Cisco CCIE Enterprise Infrastructure Exam Guide 2026: Everything You Need to Pass
Updated May 1, 202612 min readWritten by Certsqill experts
Quick facts — CCIE Enterprise Infrastructure
Exam cost
$450 written + $1,600 lab
Questions
Written: 90 items / Lab: 8-hour practical
Time limit
120 min written + 8 hr lab
Passing score
Written scaled / Lab pass-fail
Valid for
3 years
Testing
Pearson VUE (written) + Cisco (lab)
Who this exam is for
The Cisco CCIE Enterprise Infrastructure certification is designed for professionals who work with or want to work with Cisco technologies in a professional capacity. It is taken by cloud engineers, DevOps practitioners, IT administrators, and technical professionals looking to validate their expertise.
You do not need extensive prior experience to attempt it, but you will benefit from hands-on familiarity with the subject matter. The exam tests applied knowledge and architectural judgment, not just memorization. If you can reason about trade-offs and real-world scenarios, structured practice will handle the rest.
Domain breakdown
The CCIE Enterprise Infrastructure exam is built around official domains, each with a fixed percentage of the question pool. This distribution should directly inform how you allocate your study time.
SD-Access full fabric deployment (underlay, overlay, control plane with LISP), SD-WAN architecture (vEdge, vSmart, vBond, vManage), OMP protocol, and policy configuration.
Transport Technologies
15%
MPLS LDP, VPNv4/VPNv6, L3VPN design, Segment Routing (SR-MPLS, SRv6), traffic engineering with RSVP-TE and SR-TE policies.
Infrastructure Security
15%
PKI hierarchy with sub-CAs, 802.1X with ISE (EAP-TLS, PEAP, TEAP), MACsec, CoPP, ZBPF, IPsec profiles, TrustSec with SGT propagation via SXP.
Infrastructure Services
15%
IP SLA with threshold-based tracking, Netflow/IPFIX, SNMP v3, EEM applets and policies, network automation (Python, NETCONF/YANG, RESTCONF, Ansible, DNA Center API).
Note the domain with the highest weight — many candidates under-invest here because it feels conceptual. In practice, this is where the exam is most precise, with scenario-based questions that test specifics.
What the exam actually tests
This is not a memorization exam. Questions require applied judgment under constraints. Almost every question includes a scenario with explicit requirements and asks you to select the most appropriate solution.
Here are examples of the question types you will encounter:
Written exam: advanced scenario analysis
"An MPLS VPN provider needs to allow two customers in different VPNs to access a shared service. Which MPLS VPN inter-option architecture should be used and why?"
Written exam tests conceptual depth at an architectural level. Questions assume deep familiarity with all mechanisms — you are expected to compare design tradeoffs, not just recall commands.
Lab: multi-topology configuration
"Configure full-mesh DMVPN Phase 3 with EIGRP between one hub and four spokes. All spokes must reach each other with spoke-to-spoke shortcuts. Verify with show dmvpn detail."
Lab tasks are interconnected. An incorrect IP addressing scheme or missed NHRP registration in task 2 will cause spoke-to-spoke failures in task 7. Reread the full topology before typing a single command.
Lab: troubleshooting section
"BGP session between R3 and R5 is not establishing. Identify and fix the issue without modifying the AS numbers or IP addresses."
Troubleshooting sections are timed separately. Develop a systematic approach: check physical → control plane → policy. Using show commands efficiently is the difference between passing and failing.
How to prepare — 4-week study plan
This plan assumes one hour per weekday and roughly 30 minutes of lighter review on weekends. It is calibrated for someone with some relevant experience. If you are starting from zero, add an extra week before Week 1 to familiarise yourself with the basics.
SD-Access and SD-WAN: deploy full labs using Cisco VIRL or CML
W2
Weeks 5–8: Lab environment setup + task practice
Build a 10-router topology in CML covering all exam domains
Practice full SD-Access fabric deployment from scratch (day 0 to verified)
Segment Routing: configure SR-MPLS with adjacency and prefix SIDs, SR-TE policy
Security: full PKI with sub-CA signing, 802.1X CoA, MACsec on IOS-XE
W3
Weeks 9–12: Full 8-hour mock labs
Complete your first full 8-hour mock lab without stopping — record what you did not finish
Automation: NETCONF with ncclient, Python with netmiko for bulk config, RESTCONF with requests
Second 8-hour mock lab — reduce unfinished task count vs first attempt
Written exam: take two full 90-question timed mocks, target 85%+ before booking
Common mistakes candidates make
These patterns appear repeatedly among candidates who resit this exam. Knowing them in advance is worth several percentage points.
Passing the written without being lab-ready
Many candidates book the lab immediately after passing the written because it is valid for 18 months. The written tests concepts; the lab requires hours of daily CLI practice. Candidates who start lab prep without 200+ hours in CML consistently fail. The written should be the start of your preparation, not the finish.
Underestimating task dependencies in the lab
The CCIE lab is designed as an integrated topology. A misconfigured OSPF process ID or wrong subnet mask in task 1 will cause BGP adjacency failures in task 4 and VPN failures in task 6. Reread the entire topology diagram and understand all addressing before starting any configuration.
Weak Segment Routing and automation knowledge
SR-MPLS, SRv6, and network automation are newer topics that receive disproportionately low study time from legacy networking professionals. These topics have grown in lab weight. Dedicate at least two full study weeks to SR and automation separately.
Not timing your mock labs
Eight hours feels long during practice but disappears under exam pressure. Many candidates run timed labs for the first time at the real exam. Practice with an alarm. If you cannot finish 80% of your mock lab in 8 hours, you are not ready.
Is Certsqill right for you?
Honestly: Certsqill is built for candidates who have already done some studying and want to convert knowledge into exam performance. If you have never touched the subject, start with a foundational course first — then come to Certsqill when you are ready to practice.
Where Certsqill is strong: question depth, AI-powered explanations, and domain analytics. Every question is mapped to the exam blueprint. When you get something wrong, the AI tutor explains why the right answer is right and why each wrong answer fails under the specific constraints in the question.
Where Certsqill is not a replacement: video courses and hands-on labs. Use Certsqill to test and sharpen — not as your first exposure to a topic you have never encountered.