This new abstraction is called dvuplinks that gets defined during the creation of the VDS. VDS has a new abstraction for the physical Ethernet network adapters (vmnics) on each host. Host Uplink Connections (vmnics) and dvuplink parameter In this section an overview of key VDS parameters is provided. All centrally configured network policies on VDS get pushed down to the host automatically when the host gets added to the distributed switch. As opposed to configuring vSphere standard switches (VSS) on individual hosts, administrators can configure and manage one single vSphere distributed switch.
VDS simplifies the challenges of the configuration process by providing one single pane of glass to perform virtual network management tasks.
As the configuration of virtual networking goes hand in hand with physical network configuration, this section will cover both the VDS and Physical switch parameters. These are some key parameters that vSphere and network administrators have to take into account while designing VMware virtual networking. It can be configured manually or it can be obtained from a DHCP server.Important virtual and physical switch parametersīefore diving into the different design options around the example deployment, let’s take a look at the VDS (virtual) and physical network switch parameters that should be considered in all these design options. In contrast to MAC address, an IP address is a logical address. 10.0.0.0), while the second part of the address identifies the host device (e.g. 10.0.50.1). The first part of the address represents the network the device is on (e.g. For example, in order to access the Internet, your computer will need to have an IP address assigned (usually obtained by your router from the ISP).Īn IP address is usually written in the form of four decimal numbers seperated by periods (e.g. Each device that wants to communicate with other devices on a TCP/IP network needs to have an IP address configured. You should see your MAC address referred to as HWaddress.Īn IP address is a 32-bit number that identifies a host on a network. If you are using Linux, type the ifconfig command. Type the ipconfig/all command and you should see a field called Physical Address under the Ethernet adapter settings: If you are using Windows, start the Command Prompt (Start – Programs – Accessories – Command Prompt).
For example, consider the following MAC address: D8-D3-85-EB-12-E3Įvery hexadecimal character represents 4 bits, so the first six hexadecimal characters represent the vendor ( Hewlett Packard in this case). MAC addresses are usually written in the form of 12 hexadecimal digits. The manufacturer then assigns a unique value for the last 3 bytes, which ensures that every MAC address is globaly unique. Manufacturers agree to give all NICs a MAC address that begins with the assigned OUI.
Practice for best mac address code#
It is a hardware address, which means that it is stored in the firmware of the network card.Įvery network card manufacturer gets a universally unique 3-byte code called the Organizationally Unique Identifier (OUI). A Media Access Control (MAC) address is a 48-bit (6 bytes) address that is used for communication between two hosts in an Ethernet environment.