POWER7 information

Configuring the Virtual I/O Server for the VSN capability

If you are using the Hardware Management Console (HMC) Version 7 Release 7.7.0, or later, you can use Virtual Station Interface (VSI) profiles with virtual Ethernet adapters in logical partitions and assign the Virtual Ethernet Port Aggregator (VEPA) switching mode to virtual Ethernet switches.

When you use the Virtual Ethernet Bridge (VEB) switching mode in virtual Ethernet switches, the traffic between logical partitions is not visible to the external switches. However, when you use the VEPA switching mode, the traffic between logical partitions is visible to the external switches. This visibility helps you to use features such as security that are supported by the advanced switching technology. Automated VSI discovery and configuration with the external Ethernet bridges simplifies the switch configuration for the virtual interfaces that are created with logical partitions. The profile-based VSI management policy definition provides flexibility during configuration and maximizes the benefits of automation.

The configuration requirements on the Virtual I/O Server (VIOS) to use the VSN capability follow:

Restriction: To use VSN capability, you cannot configure a shared Ethernet adapter to use link aggregation or an Etherchannel device as the physical adapter.

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Last updated: Thu, April 05, 2018