Networking Domain

Deep Dive: NETWORKING Domain

Complete Certification, Career, and Learning Guide

Last updated: 2026-04-30
Domain code: DOM02
Career level: Entry (CCST) → Expert (CCIE)
Average salary: $95k–$155k USD; R270k–R500k ZAR

Table of Contents

1. Domain Overview
2. Vendor-Neutral Certifications
3. Cisco Ecosystem
4. Juniper Networks
5. Aruba / HPE
6. Arista Networks
7. Mikrotik
8. Wireless (Vendor-Neutral)
9. SD-WAN and SASE Specialty
10. Career Progression and Salary
11. Free Learning Resources
12. Paid Courses and Platforms
13. Essential Books
14. Conferences and Communities
15. Sources

Domain Overview

The NETWORKING domain spans the design, deployment, operation, and troubleshooting of enterprise and service-provider networks. It encompasses:

• Core protocols: IPv4, IPv6, BGP, OSPF, EIGRP, IS-IS, MPLS, QoS
• Hardware platforms: Routers, switches, firewalls, load balancers, SD-WAN appliances
• Specialties: Wireless, data center, service provider, campus/LAN, security, cloud interconnect
• Automation: Ansible, Terraform, network configuration management, Intent-Based Networking (IBN)

Networking professionals span roles from:

• Help Desk / Support Technician (CCST) — $45k–$65k
• Network Technician / Junior Admin (CCNA, CompTIA Network+) — $55k–$75k
• Network Engineer / Administrator (CCNP, JNCIS, ACP) — $90k–$130k
• Senior Engineer / Architect (CCIE, JNCIE, ACE-Professional) — $120k–$180k+
• Principal / Distinguished Engineer — $150k–$250k+

Vendor-Neutral Certifications

CompTIA Network+ (N10-009)

The entry-level, vendor-neutral CompTIA Network+ is widely recognized in IT operations, government contracting, and SMB environments.

Topics covered:

• Network fundamentals (OSI model, IP addressing, DNS, DHCP)
• Network access (Ethernet, VLANs, STP)
• Network architecture (topologies, WAN, cloud connectivity)
• Network operations (monitoring, troubleshooting, performance)
• Security basics (firewalls, VPN, authentication)
• Network resilience and disaster recovery

Typical progression: Help Desk → Network Technician → CCNA or Juniper track.

CompTIA CASP+ / SecurityX (CAS-005)

A mid-level certification bridging networking and security with emphasis on risk management and secure architecture.

Focus areas:

• Advanced network design and threat modeling
• Cloud security architecture
• Application security
• Incident response
• Compliance and governance

Cisco Ecosystem

Cisco dominates enterprise networking. The 2026 certification landscape includes major updates to reflect AI, automation, cloud, and security.

Timeline Overview

• February 3, 2026: CCNA 200-301 v1.1 released; DevNet rebranded to CCNA/CCNP/CCIE Automation
• March 19, 2026: CCNP ENCOR 350-401 v1.2 released (wireless content removed)
• Ongoing: CCIE Enterprise/Security/Collaboration/Service Provider lab exams updated for cloud and automation

Cisco CCST (Entry Level)

The Cisco Certified Support Technician (CCST) is the new entry point, designed for help desk and junior support roles.

CCST Networking (100-150)

Topics:

• Network fundamentals and IP addressing
• Basic routing and switching
• Switching protocols (STP, VLAN)
• Device connectivity
• Network operations

Value: Gateway to CCNA; popular for help desk certification.

Other CCST Tracks

• CCST IT Support (100-140): Help desk fundamentals
• CCST Cybersecurity (100-160): Entry-level security operations

Cisco CCNA (Associate Level)

The CCNA 200-301 is the industry-standard entry certification for professional network engineers.

v1.1 updates (February 2026):

• Heavy integration of AI, cloud, and automation concepts
• Increased emphasis on network assurance and telemetry
• Simplified from prior iterations; focus on practical deployment

Core topics:

• Network fundamentals (OSI, TCP/IP, subnetting)
• Switching and routing
• VLAN, STP, OSPF, EIGRP
• IP Services (NAT, DHCP, DNS)
• Network security basics
• Automation and programmability

Career path after CCNA:

• Network Administrator (mid-level)
• Junior Systems Engineer
• Network Support Technician → Senior role
• Bridge to CCNP (no prerequisite as of 2026)

Cisco CCNP Enterprise (Professional Level)

The CCNP Enterprise is the primary track for data center, campus, and enterprise routing/switching engineers. As of 2026, the core exam is:

ENCOR (Implementing Cisco Enterprise Network Core Technologies) - 350-401

v1.2 updates (March 19, 2026):

• Wireless-specific content removed (moved to specialist exams)
• Dual-stack IPv4/IPv6 architecture emphasis
• Infrastructure assurance and telemetry
• Network automation and Ansible/Terraform integration
• Cloud (AWS/Azure) and edge integration

Core topics:

• Enterprise architecture and design
• VLANs, STP, LAGs, spanning-tree variants
• OSPF, EIGRP, BGP fundamentals
• MPLS, QoS
• Network virtualization (SD-WAN, overlays)
• Infrastructure automation

CCNP Enterprise Specialist Exams (Choose 1+)

To complete the CCNP Enterprise certification, pass ENCOR + one specialist exam:

ENAUTO (300-435) is the most strategically important for 2026, as automation is mandatory in modern networks.

Cisco CCIE Enterprise Infrastructure (Expert Level)

The CCIE is the pinnacle of Cisco hands-on expertise. The CCIE Enterprise Infrastructure focuses on complex network design and troubleshooting.

v1.1 updates (February 2026):

• Cloud-edge scenarios (AWS, Azure vEdge/cEdge)
• Cisco Crosswork Network Automation as core topic
• YAML/Jinja2 templates for configuration automation
• Ansible integration for batch deployment
• Network telemetry and assurance (Cisco Catalyst Center)
• Intent-Based Networking (IBN)

Time to CCIE from CCNA: Typically 2–4 years with full-time study and production experience.

Cisco CCDE (Design Expert)

For architects with 5+ years experience who focus on network design rather than hands-on operations.

Other Cisco CCIE Tracks (2026)

Cisco offers specialized CCIE certifications for different roles:

Cisco Automation (Formerly DevNet)

February 3, 2026 rebrand: All DevNet certifications became CCNA/CCNP/CCIE Automation.

CCNA Automation

Juniper Networks

Juniper is the second-largest enterprise networking vendor, strong in service provider and cloud environments.

Certification Ladder

Juniper certifications follow four levels with multiple specialization tracks:

Juniper JNCIA-Junos (Associate)

Topics:

• Junos OS fundamentals
• Interface and routing basics
• Configuration and management
• Troubleshooting

Juniper Specialist & Professional by Track

Juniper Open Learning Program

Major advantage: Juniper Open Learning provides:

• Free training courses for all JNCIA/JNCIS/JNCIP certifications
• 75% discount voucher on first exam (applies to first 10,000 candidates per certification per year)

This makes Juniper an extremely cost-effective alternative to Cisco for career-changers.

Aruba / HPE

Aruba (now owned by HPE) focuses on campus access, wireless, and security.

Certification Ladder

Aruba ACA (Associate)

Topics:

• Wired/wireless campus architecture
• Switching, routing, RF fundamentals
• Role-based access control (RBAC)
• Network access control (NAC) basics

Aruba Specialties

• ClearPass (NAC): Network access control, 802.1X, policy management
• Aruba Central / EdgeConnect: Cloud management, SD-WAN
• Mist AI Wireless: AI-driven campus wireless

Arista Networks

Arista dominates data center and hyperscaler networking.

Certification Ladder (ACE Program)

New learning tracks (2026):

• Network Foundations
• Data Center
• Campus
• WAN Routing
• Automation & Scripting

Key Advantage

No prerequisites or order: You can attempt any exam in any track, from Associate to Expert. Passing all Specialist exams automatically grants Professional certification.

Official page: Arista Academy

Mikrotik

Mikrotik is strong in ISP, edge routing, and cost-conscious markets, especially in EMEA and Africa.

Certification Ladder

MTCNA (Associate)

2026 note: MTCNA training was scheduled for May 18-20, 2026 in Sandton, South Africa, indicating strong regional presence.

Wireless (Vendor-Neutral)

CWNP (Certified Wireless Network Professional)

The CWNP is the vendor-neutral wireless certification body, recognized globally.

Certification Progression

2026 Updates

• CWNA-110 launching September 2026 with heavy focus on 802.11ax (Wi-Fi 6/6E) and introductory 802.11be (Wi-Fi 7)
• CWSP-208 already released (Dec 2025) with updated security objectives
• All exams valid for 3 years

Official page: CWNP

SD-WAN and SASE Specialty

Cisco Catalyst SD-WAN (300-415 ENSDWI)

Versa Networks (VCSA, VCSP, VCSE)

Vendor-specific SD-WAN/SASE certifications. VCSA = Associate, VCSP = Professional, VCSE = Expert.

Fortinet NSE 7 SD-WAN

Part of Fortinet's broader Network Security Expert (NSE) program, NSE 7 covers advanced SD-WAN.

Palo Alto Prisma SD-WAN

Advanced SD-WAN design and operations for Palo Alto's Prisma platform.

Zscaler (ZDX, ZIA, ZPA)

Zscaler Digital Experience (ZDX) and Zero Trust Access certifications focus on SASE and cloud security.

Career Progression and Salary

Realistic Timeline: CCNA → Architect (5–10 years)

Salary by Geography (2026)

United States

• Entry (CCNA): $75k–$92k avg
• Mid (CCNP, 5–8 yrs): $100k–$145k
• Senior (CCIE, 10+ yrs): $140k–$220k

Sources:

• Robert Half 2026 Salary Guide
• Glassdoor Network Engineer Salary

United Kingdom

• Entry: £45k–£60k
• Mid: £65k–£95k
• Senior: £100k–£150k+

South Africa (ZAR)

• Entry (Network Technician): R270k–R350k/year
• Mid (Network Engineer, 4–9 yrs): R400k–R500k
• Senior (10+ yrs): R500k–R700k+

Sources:

• PayScale ZA Network Engineer Salary
• Jobted ZA Network Engineer

Free Learning Resources

YouTube Channels

Jeremy's IT Lab

• Host: Jeremy (CCNA/CCNP instructor)
• Content: Free full CCNA 200-301 course, CCNP ENCOR, CCNP specialty exams
• Start here: Free CCNA v1.1 Complete Course 2026 (YouTube Playlist)
• Channel: @JeremysITLab
• Also offers: Paid ad-free version with quizzes and slides

David Bombal

• Cisco, networking fundamentals, labs, GNS3
• Free CCNA and CCNP content

Keith Barker (CBT Nuggets host)

• Extensive free YouTube content on routing, switching, EIGRP, OSPF
• Also available on CBT Nuggets subscription

Kevin Wallace

• Cisco specialist, free CCNA/CCNP videos

Network Collective

• Russ White and peers: networking design philosophy, BGP, troubleshooting
• Available as podcast + blog

Official Vendor Learning

Cisco Networking Academy

• Free CCNA and CCNP Foundation courses
• Access: Cisco Networking Academy

Juniper Open Learning (Premium FREE Program)

• Free courses + 75% discount on first exam
• Access: Juniper Learning Portal

Arista Academy

• Free interactive training and labs
• Access: Arista Academy

Mikrotik Training

• Free and paid courses for RouterOS
• Access: Mikrotik Training

Paid Courses and Platforms

INE (Internetwork Expert)

• Specialty: CCIE Enterprise Infrastructure, CCIE Security
• Cost: Subscription $99–$299/month (or annual plans)
• Strength: Lab-focused, instructor-led, comprehensive
• URL: ine.com

CBT Nuggets

• Specialty: Broad Cisco + vendor training
• Cost: Subscription ~$50–$80/month
• Courses: CCST, CCNA, CCNP Enterprise/Security, CompTIA Network+
• Strength: Video-based, instructor expertise, practice exams
• URL: cbtnuggets.com

Cisco U (Official Cisco Learning)

• Cost: Varies (free-to-premium)
• Courses: Official Cisco training paths
• URL: u.cisco.com

Pluralsight

• Cost: Subscription ~$29/month (annual commitments available)
• Strength: Broad IT + networking paths
• URL: pluralsight.com

Udemy (On-Demand Courses)

Popular instructors:

• Neil Anderson: CCNA, CCNP Security (detailed, exam-focused)
• Lazaro Diaz: Cisco fundamentals
• David Bombal: GNS3 labs, hands-on networking

Cost: $10–$15 per course (typically discounted)

Boson ExSim-Max (Practice Tests)

• Specialty: High-quality practice exams for CCNA, CCNP, CCIE
• Cost: ~$150 for 6-month access
• Strength: Exam accuracy, detailed explanations, testing analytics
• URL: boson.com

Essential Books

Foundational

Cisco-Focused

Automation & Programmability

Conferences and Communities

Major Conferences

Communities & Forums

• Cisco Learning Network: Official Cisco study community
• Juniper Learning Portal: Community and forums
• Arista Community: Technical Q&A and peer learning
• Reddit: r/ccna, r/ccnp, r/ccde, r/Juniper
• Networking Discord/Slack communities: Active peer support

2026 Strategic Notes

Major Changes in Effect

1. CCNA 200-301 v1.1 (Feb 3, 2026): AI, cloud, automation deeply integrated
2. CCNP ENCOR 350-401 v1.2 (March 19, 2026): Wireless removed to specialist exams
3. DevNet → CCNA/CCNP/CCIE Automation (Feb 3, 2026): Automation now standalone CCIE track
4. CCIE Enterprise Infrastructure v1.1 (Feb 2026): Crosswork, YAML/Jinja2, cloud-edge scenarios
5. No CCNA prerequisite for CCNP (effective March 2026): Fast-track possible for experienced IT pros
6. Juniper Open Learning (ongoing): Best-value entry into service provider networking
7. Arista ACE program (no prerequisites): Rapid data center specialist path
8. Mikrotik MTCNA (strong in Africa): Cost-effective for ISP/edge skills

Emerging Opportunities

• Automation expertise now carries equal weight to routing/switching
• SD-WAN + SASE becoming mandatory architecture skills
• Cloud networking (AWS/Azure direct connect, overlay architectures) heavily tested
• AI/ML for networking (intent-based networking, anomaly detection) increasing in visibility

Sources

Cisco Official

• Cisco CCNA 200-301
• Cisco CCNP Enterprise ENCOR 350-401
• Cisco CCIE Enterprise Infrastructure
• Cisco CCST Networking 100-150
• Cisco Networking Academy

Juniper Official

• Juniper Certification Program
• Juniper Learning Portal

Aruba / HPE

• HPE Aruba Certification

Arista

• Arista Academy

CWNP

• CWNP Wireless Certifications

CompTIA

• CompTIA Network+ N10-009

Salary Data

• Robert Half 2026 Salary Guide
• Glassdoor Network Engineer Salary (US)
• PayScale ZA Network Engineer
• Jobted ZA Network Engineer

Study Resources

• Jeremy's IT Lab YouTube
• CBT Nuggets Cisco Training
• INE Internetwork Expert
• Boson ExSim-Max Practice Tests
• Pluralsight Networking Paths

Books

• TCP/IP Illustrated: Addison-Wesley
• Routing TCP/IP Vol 1 & 2: Cisco Press
• High Performance Browser Networking (free): hpbn.co

Additional References

• Cisco CCNA Exam Topics
• CCST Networking Exam Topics
• ENCOR Exam Topics

End of Deep Dive: DOM02_Networking_Domain.md