Cisco 7600 SIP 200 Hardware Installation Guide - Page 162

Troubleshooting Line Card States

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Troubleshooting Chapter 7 Troubleshooting the Installation Problem Line Card in ROM monitor SCP Download Failures Solution • Linecards have a ROMMON variable DL_DISABLE depending on which line card auto boots or remains in ROMMON waiting for manual boot. If DL_DISABLE is set to 0, line card does not boot automatically but waits for the user to manually boot with respective line card image (from line card console). Line card auto boots only if DL_DISABLE=1. When DL_DISABLE=0 and line card doe not initialize, SCP Keepalive Failure messages appear on RP console. • A line card is reset by the SP with messages that SCP download failed or module reloaded during reset. This occurs at the time of bootup with a heavy configuration and a many line cards. Execute the debug cwan oir command to check the RP status. When a line card sends a Find Master to the RP, some of the messages are sent to SP to confirm if the module is online. If the message fails to reach the SP, then SP resets the module with message that SCP download has failed. If the line card, does not receive the response in the time, the line card resets itself. • Reload the line card and connect the LC console and check the status. If there is a problem with ROMMON download of the image from the SP, then the ROMMON of the line card should then be upgraded to the latest version. If a bay crashes, collect the stack trace to identify problem. Troubleshooting Line Card States Table 7-3 provides solutions for troubleshooting line card issues. Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide 7-6 OL-5052-14

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7-6
Cisco 7600 Series Router SIP, SSC, and SPA Hardware Installation Guide
OL-5052-14
Chapter 7
Troubleshooting the Installation
Troubleshooting
Troubleshooting Line Card States
Table 7-3
provides solutions for troubleshooting line card issues.
Line Card in ROM monitor
•
Linecards have a ROMMON variable
DL_DISABLE
depending on which line card
auto boots or remains in ROMMON waiting
for manual boot. If
DL_DISABLE
is set to 0,
line card does not boot automatically but
waits for the user to manually boot with
respective line card image (from line card
console). Line card auto boots only if
DL_DISABLE
=1. When
DL_DISABLE
=0
and line card doe not initialize, SCP
Keepalive Failure messages appear on RP
console.
SCP Download Failures
•
A line card is reset by the SP with messages
that SCP download failed or module reloaded
during reset. This occurs at the time of bootup
with a heavy configuration and a many line
cards. Execute the
debug cwan oir
command
to
check the RP status. When a line card sends
a Find Master to the RP, some of the messages
are sent to SP to confirm if the module is
online. If the message fails to reach the SP,
then SP resets the module with message that
SCP download has failed. If the line card,
does not receive the response in the time, the
line card resets itself.
•
Reload the line card and connect the LC
console and check the status. If there is a
problem with ROMMON download of the
image from the SP, then the ROMMON of the
line card should then be upgraded to the latest
version. If a bay crashes, collect the stack
trace to identify problem.
Problem
Solution