Trimble Hall Network Malfunction IV

The trouble continues in Trimble Hall. A malfunction occurred with the same symptoms. We have isolated the problem to the switch in Trimble 007. We disconnected the TH network piece by piece while monitoring connectivity with ping. When the 007 switch was disconnected, connectivity returned. Upon reconnecting the 007 switch, the network maintained connectivity. We will have to wait until the next failure to isolate the trouble to a specific port on that switch.

Database Servers dropping connections, losing packets

The database servers, tahoma & baker, and the frontend forms servers snidley, dudley, and fenwick, began dropping persistent client Oracle and telnet connections. ICMP packets were also lost.

Speed and duplex settings on the switch ports to which these servers were connected were checked and found to be correct (100 Mbps, full duplex).

The problem cleared up after about 1 hour. Will check further.