What software to use to update Cisco 3650 switch

[sergef1973]

Hello all,

I have a Cisco 3650 switch (Model WS-C3650-48TD) and I am trying to upgrade firmware. 

Currently I have 

Switch  Ports        Model                     SW Version                SW Image                              Mode
------ -----        -----                    ----------               ----------                              ----
* 1         52       WS-C3650-48TD       03.06.04.E               cat3k_caa-universalk9           INSTALL

I looked into download section and I see multiple options. 

Which one should I use.

Thank you very much for your help.

Serge

[Leo Laohoo]

Stay with the latest 3.6.X.

[sergef1973]

There are two different software bundles:

File Information 

Release Date 

Size

CAT3850/3650 UNIVERSAL  

cat3k_caa-universalk9.SPA.03.06.08.E.152-2.E8.bin

30-JAN-2018

291.15 MB

CAT3850/3650 UNIVERSAL W/O DTLS  

cat3k_caa-universalk9ldpe.SPA.03.06.08.E.152-2.E8.bin

30-JAN-2018

291.15 MB

Which package should I use?

Thank you,

Serge

[Francesco Molino · Accepted solution]

Hi

You should go with 3.06.08

[sergef1973]

There are two different software bundles:

File Information 

Release Date 

Size

CAT3850/3650 UNIVERSAL  

cat3k_caa-universalk9.SPA.03.06.08.E.152-2.E8.bin

30-JAN-2018

291.15 MB

CAT3850/3650 UNIVERSAL W/O DTLS  

cat3k_caa-universalk9ldpe.SPA.03.06.08.E.152-2.E8.bin

30-JAN-2018

291.15 MB

Which package should I use?

Thank you,

Serge

[nazimkha · Accepted solution]

The image with ldpe {cat3k_caa-universalk9ldpe.SPA.03.06.08.E.152-2.E8.bin} (DTLS disabled) is used if there are certain country specific limitations (like Russia).

If you dont have any restrictions for encryption than you can use {cat3k_caa-universalk9.SPA.03.06.08.E.152-2.E8.bin}

similar thread
https://community.cisco.com/t5/routing/what-is-the-difference-between-the-c3850-48t-models-on-cisco/td-p/2900528