π About this Domain
This domain covers foundational Layer 2 technologies within Arista EOS. It emphasizes the configuration and verification of VLANs, Spanning Tree Protocol, and link aggregation. Mastery is essential for building stable and efficient switched networks.
π What You Will Learn
- Configure and verify VLANs and 802.1Q trunk ports for network segmentation.
- Understand the operation of STP, RSTP, and MSTP to prevent Layer 2 loops.
- Implement and troubleshoot static and LACP-based port-channels for link aggregation.
- Analyze the MAC address table to understand Layer 2 forwarding decisions in EOS.
π οΈ Skills You Will Build
- Ability to deploy multi-VLAN environments using access and trunk port configurations.
- Skill to manipulate STP root bridge election and ensure a loop-free topology.
- Competency in bundling physical links into a logical port-channel for increased bandwidth.
- Proficiency in using `show` commands to validate Layer 2 operational states.
π‘ Top Tips to Prepare
- Focus on the `show vlan`, `show interface trunk`, and `show mac address-table` commands for verification.
- Memorize the differences between STP, RSTP, and MSTP convergence mechanisms.
- Practice configuring LACP port-channels and understand the active/passive negotiation modes.
- Understand how an EOS switch learns MAC addresses and forwards or floods frames.
π About this Domain
This domain covers key concepts related to 2: Arista EOS.
π What You Will Learn
- Core concepts of 2: Arista EOS
- Best practices and implementation
- Real-world application scenarios
π οΈ Skills You Will Build
- Technical proficiency in 2: Arista EOS
- Problem-solving abilities
- Practical implementation skills
π‘ Top Tips to Prepare
- Review official documentation and study guides
- Practice with hands-on exercises
- Focus on understanding core principles
π About this Domain
This domain covers fundamental IP routing configurations and verification on Arista EOS. It focuses on static routes, dynamic routing protocols like OSPF and BGP, and first-hop redundancy mechanisms.
π What You Will Learn
- Learn to configure and verify static routes, including floating static routes for backup paths.
- Understand single-area OSPFv2 configuration, neighbor adjacencies, and route advertisement.
- Grasp basic BGP concepts, including peer configuration and route exchange between autonomous systems.
- Discover Arista's Virtual ARP (VARP) for implementing active-active first-hop redundancy.
π οΈ Skills You Will Build
- You will build the skill to interpret the EOS IP routing table to validate route installation and selection.
- You will develop the ability to use show commands to troubleshoot OSPF and BGP neighbor states.
- You will gain proficiency in configuring and verifying VARP for highly available default gateways.
- You will learn to apply basic route maps to influence routing decisions for traffic engineering.
π‘ Top Tips to Prepare
- Master the 'show ip route' command and its output to quickly diagnose routing issues.
- Practice configuring OSPF neighbor relationships and understand the states they transition through.
- Differentiate between iBGP and eBGP peering rules and their default administrative distances.
- Understand the function of the VARP virtual MAC address and its role in active-active forwarding.
π About this Domain
This domain covers the core management and monitoring functions within Arista EOS. You will learn initial device provisioning, user management, and system event logging. It also introduces network monitoring protocols and centralized management with CloudVision.
π What You Will Learn
- Configure initial switch access through Zero Touch Provisioning (ZTP) and manual console setup.
- Implement user accounts, roles, and AAA for secure CLI and eAPI access.
- Set up system logging to various destinations and filter by severity levels for event tracking.
- Enable and verify monitoring protocols including SNMP, sFlow, and IPFIX for network visibility.
π οΈ Skills You Will Build
- Perform day-zero switch provisioning using ZTP scripts or manual CLI configuration.
- Secure device management access using local RBAC and external TACACS+ or RADIUS servers.
- Analyze syslog messages and `show logging` output to troubleshoot EOS system events.
- Integrate Arista switches with Network Management Systems (NMS) using SNMP and telemetry.
π‘ Top Tips to Prepare
- Drill the ZTP boot process, including DHCP options and script execution order.
- Practice the CLI commands for creating AAA server groups and applying authorization rules.
- Memorize the different logging severity levels and their corresponding numerical values.
- Understand the basic architecture of CloudVision Portal (CVP) for centralized configuration and telemetry.
π About this Domain
This domain focuses on the systematic process of identifying, isolating, and resolving common network issues on Arista switches. It covers troubleshooting methodologies for Layer 1, Layer 2, and Layer 3 problems using Arista EOS CLI commands and tools.
π What You Will Learn
- You will learn to diagnose physical layer problems by checking interface status, SFP diagnostics, and cabling issues.
- You will learn to resolve Layer 2 issues related to VLANs, port-channels, MLAG, and Spanning Tree Protocol (STP).
- You will learn to troubleshoot Layer 3 connectivity by verifying IP addressing, routing tables, and using tools like ping and traceroute.
- You will learn to utilize EOS-specific tools like logging, tcpdump, and event-monitor for advanced fault analysis.
π οΈ Skills You Will Build
- You will build the skill to interpret the output of various EOS `show` commands to gather critical diagnostic data.
- You will build the ability to apply a layered troubleshooting approach, starting from the physical layer upwards.
- You will build proficiency in using the EOS CLI to quickly isolate network faults to a specific device or protocol.
- You will build the skill to analyze system logs and event history to understand the root cause of a network failure.
π‘ Top Tips to Prepare
- Memorize the key outputs of commands like `show interfaces status`, `show vlan`, `show mlag`, and `show ip route`.
- Practice troubleshooting common scenarios in a vEOS lab, such as misconfigured VLANs or static routes.
- Understand how to use basic EOS tools like `ping`, `traceroute`, and `tcpdump` for connectivity and packet analysis.
- Learn to correlate log messages from `show logging` with specific network events to speed up problem resolution.
π About this Domain
This domain covers Arista's hardware portfolio, focusing on the 7000 series switches. It details the physical characteristics and components of both fixed and modular chassis systems used in modern data centers.
π What You Will Learn
- Differentiate between Arista switch families like the 7050X, 7280R, and 7500R series for spine-leaf architectures.
- Identify core hardware components including supervisors, fabric modules, line cards, and power supply units (PSUs).
- Recognize port numbering and interface naming conventions for Ethernet, Management, and Console ports.
- Understand airflow directionality, specifically front-to-rear and rear-to-front cooling, and its impact on data center design.
π οΈ Skills You Will Build
- Ability to physically identify Arista switch models and their primary use cases in a network topology.
- Skill to differentiate between field-replaceable units (FRUs) like transceivers, PSUs, and fan modules.
- Competency in interpreting status LEDs on the chassis for power, fan, and system health diagnostics.
- Proficiency in selecting appropriate hardware based on port density, speed requirements, and physical deployment constraints.
π‘ Top Tips to Prepare
- Thoroughly review the Arista 7000 series data sheets available on the official Arista website.
- Memorize the hardware model numbering scheme to decode platform capabilities like port count and speed.
- Focus on the architectural differences between modular chassis systems and fixed-configuration switches.
- Study diagrams of front-to-rear (forward) and rear-to-front (reverse) airflow to understand cooling in hot/cold aisle designs.
π About this Domain
This domain details the initial configuration and deployment of Arista switches running EOS. It covers the processes for bringing a device from a factory default state to a fully provisioned, operational state. Core concepts include Zero Touch Provisioning (ZTP) and management plane configuration.
π What You Will Learn
- Understand the Zero Touch Provisioning (ZTP) workflow, including DHCP options and script execution for automated deployment.
- Learn the manual process for initial switch setup, including console access, hostname configuration, and management interface setup.
- Explore how Advanced Event Management (AEM) triggers scripts based on system events for dynamic configuration changes.
- Master the management of configuration files, including saving the running-config to the startup-config and checkpointing.
π οΈ Skills You Will Build
- Deploy Arista switches at scale using the Zero Touch Provisioning (ZTP) framework.
- Perform initial device bootstrapping and management plane configuration via the EOS command-line interface (CLI).
- Leverage EOS scripting and Advanced Event Management (AEM) for event-driven, automated provisioning tasks.
- Implement configuration versioning and rollback procedures using configuration checkpoints.
π‘ Top Tips to Prepare
- Practice the full ZTP workflow in a lab, including DHCP server setup and script retrieval via TFTP or HTTP.
- Memorize the commands for managing configurations, such as `copy running-config startup-config` and checkpoint management.
- Understand the components of an AEM trigger, including event handlers, actions, and script execution.
- Know the different ZTP modes and how to verify the ZTP status using `show ztp status`.
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