Ericsson EDACS Data Advantage Series, Installation And Maintenance Manual, Page: 43 / 48

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ICMP MESSAGES RETURNED BY DATA ADVANTAGE
ICMP TYPE ICMP Code Reason
Echo Reply N/A Echo Request received
Destination
Unreachable Network
Unreachable 1. No message can reach any radio on the EDACS network.
See the activity log for more information.
Destination
Unreachable Host Unreachable 1. A message to a specific radio failed. See the activity log for
more information.
Destination
Unreachable Protocol
Unreachable 1. Attempt to send an ICMP message other than an Echo
Request to an RDT.
Destination
Unreachable Fragmentation
Needed and DF set 1. Message exceeds 512 bytes.
Source Quench N/A 1. Maximum Number of messages exceeded on a WNI board.
2. All channels on a Site are busy (4 attempts/msg).
3. An Data Advantage board is out of memory.
4. Message rate too high for CAP.
Time Exceeded for a
Datagram Fragment
reassembly time
exceeded 1. Maximum message time-out exceeded for a message.
Timestamp Reply N/A 1. Timestamp Request received.
Information Reply N/A 1. Information Request received.
Address Mask Reply N/A 1. Address Mask Request received.
FORCING A HARD DISK REFORMAT
The Data Advantage VME Chassis will only reformat the Hard Drive if it detects a problem This procedure can
be used to force Data Advantage to reformat its Hard Drive.
1. Verify that the Data Advantage Installation disks are available. If they aren’t, copy the files
/LOADER.SX, /loads/DACAP.SX and /loads/WNI.SX to three floppies. The Data Advantage User’s
Manual contains the commands used to copy files to the floppy.
2. Verify that the current SYSTEM.TXT file is available on floppy. If it isn’t, copy the file
/cnfg/SYSTEM.TXT to a floppy.
3. Save other files such as /etc/passwd and activity logs to floppies as desired.
4. Login and remove the LOADER.SX file by entering “rm LOADER.SX”.
5. Reboot the Data Advantage. The reboot will fail and ask if you want to attempt to reboot again. Enter
“n” to bring up the diagnostic shell.
6. Enter “format”. It will warn that the command will destroy all data on the hard drive twice. Enter “y” to
continue each time. It will ask if a low level format should be performed. Enter “n”.
7. When the prompt returns, insert the Loader Disk into the floppy drive and reboot the Data Advantage
VME Chassis. Reload the SX files and the SYSTEM.TXT file as prompted.
8. After the Data Advantage VME Chassis have finished rebooting, restore other files as desired. The
default root, user, and guest passwords must be used until the /etc/passwd file is restored.