A Network 8000 GCM / LCM displays the error Insufficient System RAM and can no longer be accessed via the front panel display or via the serial ports with XPSI software.

Issue

A GCM / LCM stops working and displays the error message "Insufficient System RAM".  It no longer responds to information requests via the front panel keyboard/display nor via XPSI software connected on either of the available serial ports.

A power cycle restores functionality but only for a limited amount of time (ie: hours or days).

Product Line

TAC I/A Series

Environment

Network 8000

GCM-84000 series
GCM-86000 series

LCM-84000 series
LCM-85000 series
LCM-88000 series

Cause

Free system ram drops below minimum requirements:
Any GCM with sys ram below 18k
Any LCM with sys ram below 10k

Resolution

The amount of free system ram must be kept above minimum requirements.

Use Tech Bulletin 95-33 for troubleshooting the GCM / LCM.  It is a comprehensive guide providing both hardware and software suggestions that will increase free system ram.