What’s New in CCIE EI v1.1: A Blueprint Update Overview

The world of network engineering is in a constant state of evolution. New technologies, methodologies, and standards emerge as the needs of enterprises shift toward more scalable, secure, and software-driven infrastructures. As the digital landscape continues to expand, traditional networking methods are giving way to modern frameworks that prioritize automation, programmability, and agility. In this ever-shifting environment, Cisco Systems remains a pivotal force, continually adapting and updating its certification programs to reflect industry demands. One of the most significant certifications in this realm is the Cisco Certified Internetwork Expert (CCIE) Enterprise Infrastructure (EI).

The Significance of the CCIE EI Certification

The CCIE EI certification is one of the most respected credentials in the field of networking. It is designed for professionals who aspire to demonstrate their expert-level skills in enterprise infrastructure technologies. As a result, the blueprint that outlines the topics covered in the CCIE EI exam must remain current and relevant. To this end, Cisco introduced an updated version of the blueprint: version 1.1. This update is not merely a collection of incremental adjustments. It reflects a broader strategic realignment toward key technologies that are becoming indispensable in enterprise networks.

High-Level Overview of Changes from v1.0 to v1.1

At a high level, the transition from version 1.0 to version 1.1 of the CCIE EI blueprint emphasizes the growing relevance of Software Defined Networking (SDN) technologies, particularly SD Access (SDA) and SD-WAN. These technologies are crucial in enabling scalable and flexible network architectures. While the foundational principles of networking remain, the tools and technologies used to implement them are shifting. For professionals preparing for the CCIE EI exam, understanding these changes is vital.

Evolving Role of Software-Defined Networking in CCIE EI

Software-defined networking is not a new concept, but its adoption across enterprise environments has accelerated in recent years. SDN abstracts the control plane from the data plane, allowing centralized and programmable management of the entire network. Cisco’s increasing focus on SDN through SDA and SD-WAN is a reflection of the broader industry movement. Consequently, version 1.1 of the blueprint places a more significant emphasis on these technologies, reinforcing their importance for candidates.

Routing and Switching: Key Blueprint Enhancements in v1.1

Routing and Switching remain foundational components of any enterprise network. However, Cisco’s latest updates to this section indicate a shift toward more advanced, flexible, and scalable networking solutions. The changes in version 1.1 reflect the growing complexity of enterprise environments and the need for engineers to manage traffic across multiple locations, systems, and technologies.

Multi-Chassis Ethernet Use-Case Scenarios

One of the most notable additions to the Routing and Switching section is the inclusion of Multi-Chassis Ethernet use-case scenarios. Multi-Chassis configurations are designed to enhance the scalability and reliability of enterprise networks by allowing multiple physical switches to operate as a single logical switch. This configuration is especially useful in large-scale, distributed network environments where redundancy and high availability are critical.

By including this topic, Cisco is signaling the need for candidates to understand how Ethernet technologies are deployed in more complex topologies. Engineers must be able to design and implement Multi-Chassis solutions that ensure seamless failover and load balancing while maintaining optimal performance.

Route Leaking Between VRFs

Another critical enhancement is the addition of route leaking between Virtual Routing and Forwarding instances (VRFs). Route leaking is a method used to enable communication between separate VRFs by allowing specific routes to be shared. This capability is crucial in multi-tenant environments where different departments or customers need isolated routing domains but still require limited interconnectivity.

Understanding how to configure and troubleshoot route leaking scenarios is essential for network engineers working in large-scale enterprise networks. It provides greater flexibility and control in managing routing policies across isolated network segments.

Emphasis on OSPFv3 Address Family Configuration

OSPFv3 has long supported IPv6, but with the blueprint update, there is a clearer emphasis on the Address Family configuration model. This change highlights the increasing importance of IPv6 in enterprise networks. As IPv4 address space becomes increasingly constrained, the transition to IPv6 is gaining momentum. Engineers must be well-versed in configuring OSPFv3 for IPv6 to ensure compatibility with modern networking standards.

The Address Family model in OSPFv3 allows for more granular control and support for both IPv4 and IPv6 under a unified configuration structure. This not only simplifies management but also aligns with the dual-stack deployment strategies employed by many organizations.

Removal of Legacy Technologies

In addition to new topics, version 1.1 of the blueprint has removed several legacy technologies. Topics such as VLAN Trunking Protocol (VTP), EIGRP Load Balancing, and Loop-Free Alternate (LFA) have been excluded. This decision reflects a strategic move away from older technologies that are either less relevant in modern networks or have limited adoption in current enterprise environments.

Removing these topics allows Cisco to allocate more blueprint space to emerging technologies and advanced configurations that better align with real-world enterprise needs. For candidates, this means a reduced focus on legacy protocols and an increased emphasis on learning tools and techniques that are shaping the future of networking.

Impact on Exam Preparation

For individuals who have been preparing for the CCIE EI exam based on version 1.0, the transition to version 1.1 may initially seem daunting. However, the core fundamentals remain largely unchanged. The updates do not signify a complete overhaul but rather a realignment of priorities. Candidates should focus on deepening their understanding of the newly added topics, especially those related to SDN and modern routing configurations.

Resources and study plans may need to be adjusted to reflect the new content. Hands-on practice with Multi-Chassis Ethernet setups, route leaking configurations, and OSPFv3 Address Family models will be essential. It is also advisable to review Cisco documentation and lab guides to understand the practical implications of these topics.

The Bigger Picture in Routing and Switching

Overall, the updates to the Routing and Switching section of the CCIE EI blueprint underscore the need for adaptability and continuous learning. The network engineer of today must be equipped not only with foundational knowledge but also with the ability to implement advanced technologies in a rapidly evolving landscape. By aligning the blueprint with these demands, Cisco is ensuring that CCIE-certified professionals remain at the forefront of enterprise networking.

 SDN Technologies and the Modern Enterprise Network

Deepening Focus on Software-Defined Networking

The rise of Software Defined Networking has reshaped the way enterprise networks are designed, implemented, and managed. As networks become more complex and distributed, traditional networking paradigms are often insufficient to meet the needs of modern businesses. The CCIE EI v1.1 blueprint reflects this evolution by significantly expanding its coverage of SDN technologies. Two major pillars of this shift are Software-Defined Access (SDA) and Software-Defined Wide Area Networking (SD-WAN).

SDA: Software-Defined Access in Enterprise Networks

Software-Defined Access represents a modern approach to managing campus networks. At its core, SDA abstracts the underlying network infrastructure and provides a centralized method of configuring and managing policies. With SDA, network administrators can create secure and scalable network segments without the need for manual configuration at each network device.

The updated blueprint emphasizes three critical components of SDA:

SDA Transit

SDA Transit is a method of enabling interconnectivity between multiple SDA fabrics or between SDA and traditional routed networks. This is vital in large enterprise environments that operate across multiple campuses or data centers. Candidates must understand how to configure SDA Transit using Cisco DNA Center, how to integrate BGP or other routing protocols, and how to troubleshoot connectivity issues that may arise in hybrid SDA environments.

Understanding SDA Transit is crucial for ensuring seamless communication across different network domains. Engineers need to design Transit solutions that maintain performance, security, and scalability.

Layer 2 Handoff

Another vital topic introduced in v1.1 is Layer 2 Handoff within SDA. Layer 2 Handoff allows integration with legacy systems that require Layer 2 adjacency. This capability is particularly important in environments where not all systems have migrated to SDA.

Candidates need to understand the scenarios in which L2 Handoff is appropriate, the configuration steps involved, and how to ensure that services such as DHCP and DNS function correctly across the handoff boundary. A deep knowledge of encapsulation techniques and control plane operations within the SDA fabric is essential.

Fabric-in-a-Box

Fabric-in-a-Box is an architectural approach that consolidates the SDA control plane and data plane functions within a single switch or a pair of switches. This model is ideal for smaller branch locations that may not require the complexity of a full SDA deployment.

From an exam perspective, candidates should be prepared to design and deploy Fabric-in-a-Box solutions. This includes understanding the limitations, configuration steps, and integration with the larger SDA architecture. Fabric-in-a-Box exemplifies Cisco’s approach to making advanced networking accessible to smaller enterprise environments.

SD-WAN: Centralized Policy and Intelligent Routing

Software-Defined Wide Area Networking has transformed how organizations connect their remote branches and cloud environments. By decoupling the control plane from the data plane, SD-WAN enables centralized management, dynamic path selection, and application-aware routing.

Centralized Policy Management

Centralized policies in SD-WAN allow network administrators to define traffic handling behaviors based on a wide array of parameters, including application type, source and destination, user identity, and real-time network conditions. These policies are created and managed via the SD-WAN controller, often through a graphical interface.

Understanding how to create, apply, and troubleshoot centralized policies is essential for exam success. Candidates must be familiar with policy constructs such as lists, sequences, and match-action pairs. Practical scenarios may include prioritizing VoIP traffic over less latency-sensitive data or redirecting traffic to alternative paths during link degradation.

Application-Aware Routing

Application-Aware Routing is a key feature that allows the SD-WAN fabric to make intelligent decisions about traffic forwarding based on application type and real-time performance metrics such as latency, jitter, and packet loss. This ensures optimal user experience and efficient utilization of available bandwidth.

For the exam, candidates should understand how to classify applications, define performance thresholds, and configure policies that dynamically reroute traffic based on real-time metrics. Troubleshooting scenarios may include misclassified applications, incorrect threshold definitions, or path selection failures.

Traffic Engineering

Traffic Engineering in SD-WAN refers to the capability to influence the path selection and load distribution of traffic across multiple WAN links. This includes features such as path affinity, preferred path selection, and failover strategies.

A comprehensive understanding of traffic engineering concepts is necessary to design robust SD-WAN solutions. Candidates must be able to configure path preferences, implement redundancy, and monitor performance across multiple transports such as MPLS, broadband, and LTE.

The Growing Relevance of SDN in the Enterprise Landscape

The inclusion of expanded SDN topics in the CCIE EI v1.1 blueprint mirrors the industry’s growing reliance on these technologies. As enterprises embrace digital transformation, cloud migration, and hybrid work models, the agility and control provided by SDN become indispensable. Candidates preparing for the exam must not only learn to configure and troubleshoot these technologies but also understand their strategic value in modern enterprise networks.

Security, Automation & Programmability, and Network Architecture

The Security section of the CCIE EI blueprint remains critical despite the relatively few changes in version 1.1. While no new technologies have been added, one notable removal is that of FlexVPN, which previously served as a significant component in VPN-related topics. The removal of FlexVPN from the updated blueprint is not a dismissal of the technology’s relevance, but rather a realignment towards more contemporary solutions that better integrate with evolving enterprise architectures.

Rationale Behind FlexVPN Removal

FlexVPN, built on IKEv2, was introduced as a unified framework to simplify the configuration and deployment of various VPN topologies. It provided a standardized solution for point-to-point and hub-and-spoke VPNs. However, in recent years, VPN strategies have shifted towards SD-WAN solutions and cloud-based secure access methods. The removal of FlexVPN likely reflects this industry shift.

Modern enterprises are embracing SD-WAN and Secure Access Service Edge (SASE) models, where traditional VPN configurations like FlexVPN are being replaced with more dynamic and scalable solutions. From an exam preparation standpoint, this means candidates can now focus more on SD-WAN security features, segmentation, and policy-based access control.

Continued Importance of Network Security Fundamentals

Although FlexVPN has been removed, core security principles remain fundamental to the CCIE EI blueprint. Candidates are still expected to demonstrate in-depth knowledge of access control mechanisms, segmentation strategies, encryption methods, and secure protocol usage. Security is embedded across all technology domains, and a holistic understanding of how security integrates with routing, switching, SDN, and automation is essential.

For example, understanding how to implement secure segmentation in SDA, how to apply policies in SD-WAN to enforce security standards, and how to utilize infrastructure ACLs effectively are all critical skills. Network security in modern enterprise environments goes beyond firewalls and VPNs; it is about implementing comprehensive strategies that protect data in motion and at rest.

Best Practices for Security Preparation

While specific topics may have been removed, it remains essential for candidates to:

• Understand the principles of AAA (Authentication, Authorization, and Accounting)
• Be familiar with role-based access control (RBAC) and device hardening
• Know how to deploy infrastructure security policies using access control lists and control plane protection
• Gain experience with network telemetry tools for security monitoring

Practical lab exercises that combine security with SDA or SD-WAN scenarios can significantly enhance a candidate’s readiness.

Advances in Automation and Programmability

Network automation is no longer a niche skill; it is a foundational requirement for enterprise engineers. The ability to automate routine tasks, ensure consistency, and manage complex deployments through code has become a core competency. The CCIE EI v1.1 blueprint maintains its focus on this critical domain, reflecting its growing importance in real-world network operations.

Core Topics in Automation and Programmability

This section continues to include:

• Model-driven programmability (YANG, NETCONF, RESTCONF)
• Data encoding formats (JSON, XML, YAML)
• APIs (REST APIs, Cisco DNA Center APIs, SD-WAN vManage APIs)
• Scripting with Python for network automation
• Network configuration management tools and methodologies

These topics ensure that candidates not only understand how to use the tools but also how to integrate automation into the broader lifecycle of enterprise network management.

Practical Applications in Enterprise Networks

Automation is especially beneficial in environments with a large number of devices or frequent configuration changes. For instance, using Python scripts to push configurations across devices, retrieve operational data, or perform bulk software upgrades can save countless hours. Similarly, REST APIs can facilitate real-time interaction with controllers such as Cisco DNA Center and SD-WAN vManage.

Candidates should be able to:

• Use REST APIs to extract device inventory and configuration data
• Utilize YANG models to understand the structure of device configurations
• Implement Python scripts to interact with network devices and controllers
• Develop playbooks for repeatable deployment scenarios

Preparing for Automation Topics

To succeed in this domain, candidates must bridge the gap between theoretical knowledge and hands-on practice. This includes building labs with programmable interfaces, interacting with sandbox environments, and writing custom scripts. Familiarity with tools like Postman for API testing and Git for version control is also recommended.

Integration with SDA and SD-WAN

Automation is tightly integrated with both SDA and SD-WAN. For example, network intent in SDA is expressed through Cisco DNA Center APIs. Similarly, vManage APIs enable automation of policy creation and monitoring in SD-WAN deployments. Mastery of these APIs allows engineers to manage large-scale networks with greater agility and precision.

Network Architecture: Strategy and Design Thinking

Enterprise network architecture is no longer confined to the traditional core, distribution, and access layers. With the adoption of cloud services, virtualization, and hybrid infrastructures, the architectural approach has evolved into a more fluid, application-centric model. The CCIE EI blueprint incorporates this shift by emphasizing architectural design principles that align with modern networking goals.

Key Concepts in Network Architecture

The blueprint expects candidates to be proficient in:

• Designing scalable and redundant topologies
• Applying hierarchical network design principles
• Implementing segmentation and isolation at scale
• Designing for high availability and fault tolerance
• Planning for cloud integration and hybrid deployments

These principles are applicable across various environments, including campus, WAN, data center, and branch networks.

Focus on Design and Decision-Making

Beyond technical implementation, network architects must make informed decisions based on business needs, performance requirements, and operational constraints. Candidates must demonstrate the ability to:

• Evaluate trade-offs between different design options
• Align technical designs with business objectives
• Document and communicate architectural decisions effectively

This requires a deep understanding of technologies as well as strong analytical and communication skills.

Integration with Automation and Security

Modern network architecture is inseparable from automation and security. Architects must ensure that networks are designed for programmability from the ground up, enabling seamless integration with automation tools and APIs. Security must also be embedded into the design phase, incorporating zero trust principles, segmentation strategies, and policy enforcement mechanisms.

For example, an architect designing a multi-site enterprise network must consider:

• SD-WAN topology for resilient inter-site connectivity
• SDA for simplified access control and user segmentation
• Cloud on-ramp strategies for secure SaaS access
• Automation frameworks for lifecycle management

Preparing for Architectural Topics

Candidates should familiarize themselves with network design frameworks such as the Cisco Validated Designs (CVDs). Reviewing case studies, performing network assessments, and participating in design discussions can also enhance their strategic thinking. Lab exercises that involve designing and justifying network topologies will provide practical experience that mirrors real-world architectural challenges.

Strategic Preparation and Future-Proofing Your CCIE EI Journey

Adapting Your Study Approach to the Updated Blueprint

With the blueprint update from version 1.0 to 1.1, candidates must adapt their preparation strategies to align with the new requirements. While the core technologies such as routing, switching, and general network design remain foundational, the emphasis has now shifted to include advanced topics in SDN, automation, and architectural strategy. As a result, study approaches should now emphasize hands-on lab practice, integrated toolsets like Cisco DNA Center, and configuration experience across both traditional and modern network infrastructures.

Students should begin by identifying the key differences introduced in the v1.1 blueprint and mapping them against their current knowledge and skill levels. This process involves conducting a thorough gap analysis to determine which areas need further study or reinforcement. Leveraging resources such as lab simulators, configuration guides, and training courses focused on the new SD-WAN, SDA, and automation topics will be crucial for mastering the updated content.

Utilizing Labs and Simulations for Practical Proficiency

Practical experience has always been a critical component of success in any CCIE certification, and this remains true for the Enterprise Infrastructure track. Given the growing complexity and integration of technologies in modern networks, theoretical understanding alone is insufficient. Hands-on practice with real or simulated environments is essential to develop the deep, intuitive understanding required to troubleshoot and design complex networks effectively.

Candidates should prioritize the use of labs to replicate enterprise network scenarios, including those involving SDA Transit, SD-WAN policies, multi-chassis configurations, and dynamic path selection. Lab platforms that support full-stack emulation of Cisco technologies provide invaluable experience, helping candidates develop the muscle memory and configuration accuracy necessary for success in the lab exam.

Learning to Think Like a Network Architect

One of the most significant evolutions in the CCIE EI blueprint is the emphasis on high-level design and architecture. Beyond knowing how to configure protocols, candidates must now understand the broader strategic implications of design decisions. This includes considerations of scalability, redundancy, security, cost efficiency, and future growth.

Candidates should practice creating and defending network designs that incorporate SDN, automation, and traditional technologies in hybrid environments. By developing the mindset of a network architect, CCIE aspirants can not only pass the exam but also position themselves for leadership roles in enterprise IT organizations.

Emphasizing Interdisciplinary Knowledge

Modern enterprise infrastructure is no longer isolated from other IT disciplines. Network engineers today must understand how networking interacts with cloud platforms, security frameworks, application performance, and end-user experience. The v1.1 blueprint subtly reflects this shift, especially through its emphasis on network programmability and automation.

To excel in the exam and real-world roles, candidates should explore foundational knowledge in adjacent areas such as DevOps, ITIL practices, and security operations. Understanding how network infrastructure supports business processes and digital transformation initiatives adds valuable context to the technical skills assessed in the exam.

Building a Long-Term Learning Plan

The journey to earning a CCIE certification does not end with passing the exam. Given the rapid pace of technological change, continuous learning is essential to remain effective and competitive. Candidates should view the certification as a milestone within a lifelong commitment to professional development.

Establishing a long-term learning plan that includes emerging technologies such as intent-based networking, zero-trust security, cloud-managed services, and AI-driven network analytics will ensure that your skills remain relevant. Participating in industry forums, attending conferences, and contributing to knowledge-sharing communities can also help reinforce learning and provide growth opportunities.

Conclusion

The CCIE Enterprise Infrastructure v1.1 blueprint is a forward-looking update that prepares candidates to meet the evolving needs of modern enterprise networks. By expanding the focus to include SDN, automation, and architectural best practices, Cisco is ensuring that CCIE-certified professionals are equipped to design and manage the networks of tomorrow.

Rather than viewing the changes as obstacles, candidates should see them as opportunities to deepen their expertise and broaden their impact. With the right mindset, study approach, and practical experience, earning the CCIE EI certification remains one of the most rewarding and career-enhancing achievements in the networking industry.