3-2
SilkWorm 2100 Reference
Diagnostics
3
Power On Self Tests (POSTs)
At initialization, boot PROM diagnostics verify CPU DRAM memory. In addition, the
following POSTs also execute.
Memory Test
Port Register Test
Central Memory Test
CMI Conn Test
CAM Test
Port Loopback Test
If a malfunction prohibits the switch from completing the boot process (fatal error), the
switch stops the boot process. If a switch boot failure occurs, the switch must be taken
offline for repair or replacement. Contact your switch supplier for technical support.
Error Messages
To analyze error messages, access the error message log via a telnet session. Note any
messages before removing power from the switch; error messages are stored in RAM and
are lost when power is removed. See Fabric OS, “Appendix C, Error Messages” for a
detailed description of each message.
Port Loopback Test
portLoopbackTest
Checks all switch main board
hardware. Frames transmitted are
looped back and received.
Run offline.
Cross Port Test
crossPortTest
Checks all switch paths. Frames
transmitted by port M are looped
back via external cable and received
at port N. Run offline or online.
Spin Silk Test
spinSilk
Checks all switch paths at the
maximum speed of 1 Gbps. Frames
transmitted by port M are looped
back via external cables and when
received by port N are sent again by
port M in an external loop.
Run offline.
SRAM Data Retention
Test
sramRetentionTest
Verifies that data written into ASIC
memories is retained. Runs offline.
CMem Data Retention
Test
ImCmRetentionTest
Verifies that data written into ASIC
SRAMs is retained. Runs offline.
Switch Online
switchEnable
Returns switch to online state.
Table 3-1
Diagnostic Tests for SilkWorm 2100 Switch (Continued)
Test
Command
Description
