Vasumathi Sundaram writes:
> James Carlson wrote:
> > I don't understand the new "-a", "-b", "-c" and "-l" options on the
> > "::netstat" dcmd. Why are these actually needed? Why not just
> > always display these tables and include a field to indicate status?
> >
> > I don't mind some difference between the user-space command and the
> > dcmd -- that's to be expected -- but it's unclear to me why this
> > particular difference is needed. (If the idea is to mimic the old
> > ndd commands exactly, then don't. The separation in tables that
> > they showed wasn't so necessary.)
> >
> The option "-a" is not new.
Right; I should have left that out.
> If the old ndd commands to display these tables (tcp_conn_hash,
> tcp_bind_hash, tcp_acceptor_hash, tcp_listen_hash, udp_bind_hash) are
> not necessary, then I can just remove those commands.
The point in moving this stuff from ndd to mdb is not to just
translate the existing ad-hoc ndd interfaces verbatim, but to make
sure that the same data is reasonably available:
- For data items that are already printed by "netstat" or some other
utility, that portion of the ndd output can be removed without
touching mdb. (Mirroring the user-level bit into mdb is nice, but
not necessary.)
- For items that aren't printed by some user-level utility, it may
be worth checking whether they _ought_ to be. If so, then make it
so.
- For those things (such as structure addresses) that certainly
don't belong in any user-level utility, or that fall out of the
consideration above (not needed in any user-level utility), then
those need to be displayable in some way in mdb.
- Perhaps a few things were useless no matter what; they can be
tossed.
> We can use the existing ::netstat dcmds which display all connections
> from tcp_conn_cache and udp_conn_cache, with no new options.
As long as we get the same basic information, I'm happy.
--
James Carlson, Solaris Networking <[email protected]>
Sun Microsystems / 35 Network Drive 71.232W Vox +1 781 442 2084
MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677
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