On Mon, Oct 16, 2023 at 02:14:28PM +0530, Pushpa Thimmaiah wrote:
> Hi,
> 
> Could you please  provide information about following
> 1. Is there any  lifespan  for enterprise OID allocated by IANA.

OID allocations are forever.

> 2. When a company got acquired by another company,
>     Eg: old company's mib tree    .*1.3.6.1.4.1.xxxx.1.2.5*
>           New company's mib tree
> *  .1.3.6.1.4.1.yyyy*
> 
>     is it recommended to migrate exiting mib-objects unter new company's
> enterprise OID?

Customers that have bought a thingie from old-company expect to be
able to continue using their OIDs under old-company.thingie so no, it is
counter to good practice.

>     i.e
> *.1.3.6.1.4.1.yyyy.1.2.5*
>     Can we retain  exiting  mib object as it is i.e  under old-company's
> enterprise OID?
>     i.e .
> *1.3.6.1.4.1.xxxx.1.2.5  *

You should do it but you could change their STATUS to deprecated.

> 
> I feel if  enterprise-OID has no lifespan or renewal period then old
> company's oid can be retained.
> 
> Kindly guide.

RFC 2578 (STD 58) section 10 is all about how MIB modules should be updated
as time goes by and it lists the allowed changes to a MIB module.

Read RFC 2578!!!

/MF


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