NonStop S-Series Server Description Manual (G06.27+)

Principles of System Operation

HP NonStop S-Series Server Description Manual—520331-004

2-16

Sequence for Responses to Incoming Requests

Figure 2-8 shows the sequence for sending a response back to the sending ServerNet

device after this ServerNet device has received and taken action on the received

request. In the case of a write request, the action would have been to write the data to

a buffer, as described in the preceding topic. In the case of a read request, the action is

part of the response, as described here.

1. If the incoming request was a read request, the AVT hardware reads from the

device’s buffer up to 64 bytes to include in a read response packet.

2. The AVT hardware creates the read or write response packet and, through the

processor ServerNet interface, sends the packet to the requesting device through

the ServerNet hardware.