Vsphere Standard switches and Distributed Switches Flashcards
What is a vSphere standard switch and what does it provide?
A vSphere standard switch is a virtual switch that provides virtual networking for an ESXi host and its virtual machines
What types of traffic can a VMkernel port manage?
A VMkernel port manages ESXi system traffic, including vSphere vMotion, vSAN, Fault Tolerance, Replication, and communication between vCenter Server and ESXi hosts.
What are the benefits of isolating networks using standard switches?
Isolating networks can improve network performance, provide dedicated bandwidth to each network, and prevent unauthorized monitoring or network interference.
What is the downside of having separate standard switches?
Each standard switch requires its own physical NICs. This can be costly and the ESXi host must have enough physical NICs to support the configuration.
What is a vSphere Distributed Switch and what benefits does it provide?
A vSphere Distributed Switch is a virtual switch owned and managed by vCenter Server, providing virtual networking for all ESXi hosts in a data center. Benefits include consistent network configuration for migrating virtual machines and centralized control for administering and monitoring virtual networks.
What is NetFlow and what is its purpose?
NetFlow is a network analysis tool used for monitoring the network and viewing VM traffic that flows through a distributed switch. It’s used for detecting potential security risks and determining the source of network security attacks.
What switch can perform netflow?
Distributed switch
What is port mirroring and what is its purpose?
Port mirroring is a method that duplicates network packets from a source port to a destination port for network monitoring. It’s used by network administrators to analyze network packets when troubleshooting network problems.
What type of switch does Port mirroring?
Distributed Switch
What is the purpose of Network I/O Control?
Network I/O Control is used to allocate network bandwidth to business-critical applications. It helps to resolve situations where different types of traffic, including virtual machine traffic, compete for network bandwidth.
What kind of switch can do Network I/O Control?
Distributed Switch
