> Is there any way where i can get the GUID (Globally Unique Identifier)
 > or equivalent of a network interface ? This identifier is used by the
 > OS to uniquely identify devices on the system.

Two questions:

   1. What do you consider a "network interface"?  Solaris has a more
      complex topology than other UNIX variants -- e.g., network devices,
      datalinks, and IP interfaces are all distinct namespaces and
      layers.
 
   2. As per (1), devices, datalinks, and IP interfaces all have unique
      namespaces.  Thus, the tuple of <nodename,ifname> should uniquely
      identify a given object.  Why is this not sufficient?

-- 
meem
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