topic %Error: This operation is not supported from a secondary node in Data Center (VDX)

%Error: This operation is not supported from a secondary node

Pawel_Eljasz — Fri, 28 Aug 2020 18:08:07 GMT

Hi,

I wonder if the error is a an unexpected fluke or a correct behaviour - this happens when I execute certain command while sshed to a VE’s IP (It is a two switches VCS I have)

Example:

brc_bot(config)# int po 21
brc_bot(config-Port-channel-21)# no switch
 %Error: This operation is not supported from a secondary node

many thanks, L.

Re: %Error: This operation is not supported from a secondary node

Michael_Andreas — Fri, 28 Aug 2020 18:22:52 GMT

Hi Pawel,

it seems you try to configure from secondary switch! You need to get this done from the primary switch.

Have a look at show VCS

Rbridge-Id       WWN                            Management IP   VCS Status       Fabric Status        HostName
--------------------------------------------------------------------------------------------------------------
1               >10:00:50:EB:1A:4B:3F:9C*       1.1.1.1    Online           Online               vdx6740-1
2                10:00:50:EB:1A:39:2D:78      1.1.1.2    Online           Online               vdx6740-2

the switch with the > in front of his WWN is the primary switch

Regards

Re: %Error: This operation is not supported from a secondary node

Michael_Morey — Fri, 28 Aug 2020 20:23:46 GMT

I agree with this. Configuration changes can only be made from the primary node as the configuration database is synced between all the nodes in the Logical Chassis fabric.

To make this process easier, I would recommend you setup a Virtual IP so that you login to the primary node every time:

sw0# configure

sw0(config)# vcs virtual ip address x.x.x.x/24

Mike Morey