PIX 501 Memory Usage

[QCumber]

Hi there,

Can someone please tell me how the memory in a PIX 501 works?

My 501 typically runs with 4k of free memory but this often falls to 0 bytes free. We have been experincing slow internet access and occasionally complete loss of access. Rebooting the PIX seems to cure this.

The config of the PIX is pretty straight forward, with 4 outbound and 10 inbound filtering rules. The PIX is configured for VPN access too, but we never have more than 2 concurrent connections.

I've turned all the logging and PDM history functions off but this doesn't appear to help.

Is there anything else I can do to free up memory on the PIX? Will deleting items from the flash help?

The current contents of flash are as follows :

flash file system: version:2 magic:0x12345679
file 0: origin: 0 length:1540152
file 1: origin: 1572864 length:5802
file 2: origin: 1703936 length:1926
file 3: origin: 1835008 length:4539600
file 4: origin: 7864320 length:280

Which of these is the "live" file, and can I delete any of the others?

Thanks in advance,

Simon.

 

[QCumber]

No one has any info on this.....?