Number of LBT-RM datagrams received not belonging to any transport session.

C# |
public long lbtrmUnknownMessagesReceived()

Number of LBT-RM datagrams received not belonging to any transport
session. Such occurrences should be investigated. These datagrams can be
from a source in a different topic resolution domain targeting the same group
(or IP) and port as a source of interest on this receiver's topic resolution
domain. Among less likely possibilities would be an attempt to spoof UM
messages.