Systems Network Architecture Protocol Suite
The Systems Network Architecture (SNA) suite of protocols is described in the following table.
RH |
Request/Response Header. This protocol carries the SNA Request/Response Units as its payload. |
RU |
Request/Response Unit. An SNA client uses this protocol to communicate with an SNA server. |
TH |
Transmission Header. This protocol runs on a data link layer and serves as the transmission layer for an SNA Path Information Unit. |
XID |
Exchange Station Identification. An SNA node uses this protocol to check whether its peer SNA node is ready for communication and to exchange its station details with it. |