High connectivity problems with Sonic can result with data not being delivered to the database, application server, replication and so forth.
In order to view connectivity issues with Sonic (Message Bus - MB) 5.0 review the nohup files of Service Engine (SE) and Data Exchange (DE), which are connected to that particular Sonic cluster. The nohup files are located under the SE and DE INSTALL_DIR/bin.
Connectivity issues are displayed as this output shows:
Thu Jul 14 18:21:40 GMT-06:00 2005 MB_CONNECTED: IP:2506
Thu Jul 14 18:21:40 GMT-06:00 2005 MB_DISCONNECTED: IP:2506
Thu Jul 14 18:21:58 GMT-06:00 2005 MB_CONNECTED: IP:2506