If these are the result of multiple links, I would think the link names would be different. This is a long shot, but is it possible that this TCP/IP stopped unexpectedly at some point in time and was restarted without an IPL or Logoff/Logon? The Stack identifies which buffers the CP monitor will collect by issuing a diagnose x'DC' during intialization. It's almost like multiple bufferes got created.
Bill Bitner - z/VM Customer Focus and Care - IBM Endicott - 607-429-3286