CobraNet modules can crash in the presence of excessive network traffic (data storms).
Excessive traffic is almost always caused by the presence of a loop but can, in some cases, be a consequence of normal operation.
Loops, in conjunction with the use of Spanning Tree or an analogous feature such as RSTP, MSTP or Meshing (a proprietary HP protocol), can be intentionally used to create fault tolerant network topologies.
Different topologies can cause loop effects.
Loops and use of Spanning Tree will typically only apply to networks that use more than one switch. Use of more than one switch is common.
