Troubleshooting
Diagnostic Flowcharts
Flowchart 1: Network Level Loopback Test
Figure 4-1
1
A
Execute: ping to remote host
B | ping | yes |
|
|
| Stop |
| ||
| successful |
|
| |
| ? |
|
|
|
| no |
|
|
|
C | Network | yes | 3 |
|
| unreachable |
|
| |
| ? |
|
|
|
| no |
|
|
|
D | Command | yes | 2,3,4,5 |
|
|
|
| ||
| hangs |
| 6 & 7 |
|
| ? |
|
|
|
| no |
|
|
|
E |
| yes | F |
|
Unknown |
|
| ||
| Correct BIND, YP or |
| ||
| host |
| /etc/hosts configuration | 1 |
| ? |
|
|
|
| no |
|
|
|
G |
|
| H |
|
No route | yes | Add route |
| |
| to host |
| table entry |
|
| ? |
|
|
|
| no |
|
|
|
| Call HP |
|
|
|
58 | Chapter 4 |