees (e.g., sparse mode)
• Designated router
• BFD
• RPF table manipulation
• Outside of the normal SSM range
• SSM with clients not capable of IGMPv3
• Anycast RP with/without MSDP

Class of Service (CoS)

• Loss priority
• Rewrites
• Shaping and policing
• Reserved bandwidth
• Buffers
• Scheduling
• Prioritize, queue traffic to meet set criteria
• Different traffic classes
• CoS classification
• Multi-field and BA
• Drop profiles or RED

Hands-on lab at a select Juniper Networks testing center.

8 hours