RFC 5424 The Syslog Protocol March 2009
6.4. MSG .......................................................18
6.5. Examples ..................................................19
7. Structured Data IDs ............................................20
7.1. timeQuality ...............................................20
7.1.1. tzKnown ............................................21
7.1.2. isSynced ...........................................21
7.1.3. syncAccuracy .......................................21
7.1.4. Examples ...........................................21
7.2. origin ....................................................22
7.2.1. ip .................................................22
7.2.2. enterpriseId .......................................22
7.2.3. software ...........................................23
7.2.4. swVersion ..........................................23
7.2.5. Example ............................................23
7.3. meta ......................................................24
7.3.1. sequenceId .........................................24
7.3.2. sysUpTime ..........................................24
7.3.3. language ...........................................24
8. Security Considerations ........................................24
8.1. UNICODE ...................................................24
8.2. Control Characters ........................................25
8.3. Message Truncation ........................................26
8.4. Replay ....................................................26
8.5. Reliable Delivery .........................................26
8.6. Congestion Control ........................................27
8.7. Message Integrity .........................................28
8.8. Message Observation .......................................28
8.9. Inappropriate Configuration ...............................28
8.10. Forwarding Loop ..........................................29
8.11. Load Considerations ......................................29
8.12. Denial of Service ........................................29
9. IANA Considerations ............................................30
9.1. VERSION ...................................................30
9.2. SD-IDs ....................................................30
10. Working Group .................................................31
11. Acknowledgments ...............................................31
12. References ....................................................32
12.1. Normative References .....................................32
12.2. Informative References ...................................33
Appendix A. Implementer Guidelines ...............................34
A.1. Relationship with BSD Syslog ..............................34
A.2. Message Length ............................................35
A.3. Severity Values ..........................................36
A.4. TIME-SECFRAC Precision ....................................36
A.5. Case Convention for Names ................................36
A.6. Syslog Applications Without Knowledge of Time ............37
A.7. Notes on the timeQuality SD-ID ............................37
A.8. UTF-8 Encoding and the BOM ................................37
Gerhards Standards Track [Page 3]
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