
16-14 Troubleshooting startup problems
Bootup problems
Standard 1.0 Modular Option EC Installation and Maintenance Guide November 1999
Only one node comes up. Perform the system bus checks. Follow “Performing system
bus diagnostics” on page 16-31.
The logon screen appears, but
link status is not InService.
Refer to “AML problems” on page 17-7.
One node will not come up. Perform the BootROM diagnostic check procedure for the
node.
The hexadecimal display on
Enhanced MMP40 card shows
“B.”
This indicates that the node is in-service standby. This is a
minor software error. Contact your Nortel Networks support
organization.
The hexadecimal display on
Enhanced MMP40 card shows
“C.”
This indicates that the node is out of service. Enable the node
from the MMI as described in the
System Administration Guide
(NTP 555-7001-30x).
The hexadecimal display on
Enhanced MMP40 card shows
“D.”
This indicates in-service trouble.
While the Enhanced MMP40 card is still healthy, a component
such as a VP card or a disk may be faulty. Check the VP cards
for that node, use “Troubleshooting stage 3 bootup failure—
disk subsystem check” on page 16-26 and “Troubleshooting
stage 4 bootup failure” on page 16-27, and refer to Chapter 19,
“Common disk subsystem problems.”
The hexadecimal display on the
Enhanced MMP40 card
(blinking dot during states “1”
and later) has stopped blinking.
This indicates a potential software problem or faulty display.
Note the state at which the dot stopped blinking, and whether
the system is running normally. Reboot the system and
observe the display. If the problem persists, contact your Nortel
Networks support organization.
The hexadecimal display on
Enhanced MMP40 card flashes
continuously.
This indicates a faulty Enhanced MMP40 card.
1. Note the state at which the display began flashing.
2. Replace the Enhanced MMP40 card.
The hexadecimal display on
Enhanced MMP40 card returns
to .0 state.
The system has detected an unrecoverable hardware fault and
is attempting to restart the node.
If the system is unable to reboot the node successfully, note the
display immediately before the state reverts to .0, and contact
your Nortel Networks support organization.
The hexadecimal display on
Enhanced MMP40 card stops
at a particular bootup state.
Take note of the state at which the display stopped, and reboot
the system. If the problem persists, call your Nortel Networks
support organization.
Symptom Possible causes and actions
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