Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Is There a Way to Calculate the Memorty Req'd for An IOS ?

Is There a Way to Calculate the Memorty Req'd for An IOS ?

Is There a Way to Calculate the Memorty Req'd for An IOS ?

I have a 4000-M, and it won't load an IOS that is about 6,500,000 compressed. It will load one about 6,100,000. So this makes me curious, is there a scientific way (the more complicated but accurate the better !) to calculate the DRAM required ? feature Navigator is but of little use. If I were CIO of cisco I'd have the whole thing trashed and start over.

I have created several text files with the decompressing info (# marks) and have started to do calculations, but also one needs to remember that the IOS divides up mem in different areas, so that means that an IOS that decompresses physically from 6,000,000 to let's say 12,000,000 bytes doesn't mean it will fit in 16MB due to stack areas, heaps, etc.

RE: Is There a Way to Calculate the Memorty Req'd for An IOS ?

What's wrong with Feature Navigator? It tells you what is required...

How much flash/DRAM do you have, and what IOS are you trying to load?

If you can't beat 'em, try, try again!

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close