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System Initialization and Acceptance Testing (Normal Operation)
4.7 Operating System Bootstrap
• A remote console server that generates COUNTERS messages in response
to REQ_COUNTERS messages, unsolicited SYSTEM_ID messages every
8 to 12 minutes, and solicited SYSTEM_ID messages in response to
REQUEST_ID messages, as well as recognition of BOOT messages.
• A loopback server that responds to Ethernet loopback messages by echoing
the message to the requester.
• An IEEE 802.2 responder that replies to both XID and TEST messages.
During network bootstrap operation, the KA681/KA691/KA692/KA694 complies
with the requirements defined in the "NI Node Architecture Specification"
for a primitive node. The firmware listens only to MOP "Load/Dump", MOP
"Remote Console", Ethernet "Loopback Assistance", and IEEE 802.3 XID/TEST
messages (listed in Table 4–7) directed to the Ethernet physical address of the
node. All other Ethernet protocols are filtered by the network device driver.
The MOP functions and message types, that are supported by the KA681
/KA691/KA692/KA694 are summarized in Tables 4–5 and 4–7.
4–34 System Initialization and Acceptance Testing (Normal Operation)