OSPF

Describe the concepts, operation, or functionality of OSPFv2 or OSPFv3

• OSPF area types and operations
• LSA flooding through an OSPF multi-area network
• DR/BDR operation
• SPF algorithm
• Metrics, including external metric types
• Summarize and restrict routes
• Virtual links
• OSPFv2 versus OSPFv3

Given a scenario, demonstrate knowledge of how to configure or monitor single-area or multi-area OSPF

• Implement OSPF routing policy

IS-IS

Describe the concepts, operation, or functionality of IS-IS

• IS-IS areas/levels and operations
• LSP flooding through an IS-IS multi-area network
• DIS operation
• SPF algorithm
• Metrics, including wide metrics
• Route summarization and route leaking

Given a scenario, demonstrate knowledge of how to configure or monitor single-area or multi-area IS-IS

• Implement IS-IS routing policy

BGP

Describe the concepts, operation, or functionality of BGP

• BGP route selection process
• Next hop resolution
• BGP attributes: concept and operation
• BGP communities
• Regular expressions
• Multipath
• Multihop
• Load balancing
• Advanced BGP options
• BGP route damping
• FlowSpec
• Multiprotocol BGP

Describe the concepts, operation, or functionality of BGP scaling mechanisms

• Route reflection

Given a scenario, demonstrate knowledge of how to configure or monitor BGP

• Implement BGP routing policy

Class of Service (CoS)

Describe the concepts, operation, or functionality of Junos CoS

• CoS processing on Junos devices
• CoS header fields
• Forwarding classes
• Classification
• Packet loss priority
• Policers
• Schedulers
• Drop profiles
• Rewrite rules

Given a scenario, demonstrate knowledge of how to configure or monitor CoS

IP Multicast

Describe the concepts, operation, or functionality of IP multicast

• Components of IP multicast, including multicast addressing
• IP multicast traffic flow
• Any-Source Multicast (ASM) versus Source-Specific Multicast (SSM)
• IGMP
• PIM dense-mode and sparse-mode
• Rendezvous point (RP): concept, operation, discovery, and election
• SSM: requirements, benefits, address ranges
• Anycast RP

Given a scenario, demonstrate knowledge of how to configure or monitor IGMP, PIM-DM, or PIM-SM (including SSM)

• Implement IP multicast routing policy

Layer 3 VPNs

Describe the concepts, operation, or functionality of Layer 3 VPNs

• Traffic flow: control and data planes
• Full mesh versus hub-and-spoke topology
• VPN-IPv4 addressing
• Route distinguishers
• Route targets
• Route distribution
• Site of origin
• Sham links
• vrf-table-label
• Next-generation MVPNs
• Flow of control and data traffic in an MVPN
• Layer 3 VPN scaling
• IPv6 Layer 3 VPNs
• Layer 3 VPN Internet access options

Given a scenario, demonstrate knowledge of how to configure or monitor the components of Layer 3 VPNs

Describe Junos support for carrier-of-carriers or interprovider VPN models

Layer 2 VPNs

Describe the concepts, operation, or functionality of BGP Layer 2 VPNs

• Traffic flow: control and data planes
• Forwarding tables
• Connection mapping
• Layer 2 VPN NLRI
• Route distinguishers
• Route targets
• Layer 2 VPN scaling

Describe the concepts, operation, or functionality of LDP Layer 2 circuits

• Traffic flow: control and data planes
• Virtual circuit label
• AutoDiscovery
• Layer 2 interworking

Describe the concepts, operation, or functionality of VPLS

• Traffic flow: control and data planes
• BGP VPLS label distribution
• LDP VPLS label distribution
• Route targets
• VPLS Multihoming
• Site IDs

Describe the concepts, operation, or functionality of EVPN

• Traffic flow: control and data planes
• MAC learning and distribution
• EVPN Multihoming
• BGP EVPN label distribution

Given a scenario, demonstrate knowledge of how to configure, monitor, or troubleshoot Layer 2 VPNs

• BGP Layer 2 VPNs
• LDP Layer 2 circuits
• EVPNs
• VPLS