Patent ID: 7039693

Claim:
A method of validating a channel-to-channel (CTC) connection between a first channel and a second channel in a computing environment, wherein a CTC control unit (CU) function is provided within either channel upon initialization of the CTC connection and can switch channels with re-initialization of the CTC connection, said method comprising: obtaining a first node element descriptor (NED) of one channel of a first channel and a second channel and a first node element qualifier (NEQ) of the other channel of the first channel and the second channel with initialization of a CTC connection therebetween; upon re-initialization of the CTC connection, obtaining a second NED of one channel of the first channel and the second channel and a second NEQ of the other channel of the first channel and the second channel; and validating the re-initialized CTC connection if the first NED matches the second NED and the first NEQ matches the second NEQ, or if the first NED matches the second NEO and the first NEO matches the second NED.