opensolaris - network teaming
Otherwise known as trunking or link aggregation. I believe it is the best way to get that additional boost out of your network server while providing a bit of redundancy on link failure. here is how to do it…
Official docs on the process here… http://docs.sun.com/app/docs/doc/819-6990/gdysn?a=view and some good bits here http://blogs.sun.com/nickyv/entry/link_aggregation_jumpstart_post_install
dladm (data link admin) is the tool for the job. List the links you currently have…
dladm show-link
First shut down the links you are currently using.. (you will have to do this on the console)