Stan, You can merge nodes using V7.x switches if and only if: 1) The total letterbug count is less than 64 2) The total number of segments is less than 8 (used to be 5, but I think it was raised) 3) The stations can be rebooted so that they can get new addresses Otherwise, you should use the ATS. The ATSs will require a host (Windows only currently). If the Nodes are separate systems, you'll need to merge CSA and reboot the stations to get new addresses regardless of technique. Does that help? Regards, Alex Johnson Invensys Systems, Inc. 10900 Equity Drive Houston, TX 77041 713.329.8472 (voice) 713.329.1700 (fax) 713.329.1600 (switchboard) alex.johnson@xxxxxxxxxxxxxxxx -----Original Message----- From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx] On Behalf Of stan Sent: Friday, February 24, 2006 9:46 AM To: Foxboro List Subject: [foxboro] Conectivity between nodes We are looking down the road and thinking about what upgrade plans we should take for a future cold mill outage. Given a small number of nodes (let's say 2 to 6), that are at, or will be at either version 7.x, or mixed version 6/7 software. In order to provide data sharing, and graphics access between the nodes, would it be better to simply connect their switches with uplinks, or to build a "core" V8 node, and use ATS'es to connect the nodes? Assume all of the V7 and mixed nodes will have switches by then, and there will be no nodes that are just "classic nodebus". -- U.S. Encouraged by Vietnam Vote - Officials Cite 83% Turnout Despite Vietcong Terror - New York Times 9/3/1967 _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: http://www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: http://www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave