Visão Geral

O curso Oracle Linux Networking for Virtualization apresenta os conceitos, as arquiteturas e as técnicas de configuração, administração e troubleshooting de redes em ambientes virtualizados baseados em Oracle Linux e KVM. A capacitação aborda a integração entre interfaces de rede físicas e virtuais, bridges Linux, VLANs, bonding, roteamento, NAT, segmentação de tráfego e conectividade entre máquinas virtuais, hosts de virtualização e redes externas.

Os participantes aprenderão a configurar redes virtuais utilizando ferramentas nativas do Oracle Linux, NetworkManager e componentes de gerenciamento do KVM, compreendendo como o tráfego circula entre as interfaces físicas, as interfaces virtuais e as redes de máquinas virtuais. O curso também contempla práticas de alta disponibilidade de conectividade, diagnóstico de falhas, análise de pacotes e avaliação de desempenho em cenários de infraestrutura corporativa.

Por meio de laboratórios progressivos e exercícios integrados, os participantes desenvolverão competências para implementar topologias de rede para máquinas virtuais, segmentar ambientes, validar conectividade, identificar problemas de configuração e aplicar procedimentos sistemáticos de troubleshooting. O treinamento é direcionado a profissionais que atuam na administração de sistemas Linux, virtualização, infraestrutura e operações de datacenter.

Objetivo

Após realizar este curso Oracle Linux Networking for Virtualization, você será capaz de:

• Compreender a arquitetura de redes em ambientes Oracle Linux com KVM e libvirt.
• Configurar e administrar interfaces de rede físicas e virtuais utilizando ferramentas nativas do Linux.
• Implementar redes virtuais com NAT, bridges e conectividade entre máquinas virtuais e redes externas.
• Configurar VLANs e aplicar princípios de segmentação de tráfego em ambientes virtualizados.
• Implementar bonding e validar mecanismos de redundância de interfaces de rede.
• Analisar tabelas de roteamento, resolução de nomes e caminhos de comunicação entre sistemas.
• Diagnosticar falhas de conectividade utilizando ferramentas de análise e captura de pacotes.
• Identificar problemas de desempenho, erros de interface, perda de pacotes e limitações de conectividade.
• Executar procedimentos de validação e documentação de topologias de redes virtualizadas.

Publico Alvo

• Administradores de Sistemas Linux
• Administradores de Oracle Linux
• Administradores de ambientes virtualizados
• Engenheiros de Infraestrutura e Datacenter
• Analistas de Redes e Infraestrutura
• Profissionais de Suporte Técnico e Operações de TI
• Profissionais de Cloud e DevOps que trabalham com Linux e KVM

Pre-Requisitos

• Conhecimentos básicos de administração Linux e utilização do terminal.
• Familiaridade com endereçamento IP, máscaras de rede, gateways, DNS e conceitos de Ethernet.
• Conhecimentos básicos de virtualização e máquinas virtuais.
• Experiência prévia com configuração de redes Linux é recomendada, mas não obrigatória.

Materiais

Conteúdo Programatico

Module 1 – Networking Fundamentals for Virtualization

1. Virtualization networking architecture and communication flows
2. Physical network interfaces and virtual network interfaces (vNICs)
3. Ethernet, MAC addresses, IPv4 addressing and subnetting
4. Default gateways, routing tables and DNS resolution
5. Host networking versus guest operating system networking
6. Layer 2 and Layer 3 communication in virtualized environments
7. Network isolation, segmentation and connectivity requirements
8. Practical lab: mapping the network topology of a virtualization host

Module 2 – Oracle Linux Network Configuration

1. Network interface discovery and status verification
2. Network configuration using NetworkManager and nmcli
3. Managing connection profiles and persistent configurations
4. Static IP addressing, gateways, DNS and routing
5. Managing interface activation, deactivation and reconnection
6. Using ip link, ip address and ip route for network administration
7. Validating network connectivity and name resolution
8. Practical lab: configuring and validating host network interfaces

Module 3 – KVM Virtual Networking and libvirt

1. KVM, QEMU and libvirt networking architecture
2. Virtual network discovery and administration using virsh
3. Default virtual networks and Network Address Translation (NAT)
4. Virtual network creation, activation and persistent configuration
5. Virtual network XML definitions and network lifecycle management
6. Attaching virtual network interfaces to virtual machines
7. DHCP services and IP address assignment in virtual networks
8. Connectivity between virtual machines, host systems and external networks
9. Practical lab: creating a virtual network and connecting multiple virtual machines

Module 4 – Linux Bridges and Advanced Connectivity

1. Linux bridge architecture and Layer 2 forwarding
2. Creating and managing bridge interfaces
3. Integrating physical interfaces, bridges and virtual machine interfaces
4. Bridge-based connectivity versus NAT-based virtual networks
5. VLAN-aware bridges and traffic forwarding concepts
6. Integrating virtual machines with external Layer 2 networks
7. Bridge configuration persistence and operational validation
8. Common bridge connectivity problems and diagnostic procedures
9. Practical lab: implementing a bridge-based network for virtual machines

Module 5 – VLANs and Network Segmentation

1. VLAN fundamentals, IEEE 802.1Q tagging and traffic separation
2. Access ports, trunk ports and tagged network interfaces
3. Creating and managing VLAN interfaces in Oracle Linux
4. Configuring VLAN-aware bridges and virtual machine connectivity
5. Mapping VLANs to virtual machine network interfaces
6. Designing separate networks for management, applications and infrastructure
7. Interoperability requirements between host interfaces and physical switches
8. Troubleshooting VLAN tagging, trunk configuration and connectivity
9. Practical lab: implementing isolated virtual machine networks using VLANs

Module 6 – Network Bonding and High Availability

1. Network bonding architecture and operational principles
2. Bonding modes and their characteristics
3. Configuring bonding interfaces using NetworkManager
4. Integrating bonding with bridges and virtual networks
5. Link redundancy, failover and recovery validation
6. Monitoring bond status and identifying interface failures
7. Switch configuration dependencies and aggregation considerations
8. Availability, performance and operational limitations of bonding
9. Practical lab: configuring redundant network connectivity where supported by the environment

Module 7 – Routing, Diagnostics and Network Troubleshooting

1. Host and guest routing tables and packet forwarding
2. Diagnosing default gateway, route and subnet configuration issues
3. DNS resolution and connectivity validation
4. Using ping, tracepath, ss, ip route and related diagnostic utilities
5. Packet capture and traffic inspection with tcpdump
6. Analyzing ARP, ICMP, TCP and UDP communication
7. Diagnosing bridge, VLAN, NAT and virtual interface problems
8. Investigating packet loss, interface errors and connectivity interruptions
9. Practical lab: troubleshooting a multi-layer virtual networking failure

Module 8 – Performance, Monitoring and Integrated Lab

1. Network interface statistics, drops, errors and traffic utilization
2. Identifying latency, throughput limitations and network contention
3. Evaluating network performance between virtual machines and external endpoints
4. Monitoring interface status and validating configuration consistency
5. Applying structured troubleshooting and root cause analysis
6. Implementing a multi-network virtualized topology
7. Integrating bridges, VLANs, NAT and routing according to the lab scenario
8. Validating connectivity, isolation and redundancy where supported
9. Documenting the final network topology, configurations and test results