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IBM-AUSTRIA - PC-HW-Support 30 Aug 1999 |
Operation Modes
Operation Modes
| Mode |
Description. |
| | |
| Traditional Adapter |
Used when you expect little or no |
| |
cross-subnetwork traffic. |
| | |
| VNET Switch |
Used when you need to build subnets |
| |
to provide cross-segment traffic. |
Traditional Adapter Mode:
When the adapter is operating in this mode, the drivers for the adapter register each individual LAN
segment with the network operating system (NOS) as a unique subnet. The NOS views the adapter as four separate adapters. Each
network segment must be configured with a unique network number.
NOTE:
- Do not externally join (using bridges, switches, or concentrators) ports of adapters.
- You can configure as many nodes as you need, the adapter places no limit on the number of nodes per port.
- Ensure that each port is bound to the protocol with a unique network number.
VNET Switch Mode
NOTE:
- Do not externally join (using briges, switches, or concentrators) ports of adapters that
compromise a VNET.
- Nodes can be configured as needed, the adapter places no limit on the number of nodes per port.
- Ensure that all ports in a VNET are bound to the protocol (by way of VNET) with a common network number.
When the adapter is operating in this mode, multiple LAN segments are registered with the NOS as a single
subnet, called a VNET . VNETs are multisegment virtual subnets.
VNETs are made possible by a layer of virtual network software that binds to multiple instances of the adapter LAN
driver and register them with the NOS as a single subnet. Multiple PeerMaster adapters may be configured to interoperate in various ways, such as:
- Traditional subnets
- One large VNET
- Multiple independent VNETs
- Any combination of VNETs and traditional subnets
All physical segments within a VNET are configured to the same network number. Cross-segment traffic within a VNET
is switched by the adapter instead of by the server, allowing the server to be more productive.
External internetworking devices are not required to provide communication between segments with a VNET.
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