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Memory Problems on a 4000 Router


i have the following Problem:

My mangement says, that a certain router (Cisco 4000) has unsufficient SRAM.

If i do a "sh mem", i get the following output:

passau#sh mem

Head Total(b) Used(b) Free(b) Lowest(b) Largest(b)

Processor 620030 10354640 2828388 7526252 7335804 7370432

I/O 6000000 16777216 1524304 15252912 15243576 15252500

SRAM 1000 65536 65536 0 0 0

Processor memory

Address Bytes Prev. Next Ref PrevF NextF Alloc PC What

620030 1460 0 620610 1 1C6B30 List Elements

620610 2960 620030 6211CC

So SRAM has 0 Byte free - what to do ?

The Cisco-Outputinterpreter sees no Problem !

Isn´t SRAM a Part of the "normal" RAM ?

Since the Router has 32MB Ram it should be no Problem !

Please - Can anyone help ?


Re: Memory Problems on a 4000 Router

SRAM is static RAM. It's faster than normal main memory, and is overlayed over some of the main memory. Some of the speed critical parts of the system software are located in SRAM to increase performance. You can't really run out of SRAM, the remaining stuff will automatically be put in normal DRAM.

It is not upgradable.

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