Bay Networks 6300 Hardware Installation Manual page 67

Chapter 3 ROM Monitor Commands
When the Remote Annex 6300 begins to boot, it displays the load
server host's Internet address. If the unit does not boot successfully
after several attempts, it displays a boot attempt failed message; if the
unit has opened the boot file and an error occurs during the boot
process, it displays a boot error report on the console and returns to
the ROM Monitor. The boot error report can help determine the cause
of the boot failure (see Boot Error Report on page 4-11).
During a boot, the console may display four possible status symbols:
"." indicates received data blocks, "?" indicates unanswered requests,
"*" indicates transmission errors, and "! ~XXXX~" is a status word
from the Ethernet chip on the Annex indicating a gross problem with
the Ethernet connection (if this symbol appears in your boot
command display, contact technical support).
The status word "! ~XXXX~", where XXXX are four hexadecimal
digits, decodes as follows:
8000 = Command complete
4000 = Chip is busy
2000 = Command completed without error
1000 = Command aborted issuance of an ABORT command
800 = Late collision detected
400 = Carrier lost
200 = CTS lost
100 = DMA underrun
80 = Transmission deferred because link was busy
40 = Collision detected during interframe spacing (SQE/Heartbeat
detected)
20 = Excessive collisions
10 = Reserved
The lowest nibble (bits 3 to 0) are a count of collisions during this
transmission. For example:
~8802~ = Complete, Late collision, 2 collisions
~8841~ = Complete, Late Collision, SQE detected, 1 collision
Remote Annex 6300 Hardware Installation Guide 3-9