Departmental Switch Model DS-16B Hardware Reference Manual
Front Panel Diagnostics
If the memory tests OK, the front panel displays:
Related error messages: DIAG-MEMORY, DIAG-MEMSZ,
DIAG-MEMNULL
Port Register Test Pressing <Enter> while
Port Register Test is selected displays a
reminder to take the switch offline if it is not offline. If the message is
displayed, take the switch offline.
Pressing <Enter> starts the test, which checks the switch’s ASIC
registers. The ports tested are 0 to 15.
If the test is successful, the panel displays
RegTest: passed.
Related error messages: DIAG-REGERR, DIAG-REGERR_UNRST,
DIAG-BUS_TIMEOUT
Central Memory Test The centralMemoryTest verifies that the central memory in each
Loom ASIC is functioning correctly by checking the following:
• The built-in-self-repair (BISR) circuit in each Loom chip does not
report failure to repair bad cells (bisr test).
• The data cells can be uniquely written and read correctly (data
write/read test).
• The data in any one asic can be read from any other ASIC (loom
connection test).
• Bad parity can be detected and flagged in the error register and
interrupt posted (parity error test).
• Buffer number error can be detected and flagged in the error
register and interrupt posted (buffer number error test).
• Chip number error can be detected and flagged in the error
register and interrupt posted (chip number error test).
0x10199a10 len 13091456
ramTest: passed
Port Reg Test
RegTest: passed
