Setting Description
Transport errors Number of transport layer errors
CnReject no sockets Number of rejected TCP connections due to unavailable
sockets
CnReject unregistered Number of rejected TCP connections due to an unregistered
client
3.8.5.1 Secure authentication diagnostic counters
The secure authentication diagnostic counters are located under Monitoring>
Communication> Protocols> Secure IEC104 (n).
Table 15: Secure authentication diagnostic counters
Counter Description
Unexp Msgs Cnt Number of unexpected messages
Auth Fail Cnt Number of authorization failures
Authn Fail Cnt Number of authentication failures
Reply timeouts Cnt Number of reply time-outs
Rekey Authn Fail Cnt Number of rekeys due to authentication failure
Total Msgs Tx Number of messages transmitted
Total Msgs Rx Number of messages received
Critical Msgs Rx Cnt Number of critical messages received
Discarded Msgs Cnt Number of discarded messages
Err Msgs Tx Cnt Number of error messages transmitted
Err Msgs Rx Cnt Number of error messages received
Successful Authn Cnt Number of successful authentications
Session Key Chg Cnt Number of session key changes
Fail Ses Key Chg Cnt Number of failed session key changes
Upd Key Chgs Cnt Number of update key changes
Fail Upd Key Chgs Cnt Number of failed update key changes
3.8.6 Advanced protocol customization
Different advanced customization features are supported by the protocol; these
features can be enabled via the Prtl Customization configuration parameter.
The Prtl Customization parameter is a 31-bit bitmask. Currently, bit zero (0) is in
use. The setting value for each customization feature is calculated by the following
formula: 2^(bit number).
3.8.6.1 IEC104 advanced customization features
The following table summarizes each of the advanced features supported by the
protocol.
2NGA001859 A
Vendor-specific implementation
REX615
IEC 60870-5-104 Communication Protocol Manual
33
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