Check Point SPLAT SNMPv3 memory monitoring
Basic implementation of memory monitoring using snmp can lead to false alarm. [ Expert@FW1]# free total used free shared buffers cached Mem: 8308232 8027236 280996 0 249776 5983656 -/+ buffers/cache: 1793804 6514428 Swap: 18347752 0 18347752 In the example above, the firewall is running (208772 actives connexions) The OS reports "8027236" of "8308232" used. However, we see that the 'free' + 'buffers' + 'cached' = " 280996 " + "249776" + "5983656" = "6514428", which is 'logically' free for applications to use, and will be handed out by the kernel appropriately. According to sk32206 : How to determine how much Free Memory is available on Linux/SecurePlatform systems ' Free Real Memory ' should be equal to - 'Free Real Memory' in output of 'cpstat -f memory