Identify vNetwork Standard Switch (vSS) capabilities
The vNetwork Standard Switch (vSS) otherwise known as a virtual switch (vSwitch) is a software construct implemented in the VMkernel. It provides networking connectivity for an ESXi host, directs network traffic between virtual machines and enables connectivity to external networks. A vSwitch allows virtual machines to communicate with one another using the same protocols that would be used over physical switches.
A vSwitch can mobilize multiple physical network adapters in order to combine the bandwidth and load balance the traffic among them. It can also be configured to handle physical NIC failover in the event that an interface is lost. A vSwitch has support for VLANs and traffic shaping (average bandwidth, peak bandwidth, and burst size) and implements security policies: promiscuous mode, MAC address changes, and forged transmits. It implements load balancing and failover policies and supports both the VMkernel and Virtual Machine port groups.
Important features of virtual switches include:
Virtual ports: The ports on a virtual switch provide logical connection points among virtual devices and between virtual and physical devices.
Uplink ports: Uplink ports are associated with physical adapters, providing a connection between the virtual network and the physical networks
Port groups: Port groups aggregate multiple ports under a common configuration and make it possible to specify that a given virtual machine should have a particular type of connectivity on every host.
Uplinks: Uplinks are the physical Ethernet adapters that serve as bridges between the virtual and physical network. The virtual ports connected to them are called uplink ports.
 |
physical network is a network of physical machines that are connected so that they can send data to and from each other.
A virtual network is a network of virtual machines running on a physical machine that are connected logically so that they can send data to and from one another. Virtual networks connect virtual machines.
A vSwitch configuration occurs at the host level.
The vSwitch is your basic "network virtualization" switch. When two or more virtual machines are connected to the same standard switch, network traffic between them is routed locally.
Each vSwitch is tied to a particular ESXi Server and each vSwitch is managed individually. If you wanted to make changes to a security policy or traffic shaping configuration across all vSwitches, you would have to do it individually.
vSphere Standard Switch Configuration Maximums
Total virtual network switch ports per host (VDS and VSS ports)
|
4096
|
Maximum active ports per host (VDS and VSS)
|
1016
|
Virtual network switch creation ports per standard switch
|
4088
|
Port groups per standard switch
|
256
|
Static port groups per vCenter
|
5000
|
Ephemeral port groups per vCenter
|
256
|
References:
|
No comments:
Post a Comment