Mapping the JNCIA-DC Blueprint

Introduction

In this (very) short blog post, I’ll provide a mapping of the official JNCIA-DC objectives to some resources for learning about the topic.

You may notice that several of these sections suggest studying the JNCIA-Junos or JNCIS-ENT. That’s because there’s a lot of overlap. Honestly, the right approach is probably to get your JNCIA-Junos and JNCIS-ENT before attempting the JNCIA-DC, but if you’re impatient, then hopefully this mapping helps.

Data Center Architectures

Identify concepts and general features of Data Center architectures

Traditional Architectures (multi-tier)

Juniper Open Learning: Design, Associate (JNCDA)

Day One: Data Center Fundamentals, Chapter 5

IP-Fabric Architectures (Spine/Leaf)

Juniper Open Learning: Design, Associate (JNCDA)

Day One: Data Center Fundamentals, Chapters 5 & 6

Layer 2 and Layer 3 strategies

I have no idea what this is supposed to mean according to the blueprint. Maybe traditional “core-distribution-access” vs. spine-leaf?

Overlay Network versus Underlay Network (Very Basic)

Day One: Data Center Fundamentals, Chapter 7

EVPN/VXLAN basics/purpose

Day One: Data Center Fundamentals, Chapters 7 & 9

Layer 2 Switching, VLANs and Security

Identify the concepts, operation, or functionality of Layer 2 switching for the Junos OS

Ethernet switching/bridging concepts and operations

Juniper Open Learning: JNCIA-Junos

Juniper Open Learning: JNCIS-ENT

Layer 2 Networking

Identify the concepts, benefits, or functionality of VLANs

Port modes

Juniper Open Learning: JNCIA-Junos

Juniper Open Learning: JNCIS-ENT

VLAN Tagging

Juniper Open Learning: JNCIA-Junos

Juniper Open Learning: JNCIS-ENT

IRB

Integrated Bridging and Routing, Understanding Integrated Routing and Bridging, Configuring IRB Interfaces on Swithces, and Configuring Integrated Routing and Bridging for VLANs

Identify the concepts, benefits, or functionality of Layer 2 Security

MACsec

Day One: MACsec, Chapters 1 & 2

Understanding Media Access Control Security (MACsec)

MAC address control/filtering

Juniper Open Learning: JNCIS-ENT

MAC Address Filtering and Accounting on Ethernet Interfaces, Configuring MAC Address Filtering for Ethernet Interfaces

Configuring MAC Limiting, Configuring MAC Limiting (QFX Switches)

Storm Control

Juniper Open Learning: JNCIS-ENT

Understanding Storm Control

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

Ethernet switching/bridging

Layer 2 Networking

Configuring Layer 2 Briding Interfaces

Integrated Bridging and Routing, Understanding Integrated Routing and Bridging, Configuring IRB Interfaces on Swithces, and Configuring Integrated Routing and Bridging for VLANs

VLANs

Bridging and VLANs, All sections except non-ELS sections and VPLS Ports

Layer 2 security features

Juniper Open Learning: JNCIS-ENT

Understanding Persistent MAC Learning, Understanding Persistent MAC Learning (Sticky MAC) and Configuring Persistent MAC Learning (ELS)

Configuring MAC Limiting, Configuring MAC Limiting (QFX Switches)

MAC Address Filtering and Accounting on Ethernet Interfaces, Configuring MAC Address Filtering for Ethernet Interfaces

Understanding Storm Control

Enabling and Disabling Storm Control (ELS)

Protocol-Independent Routin

Identify the concepts, operation, or functionality of various protocol-independent routing components

Static, aggregate, and generated routes

Configure Static Routes, Understanding Basic Static Routing

Configuring Route Aggregation, Understanding Route Aggregation

Juniper Open Learning: JNCIA-Junos

Juniper Open Learning: JNCIS-ENT

Junos: Aggragate Routes vs Generate Routes (*)

Martian addresses

Recognize Martian Addresses for Routing

Juniper Open Learning: JNCIA-Junos

Juniper Open Learning: JNCIS-ENT

Routing instances, including RIB groups

Routing Instances Overview

Juniper Day One Poster: Using RIB Groups for Route Sharing in the Junos OS

Juniper Open Learning: JNCIA-Junos

Juniper Open Learning: JNCIS-ENT

Junos RIB Groups (1/2) (*)

Junos RIB Groups (2/2) (*)

Load balancing

Juniper Open Learning: JNCIA-Junos

Juniper Open Learning: JNCIS-ENT

Understanding Per-Packet Load Balancing

Filter-based forwarding

Filter-Based Forwarding Overview

Example: Configuring Filter-Based Forwarding on the Source Address

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

Static, aggregate, and generated routes

Configure Static Routes

Configuring Route Aggregation

Juniper Open Learning: JNCIS-ENT

Day One: Routing the Internet Protocol, Chapters 1 & 8

Junos: Aggragate Routes vs Generate Routes (*)

Load balancing

Configuring Per-Packet Load Balancing

Data Center Routing Protocols BGP/OSPF

Identify the concepts, operation, or functionality of OSPF

Juniper Open Learning: JNCIS-ENT

Day One: Routing the Internet Protocol, Chapters 2 & 4

Introduction to OSPF, OSPF Overview

OSPF packet types

Introduction to OSPF, OSPF Packets Overview

Router ID

Introduction to OSPF, OSPF Overview

Adjacencies and neighbors

Introduction to OSPF, OSPF Overview

Designated router (DR) and backup designated router (BDR)

Configuring OSPF Areas, OSPF Designated Router Overview

OSPF area and router types

Configuring OSPF Areas, Understanding OSPF Areas, OSPF Designated Router Overview, Understanding OSPF Areas and Backbone Areas, and Understanding OSPF Stub Areas, Totally Stubby Areas, and Not-So-Stubby Areas

LSA packet types

Introduction to OSPF, OSPF Packets Overview

Describe how to configure, monitor, or troubleshoot OSPF

Juniper Open Learning: JNCIS-ENT

Day One: Routing the Internet Protocol, Chapter 4

Areas, interfaces, and neighbors

Configuring OSPF Interfaces

Configuring OSPF Areas

Additional basic options

Configuring OSPF Authentication

Routing policy application

Configuring OSPF Routing Policy

Troubleshooting tools

Troubleshooting Network Issues

Identify the concepts, operation, or functionality of BGP

Juniper Open Learning: JNCIS-ENT

Day One: Routing the Internet Protocol, Chapter 7

BGP basic operation

BGP Overview, Understanding BGP, BGP Routes Overview, and BGP Route Resolution Overview

BGP message types

BGP Overview, BGP Messages Overview

Attributes

Autonomous Systems for BGP, Understanding the BGP Local AS Attribute and Understanding the Accumulated IGP Attribute for BGP

Local Preference for BGP Routes, Understanding the Local Preference Metric for Internal BGP Routes

BGP MED Attribute, Understanding the MED Attribute That Determines the Exit Point in an AS

Route/path selection process

BGP Overview, Understanding BGP Path Selection

IBGP and EBGP functionality and interaction

BGP Overview, Understanding BGP

BGP Peering Sessions, Understanding External BGP Peering Sessions and Understanding Internal BGP Peering Sessions

Describe how to configure, monitor, or troubleshoot BGP

Juniper Open Learning: JNCIS-ENT

Troubleshooting Network Issues

[Troubleshooting BGP Sessions][bgp-tshoot-sessions]

Groups and peers

BGP Peering Sessions

Additional basic options

BGP Route Authentication

Routing policy application

Basic BGP Routing Policies

High Availability (HA)

Juniper Open Learning: JNCIA-Junos

Juniper Open Learning: JNCIS-ENT

Identify the concepts, benefits, applications, or requirements of high availability

Aggregated Ethernet Interfaces, Understanding Aggregated Ethernet Interfaces and LACP for Switches

Graceful restart (GR)

Graceful Restart Concepts

Understanding Graceful Restart for BGP, Understanding the Long-Lived BGP Graceful Restart Capability

Configuring Graceful Restart for OSPF, Graceful Restart for OSPF Overview

Bidirectional Forwarding Detection (BFD)

Understanding How BFD Detects Network Failures

Virtual Chassis

Understanding QFX Series Virtual Chassis

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

Aggegrated Ethernet Interfaces, Forcing LAG Links or Interfaces with Limited LACP Capability to Be Up, Configuring an Aggregated Ethernet Interface, Configuring the Number of Aggregated Ethernet Interfaces on the Device (Enhanced Layer 2 Software), and Troubleshooting an Aggregated Ethernet Interface

Graceful restart (GR)

Configuring Graceful Restart for OSPF, Example: Configuring Graceful Restart for OSPF

Configuring Graceful Restart

Bidirectional Forwarding Detection (BFD)

Configuring BFD, Example: Configuring BFD for Static Routes for Faster Network Failure Detection, Example: Configuring BFD on Internal BGP Peer Sessions, and Example: Configuring BFD for OSPF

*: Not from Juniper directly as finding clear and concise free content pertaining to the topic was challenging.

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