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Posted by Canuck on December 14, 2005, 11:42 am
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To remember that the IOS is in Flash just think of the flash updates.
The config is stored in NVRAM and can be changed ( copy run start ) and
erased ( erase start followed by a reload to reboot ).
There are plenty of good sites out there to help you with your CCNA quest
( I am prepping for it as well ) and here is one excellent site that I
frequent: http://www.techexams.net lots of resources and very knowledgable
folks there.
C
>
> Hi,
>
> You have 24MB of DRAM here (22528K/2048K)
>
> You have 8MB of flash (8192K)
>
> and you have the 32K of NVRAM
>
> all 3 are seperate
>
> DRAM memory chips (as you see in a PC)
> FLASH chip (a bit, like a flash card from a camera for example)
> NVRAM (a programmable EPROM chip (much like the BIOS in a PC) or it could
> also share the FLASH chip.
>
> IOS image in FLASH
> congig in NVRAM
>
>
>
>
> -----
>
>
> *****************************************************
> *** Resources for certified network professionals ***
> *** http://www.networkcertification.co.uk ***
> *****************************************************
>
> JJ wrote:
>> Hi there I am studying for my CCNA but am having trouble with some
>> practice questions to do with the output of the sh ver command. More
>> specifically what is DRAM and what is NVRAM in the output below, any
>> help would be much appreciated. Some books state that the 22528K/2048K
>> bytes of memory below is DRAM? and the 8192K bytes of processor board
>> System flash is NVRAM is that correct?
>> _______________________________________________________________
>> System image file is "flash:c2600-i-mz[1].122-1.bin"
>>
>>
>> cisco 2610 (MPC860) processor (revision 0x202) with 22528K/2048K bytes
>> of memory
>> .
>> Processor board ID JAB03110J2M (2158775703)
>> M860 processor: part number 0, mask 49
>> Bridging software.
>> X.25 software, Version 3.0.0.
>> 1 Ethernet/IEEE 802.3 interface(s)
>> 1 Serial network interface(s)
>> 32K bytes of non-volatile configuration memory.
>> 8192K bytes of processor board System flash (Read/Write)
>>
>>
>> Configuration register is 0x2102
>>
>
> --
>
> -----
>
>
> *****************************************************
> *** Resources for certified network professionals ***
> *** http://www.networkcertification.co.uk ***
> *****************************************************
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