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C2821 low i/o memory allocation

Hello everybody,

I had strange I/O memory issue i wanted to discuss with you guys.

Basically I have two C2821 all same hardware, configuration and IOS except one is with 256MB DRAM, and other one is with 1GB DRAM. Memory stats are attached.

I have no clue about:

- why free i/o memory is so low onto C2821 with 1GB DRAM?

- total i/o memory is the same on both routers; shouldn't it be a percentage of the total DRAM memory?

Actually there was problem with generating accounting RADIUS requests/none were coming out from the one with 1GB DRAM/ and after increasing i/o memory i.e. "memory-size iomem 5" messages started to come out.

Any clues will be appreciated.

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