Hi Steven,
This question would be likely to get a better and faster answer on the "LAN, Switching and Routing" forum, and it looks like a question that needs to be answered. Would you mind copying, pasting, and posting it over there? Our charter here is -
Mainframe connectivity, SNA Switching Services, DLSw+, managing SNA/IP internetworks
Not that we don't use everything else, it's just what we use it for that's different.
Rgds, Dan