- #1. What is decoupling? …
- #2. What is Control Plane? …
- #3. What is Data Plane? …
- #4. What is the Management Plane? …
- #5. What is Logical Switching? …
- #6. What are NSX Gateway Services? …
- #7. What is Logical Routing? …
- #8. What is East-West Traffic in Logical Routing?
I have covered the three VLAN Tagging Techniques to a greater detail with Advantages and disadvantages, click on the following links:
By default, the virtual machine log file (vmware.log) is rotated as a result of the virtual machine’s Power On or Power Off operation. To configure log rotation based on file size, include this option in the virtual machine’s .vmx file: log.rotateSize = This example specifies the vmware.log file to be rotated when its size reaches 182 kilobytes:
By default, ESX 3.0 keeps six rotations of the vmware.log file ( vmware.log, vmware-1.log, vmware-2.log, etc).
To specify an alternative location or filename for virtual machine logging, use the log.fileName option in the virtual machine’s .vmx file.
Here in this post, I will talking about the vCenter Server and How do you view the vCenter Log files. So Lets Start to learn about the vCenter Server Logs.
The vCenter Server installed on the Windows server 2008 and above Operating system the logs would be stored in the following path: C:’ProgramData’VMware’VMware VirtualCenter’Logs’
The default log file location for the vCenter Server differs with the version of vCenter Server installed and also depends on the operating system you chose to install. so here is the list of the Log file locations for different vCenter server versions on a different operating system.
When vCenter Server 5.x and earlier versions were installed on operating systems like Windows XP, 2000, 2003 the default log file location is:
When vCenter Server 5.x and earlier versions of vCenter is installed on Windows Vista, 7,2008 then the default log file location is:
When vCenter Server 5.x is deployed as a Virtual Appliance then the log file location is: /var/log/vmware/vpx/
When I looked at the vCenter Log files location I found a big list of logs each has its own significance that includes the log files like vpxd.log, vpxd-profiler.log, profiler.log and scoreboard.log, vpxd-alert.log, cim-diag.log, ls.log:, stats.log, sms.log, eam.log, catalina..log and localhost..log, jointool.log, manager..log, host-manager..log. Out of the above mentioned log files the very two critical log files are the vpxd.log and vpxd-profiler.log files which are useful for troubleshooting the issues that are related to the configuration and performance.What is vpxd.log? vpxd is vCenter service which runs on the Windows Server where the vCenter Server is installed. The logs for the vpxd service are stored in the default log file location path. When you locate the log files folder you will see so many vpxd files with a number appended to the log file. This is generally happens with log rotation, which means that whenever the log files reaches 5MB or when the vpxd service is restarted then the log file would be automatically archived. But you can only see 2 recent log files from the vSphere client as shown in the below screenshot. The most recent log file as per the screenshot is vpxd-720.log which is the new file and the old log file is vpxd-719.log. By default in the 10 vpxd-###.log files stored in the vCenter log file location directory which can altered and changed. What is vpxd-profiler.log file? The vpxd-profiler is mainly used to gather the performance-related information, which is useful for troubleshooting the performance related issues. Just like vpxd all the logs would be automatically archived when reaches 5 MB or when the services are restarted. You can navigate the two active logs from the vSphere client and it stores about 10 old logs by default in the vCenter server log file location.
What are the different log files you find the vCenter Server and their usage?
Windows Server 2003 – C:’Documents and Settings’All Users’Application Data’VMware’VMware VirtualCenter’ Windows Server 2008/Windows Server 2008 R2 – C:’ProgramData’VMware’VMware VirtualCenter’
This Post is all about the vMotion. I hope I have covered the things like the definition of the vMotion, requirements for configuring the vMotion, failure scenario’s, things to look for troubleshooting the vMotion. Above all I did it in Questions and Answers style. I hope you like it.What is vMotion?
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Here the few Major differences between the switches (vSwitch & dvSwitch & Cisco N1K switches) that the vSphere 5.5 supports and their features and differences:Three Types of Virtual Switches are supported
vNetwork Standard Switch (vSS): The vSS is Created and managed on a per-host basis and it supports the basic features such as VLAN, NIC teaming, port security, etc.vNetwork Distributed Switch (vDS) The vDS is Created and managed at vSphere vCenter level and supports all the features of vNetwork Stand Switch (vSS) and more features like PVLAN, traffic management, NIOC, etc Cisco Nexus 1000v (N1K) The Cisco N1K is Created and managed by VSM and it supports the features that were typically available in Cisco hardware switches.Here is the list of features supported by these three switches:
NSX-T Networking Fundamentals
The main difference between VMware NSX-V and VMware NSX-T is that NSX-T is designed for use with non-vSphere environments, while NSX-V is designed specifically for vSphere environments. If you’re not using vSphere, then NSX-T is the obvious choice. If you are using vSphere, then it really depends on your specific needs and preferences.
VMware NSX is a software-defined networking solution that enables the creation of virtual networks in a VMware vSphere environment. NSX provides a complete set of networking and security features for virtualized workloads, including logical switches, routers, firewalls, and load balancers. NSX is deployed as a virtual appliance on each ESXi host in a vSphere environment and is managed through a vCenter Server instance.
A logical router is a software appliance in VMware NSX that provides routing services to virtual machines in a network. A logical router consists of a control plane and a data plane. The control plane manages the routing tables and handles the traffic forwarding between virtual machines. The data plane consists of a set of virtual switch ports that connect the logical router to the virtual machines in the network.
A Service Composer is a tool that allows administrators to quickly and easily create, modify, and delete network services for their VMware NSX environment. With Service Composer, administrators can create new services or modify existing ones without having to manually edit or create any configuration files. This makes it much easier to manage a complex VMware NSX environment.
The Edge Services Gateway is a key component of the VMware NSX platform. It provides a number of essential functions, including routing, firewall, VPN, and load balancing. The ESG is typically deployed at the edge of the network, where it can provide these services to the devices and users that are trying to connect to the network.
Are you a person willing to enhance your skills in IT? Are you a person with an engineering degree in computer application or electronics then logon to www.wisdomjobs.com. VMware NSX is the VMware SDN network virtualization and security platform that emerged from VMware after they acquired Nicina in 2012. The solution de-couples the network functions from the physical devices. NSX natively recreates the traditional network constructs in virtual space these constructs include posts, switches, routers, firewalls etc. It provides an aggregated system view and is the centralised network management component of NSX. So track down your career as Network Administrator, NSX Specialist, NSX Executive, NSX Engineer, Product Engineer and so on by looking into VMware job interview question and answers given.
VMware NSX Interview Questions And Answers
1. What’s Service Console?
Answer: The service console is developed primarily based au courant Redhat UNIX operating system OS, it’s accustomed manage the VMKernel
2. What’s vCenter Agent?
Answer: VC agent is associate degree agent put in on ESX server that permits communication between VC and ESX server. This Agent are put in on ESX/ESXi are done after you attempt to add the
3. What’s the employment of Virtual Machine Port Group?
Answer: Virtual Machine port cluster is employed by Virtual machine communication.
4. What is decoupling?
Answer: An important concept of network virtualization is the decoupling of software and the networking hardware. The software works independently of the networking hardware that physically interconnects the infrastructure. Any networking hardware that can inter-op with the software is always going to enhance the functionality, but it is not necessary. Remember that your throughput on the wire will be always limited by your network hardware performance.
5. What is Control Plane?
Answer
The decoupling of software and networking hardware allows you to control your network better because all the logic resides in the software. This control aspect of your network is called the control plane. The control plane provides the means to configure, monitor, troubleshoot, and also allow automation against the network.
6. What is Logical Switching?
Answer: NSX allows the ability to create L2 and L3 logical switching that enables workload isolation and separation of IP address space between logical networks. NSX can create logical broadcast domains in the virtual space that prevent the need to create any logical networks on the physical switches. This means you are no longer limited to 4096 physical broadcast domains (VLANs).
7. What is NSX Gateway Services?
Answer: The Edge gateway services interconnect your logical networks with your physical networks. This means a virtual machine connected to a logical network can send and receive traffic directly to your physical network through the gateway.
8. What is East-West Traffic in Logical Routing?
Answer
East-west traffic is traffic between virtual machines within a data center. In the current context, this typically will be traffic between logical switches in a VMware environment.
9. What is a Logical Firewall?
Answer: Logical firewalls are of two types: distributed firewall and Edge firewall. A distributed firewall is ideally deployed to protect any east-west traffic, while an Edge firewall protects any north-south traffic. A distributed logical firewall allows you to build rules based on attributes that include not just IP addresses and VLANs, but also virtual machine names and vCenter objects. The Edge gateway features a firewall service that can be used to impose security and access restrictions on north-south traffic.
10. What Is Vcenter Agent?
Answer :
VC agent is an agent installed on ESX server which enables communication between VC and ESX server. This Agent will be installed on ESX/ESXi will be done when you try to add the ESx host in Vcenter.
VMware NSX Interview Questions
1. What’s Service Console?2. What’s vCenter Agent?3. What’s the employment of Virtual Machine Port Group?4. What is decoupling?5. What is Control Plane?6. What is Logical Switching?7. What is NSX Gateway Services?8. What is East-West Traffic in Logical Routing?9. What is a Logical Firewall?10. What Is Vcenter Agent?
FAQ
What is Vxlan in NSX-T?
What is the difference between NSX-V and NSX-T?
What is NSX architecture?
