cisco ios downloads confusion

hi,
https://software.cisco.com/download/release.html?mdfid=270568145&softwareid=280805680&release=12.1.22-EA14&relind=AVAILABLE&rellifecycle=ED&reltype=latest
q1. what does the crypto/image mean below ?

q2.  when I see both ei & si does this mean it is compatible with both ?

c2950 ei & si ios crypto image  
- c2950-i6k2l2q4-mz.121-22.ea14.bin  
 
c2950 ei & si crypto & web based device manager
- c2950-i6k2l2q4-tar.121-22.ea14.tar  

q3.  how do I find out if my cisco 2950-12 or 2950-24 is a LRE example  ?
mikey250Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Don JohnstonInstructorCommented:
1) Means that it supports cryptography.  In the case of a L-2 switch, SSH.
2) Yes
3) Should be able to see that in the "show version" output.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
mikey250Author Commented:
I have found the below link explaining the differences although somewhat confusing:

https://supportforums.cisco.com/discussion/10299471/ios-upgrade-path-2950-switches
0
mikey250Author Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for mikey250's comment #a40679917

for the following reason:

good link.
0
Big Business Goals? Which KPIs Will Help You

The most successful MSPs rely on metrics – known as key performance indicators (KPIs) – for making informed decisions that help their businesses thrive, rather than just survive. This eBook provides an overview of the most important KPIs used by top MSPs.

Daniel SheppardSenior Network Analyst - Core & PerimeterCommented:
I think Don should be assigned at least a portion of the points as he did help.
0
mikey250Author Commented:
I closed the question because I did not see no comments from any experts but it would obviously a network/sync issue although I have pressed f5 for eg.

yes now I see that 'don' gave answer at the same time I was putting my comments in and closing the thread same time.  so I will allocate all points.

thanks for that as appreciated all advice.
0
mikey250Author Commented:
I closed the question because I did not see no comments from any experts but it would obviously a network/sync issue although I have pressed f5 for eg.  so I will allocate all points.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Switches / Hubs

From novice to tech pro — start learning today.