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Need some information for IOS upgrades

Answered Question
Jun 16th, 2010
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I can't seem to find a page where they'd put clearly the requirements for IOS upgrades. If I understood correctly, each Cisco device can upgrade to a higher IOS version, depending on the amount of DRAM and Flash installed. My first question is, are you able to say that to install IOS 12.4, you need X amound of DRAM and Y amount of Flash for any Cisco device? Or, does the memory requirement vary for each specific device? If it is the former, I can't a page that list those requirements. If it is the later, I can't easily find a page for each device that list the requirement for the updates.

Correct Answer by Kevin Brennan about 7 years 2 months ago

Hi Feng,


All of the requirements can be found in the Feature Navigator pages.


http://tools.cisco.com/ITDIT/CFN/jsp/index.jsp


HTH


Kevin

Correct Answer by Jerry Ye about 7 years 2 months ago

"are you able to say that to install IOS 12.4, you need X amound of DRAM  and Y amount of Flash for any Cisco device?"


No, you cannot just assume that across all the platforms. For example, for 12.4(24)T3 Advanced Enterprise Service


7200VXR NPE-G2 1024D/256F

7200VXR NPE-G1 512D/64F

3800 512D/128F

2800 256D/128F


All the memory information are listed in the software download page for their Flash and DRAM requirement.


HTH,

jerry

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Correct Answer
Jerry Ye Wed, 06/16/2010 - 20:14
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  • Cisco Employee,

"are you able to say that to install IOS 12.4, you need X amound of DRAM  and Y amount of Flash for any Cisco device?"


No, you cannot just assume that across all the platforms. For example, for 12.4(24)T3 Advanced Enterprise Service


7200VXR NPE-G2 1024D/256F

7200VXR NPE-G1 512D/64F

3800 512D/128F

2800 256D/128F


All the memory information are listed in the software download page for their Flash and DRAM requirement.


HTH,

jerry

feng.lian Wed, 06/16/2010 - 23:44
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Ok thanks. I guess I'll have to look at every IOS image and
build my own table.

feng.lian Thu, 06/17/2010 - 07:45
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That's a nice reference page. Thanks, bookmarked it.

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