<switch number> Error HLO-HLOTIMEOUT, 2, Incompatible Hello timeout <HELLO
timeout> from port <port number>, correct value <correct value>
The HELLO message was incompatible and timed out on the specified port. Since
the HELLO timeout value is incompatible (the HELLO timeout value does not
match the value specified in the FSPF protocol), the local switch will not accept
FSPF frames from the remote switch.
The HELLO timeout value of the remote switch must be made compatible with
the value specified in the FSPF protocol. See the manufacturer's documentation to
change this value.
<switch number> Error HLO-INVHLO, 2, Invalid Hello received from port
<port number>, Domain = <domain ID>, Remote Port = <remote port ID>
The HELLO message received from the specified local port, domain ID, and
remote port ID was reported to be invalid.
Diagnostic and System Error Messages Version 3.1.x Reference Guide
HLO_System Error Messages