What are the two parts of memory mean, please?

May 17, 2007 5 Replies

Hello. The output "show version" of command includes a line about the system memory amount. The format looks like "12345 K / 123 K". I know the total size of memory consists of the two numbers on both sides, but what are represented by them respectively, please? Thank you.



Not true.

Its main memory and I/O buffer memory. You can change the split with the 'memory-size iomem xx' command on the platforms that have unified memory and I/O memory. More of the higher-end platforms tend to split them off to different SIMMs altogether, so you can't change the split on them.

Flash is shown on a different line.

main-memory/IO-memory

The memory is partitioned on startup and the amounts can be changed in the config.

The I/O mem is I understand used for interface packet buffers and possibly other purposes. I understand that these buffers are allocated from the I/O pool at system startup too.

Hello, Mr.Roberson.

For example, .=2E. ... Cisco 2621 (MPC860) processor (revision 0x101) with 27648K/5120K bytes of memory .=2E. ...

I don't think the 5120K is the size of flash. I know the total size of RAM is 27648K + 5120K =3D 32768K, but I have no idea about what the 27648K and 5120K mean. It seems that the whole RAM is divided into two parts for different use.

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