
Chapter 9
Troubleshooting Overview
9-11
Refer to the Solstice SyMON User’s Guide, part number 802-5355, for starting and
operating instructions.
9.4
Specific Problems and Solutions
9.4.1
Failure of Network Communications
Description of the Problem
The system cannot communicate with a network if the system and the network hub
are not set in the same way for the Ethernet Link Integrity Test. This problem
particularly applies to 10BASE-T network hubs, where the Ethernet Link Integrity
Test is optional. This is not a problem for 100BASE-T networks, where the test is
enabled by default.
If you connect the system to a network and the network does not respond, use the
OpenBoot command
watch-net-all
to display conditions for all network
connections:
For SBus Ethernet cards, the test can be enabled or disabled with a hardware jumper,
which you must set manually. For the TPE and MII onboard ports on the I/O+
board, the link test is enabled or disabled through software, as shown below.
Note –
The TPE and MII ports share some circuitry so do not try to use the two
ports at the same time.
Note –
Some hub designs do not use a software command to enable/disable the
test, but instead permanently enable (or disable) the test through a hardware jumper.
Refer to the hub installation or user manual for details of how the test is
implemented.
ok watch-net-all
Summary of Contents for 5500
Page 12: ...xii Sun Enterprise 6500 5500 4500 Systems Reference Manual April 1998 ...
Page 20: ...xx Sun Enterprise 6500 5500 4500 Systems Reference Manual April 1998 ...
Page 89: ...Chapter 4 I O Boards and Components 4 31 FIGURE 4 27 PCI Card Removal Catch mechanism ...
Page 94: ...4 36 Sun Enterprise 6500 5500 4500 Systems Reference Manual April 1998 ...
Page 128: ...7 14 Sun Enterprise 6500 5500 4500 Systems Reference Manual April 1998 ...
Page 172: ...11 10 Sun Enterprise 6500 5500 4500 Systems Reference Manual April 1998 ...
Page 184: ...12 12 Sun Enterprise 6500 5500 4500 Systems Reference Manual April 1998 ...
Page 208: ...B 20 Sun Enterprise 6500 5500 4500 Systems Reference Manual April 1998 ...
Page 272: ...F 24 Sun Enterprise 6500 5500 4500 Systems Reference Manual April 1998 ...
Page 290: ...G 18 Sun Enterprise 6500 5500 4500 Systems Reference Manual April 1998 ...