DLC (802.2) Link Service: SNA Server of Variable

The Registry variable that affects the DLC (802.2) link service is found in the following location:

HKEY_LOCAL_MACHINE
SYSTEM
CurrentControlSet
Services
DLCLinkServiceName
Parameters
ExtraParameters

This is the variable name and description:

FrameType:REG_DWORD:number

This variable specifies the type of frames for the DLC (802.2) link service to send over an Ethernet LAN. The variable need be set only if the LAN is Ethernet, not token ring, and only if the server communicates with remote host, peer, or downstream systems via routers (not MAC layer bridges).

If the server communicates over Ethernet via routers, check with the local network support staff to determine what type of frames the routers pass. The frames can be either standard 802.3 format or 802.2 packets prefixed by DIX headers using EtherType value 0x80D5.

Specify the number in FrameType as follows:

Value	Effect

0	Use the frame type specified for this adapter in the Registry entry for the DLC protocol stack: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services \DLC\Parameters\AdapterName\UseDixOverEthernet. The default for UseDixOverEthernet is 0, resulting in 802.3 format.
1	Use the frame type automatically determined by the DLC stack during XID exchange.
2	Use standard 802.3 format.
3	Use 802.2 packets prefixed by DIX headers using EtherType value 0x80D5.

If FrameType is not set, it defaults to 0, which means that the frame type is the one specified in UseDixOverEthernet, as described in the preceding table.