Nexus 5548UP upgrade, note on micro-controller

[sandevsingh]

Hi, I recently upgraded our 5548UP nexus switches from 5.1(3)N1(1a) to 5.2.1.N1.3. during the end of the upgrade (before rebooting) it says the following -

ote: Micro-controller upgrade needs a power-cycle to take into effect.

On success of micro-controller upgrade, SWITCH OFF THE POWER to the system and then, power it up.

Do we really need to power cycle the SW, power off and on? is this step really needed after the upgrade aas it has already rebooted?

Thnx

[Edgar Wolff]

Hi,

the note during the upgrade confuses me too.

As far as I understand, it depends on image uC version change.

Images will be upgraded according to following table:

Module       Image         Running-Version             New-Version  Upg-Required

------  ----------  ----------------------  ----------------------  ------------

     1      system             5.1(3)N2(1)            5.2(1)N1(2a)           yes

     1   kickstart             5.1(3)N2(1)            5.2(1)N1(2a)           yes

     1        bios      v3.5.0(02/03/2011)      v3.6.0(05/09/2012)           yes

     1      SFP-uC                v1.0.0.0                v1.0.0.0            no

   101       fexth             5.1(3)N2(1)            5.2(1)N1(2a)           yes

   102       fexth             5.1(3)N2(1)            5.2(1)N1(2a)           yes

     1   power-seq                    v5.0                    v5.0            no

     1          uC                v1.0.0.2                v1.0.0.2            no

In this case no version change -> power off/on is not necessary.

Best regards