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Calculating DRAM and Flash on ISR 4351 for IOS XE Everest 16.4.1

mlenco
Level 1
Level 1

Cisco 4351 ISR.

The 4351 has visually confirmed two DIMMS, a pair of 2GB. I can't tell which is the onboard flash or an MMC of 8 or 16 GB.

However, when I calculate the DRAM from show ver I get 1687137K/6147k, add it up, 1,693,284K. Multiply that by 0.0009765625MB and you get 1653.59765625 MB. Taking it on step further, only 1.6 GB.

3207167K of flash memory at bootflash, converting to MB, 3131 MB or 3.05 GB.

4194304k bytes of physical memory.

The numbers don't match up and I can't determine if I can upgrade to IOS XE Everest 16.4.1 with a minimum of 4 GB of DDR3 up to 16GB and 4GB of flash storage.

Is there a document out there that can clearly explain this?

1 Reply 1

Philip D'Ath
VIP Alumni
VIP Alumni

The 4351 ships with a minimum of 4GB of RAM and 8GB of flash.  You can't get less, so you are fine on that count.

http://www.cisco.com/c/en/us/products/routers/4000-series-integrated-services-routers-isr/models-comparison.html

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