show version output on router

Answered Question
Aug 2nd, 2009
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Hi every body!


I have few questions about the output of " show version" command.

Show version command displays a lot of information.

I am interested in following :

The " show version " command gives info about:

Ram

nvram

flash


For ram, 354304k/38912k, book says the sum of these two gives the total amount available. Is the total size of ram or free ram available?


For nvram 191k bytes nvram? is the total size of nvram or available memory in nvram ?


For flash, 125440k bytes of ATA copact flash, is it total size or free memory available in flash ?


Thanks and have a nice weekend!

Correct Answer by Jerry Ye about 7 years 9 months ago

To find out how much available flash, you can use dir or show flash:. Here is an example:


R1#dir

Directory of flash:/


1 -rw- 53139536 Jun 26 2009 18:52:30 +00:00 c2800nm-adventerprisek9-mz.124-15.T9.bin


256471040 bytes total (203329536 bytes free)


To find out how much available, you can use the show memory command. Here is an example:


R1#sh mem

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

Processor 46C2C990 142423664 22430288 119993376 118026688 118846512



HTH,

jerry

Correct Answer by Richard Burts about 7 years 9 months ago

for Ram, nvram, and flash the output in show version gives the total amount of memory of the various types. There are ways to find available memory for Ram and flash, but not from the show version command.


HTH


Rick

Correct Answer by Lucien Avramov about 7 years 9 months ago

Cisco processor (revision ) with

K/K bytes of memory.


Processor board ID


CPU at Mhz, Implementation , Rev ,

KB Cache




Use the reference guide for more explanation:

http://www.cisco.com/en/US/docs/ios/fundamentals/command/reference/cf_s2.html#wp1466984


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Correct Answer
Richard Burts Sun, 08/02/2009 - 13:00
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for Ram, nvram, and flash the output in show version gives the total amount of memory of the various types. There are ways to find available memory for Ram and flash, but not from the show version command.


HTH


Rick

sarahr202 Sun, 08/02/2009 - 15:30
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Hi Rick.

Thanks for your reply.





"There are ways to find available memory for Ram and flash, but not from the show version command".




Could you please elaborate on those methods ?



Thanks a lot.

Correct Answer
Jerry Ye Sun, 08/02/2009 - 18:33
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  • Cisco Employee,

To find out how much available flash, you can use dir or show flash:. Here is an example:


R1#dir

Directory of flash:/


1 -rw- 53139536 Jun 26 2009 18:52:30 +00:00 c2800nm-adventerprisek9-mz.124-15.T9.bin


256471040 bytes total (203329536 bytes free)


To find out how much available, you can use the show memory command. Here is an example:


R1#sh mem

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

Processor 46C2C990 142423664 22430288 119993376 118026688 118846512



HTH,

jerry

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