Data Center, Associate (JNCIA-DC)

Data Center Architectures

Identify concepts and general features of data center architectures:

• Traditional architectures (multitier)
• IP fabric architectures (spine/leaf)
• Layer 2 and Layer 3 strategies
• Overlay network vs. underlay network 
• Ethernet VPN–Virtual Extensible LAN (EVPN-VXLAN) basics/purpose

Layer 2 Switching and VLANs

Identify the concepts, operations, or functionalities of Layer 2 switching for Junos OS:

• Ethernet switching/bridging concepts and operations

Identify the concepts, benefits, or functionalities of VLANs:

• Port modes
• VLAN tagging
• Integrated Routing and Bridging (IRB)

Describe how to configure, monitor, or troubleshoot Layer 2 switching or VLANs:

• Ethernet switching/bridging
• VLANs

Protocol-Independent Routing

Identify the concepts, operations, or functionalities of various protocol-independent routing components:

• Static, aggregate, and generated routes
• Martian addresses
• Routing instances, including Routing Information Base (RIB) groups
• Load balancing
• Filter-based forwarding

Describe how to configure, monitor, or troubleshoot various protocol-independent routing components:

• Static, aggregate, and generated routes
• Load balancing

Data Center Routing Protocols BGP/OSPF

Identify the concepts, operation, or functionality of 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
• Link State Advertisement (LSA) packet types

Describe how to configure, monitor, or troubleshoot OSPF:

• Areas, interfaces, and neighbors
• Additional basic options
• Routing policy application
• Troubleshooting tools

Identify the concepts, operation, or functionality of BGP:

• BGP basic operation
• BGP message types
• Attributes
• Route/path selection process
• IBGP and EBGP functionality and interaction

Describe how to configure, monitor, or troubleshoot BGP:

• Groups and peers
• Additional basic options
• Routing policy application

High Availability

Identify the concepts, benefits, applications, or requirements of high availability (HA):

• Link aggregation groups (LAG)
• Graceful restart (GR)
• Bidirectional Forwarding Detection (BFD)
• Virtual Chassis

Describe how to configure, monitor, or troubleshoot high availability components:

• LAG
• GR
• BFD