wimaxing 2008-7-5 12:36
RFC5101-Specification of the IP Flow Information Export (IPFIX) Protocol
【资料成文时间】： 2007
【语言】：英文
【页数】：63
【何人（公司）所著】：
【文件格式】： PDF
【文件原名】：Specification of the IP Flow Information Export (IPFIX) Protocol for the Exchange of IP Traffic Flow Information
【摘要或目录】：
Table of Contents
1. Introduction ....................................................3
1.1. IPFIX Documents Overview ...................................4
2. Terminology .....................................................4
2.1. Terminology Summary Table ..................................9
3. IPFIX Message Format ...........................................10
3.1. Message Header Format .....................................11
3.2. Field Specifier Format ....................................13
3.3. Set and Set Header Format .................................14
3.3.1. Set Format .........................................14
3.3.2. Set Header Format ..................................15
3.4. Record Format .............................................16
3.4.1. Template Record Format .............................16
3.4.2. Options Template Record Format .....................18
3.4.2.1. Scope .....................................19
3.4.2.2. Options Template Record Format ............20
3.4.3. Data Record Format .................................22
4. Specific Reporting Requirements ................................23
4.1. The Metering Process Statistics Option Template ...........23
4.2. The Metering Process Reliability Statistics Option
Template ..................................................24
4.3. The Exporting Process Reliability Statistics
Option Template ...........................................25
4.4. The Flow Keys Option Template .............................26
5. IPFIX Message Header "Export Time" and Flow Record Time ........27
6. Linkage with the Information Model .............................28
6.1. Encoding of IPFIX Data Types ..............................28
6.1.1. Integral Data Types ................................28
6.1.2. Address Types ......................................28
6.1.3. float32 ............................................28
6.1.4. float64 ............................................28
6.1.5. boolean ............................................28
6.1.6. string and octetarray ..............................28
6.1.7. dateTimeSeconds ....................................29
6.1.8. dateTimeMilliseconds ...............................29
6.1.9. dateTimeMicroseconds ...............................29
6.1.10.dateTimeNanoseconds.................................29
6.2. Reduced Size Encoding of Integer and Float Types ..........29
7. Variable-Length Information Element ............................30
8. Template Management ............................................31
9. The Collecting Process’s Side ..................................34
10. Transport Protocol ............................................36
10.1. Transport Compliance and Transport Usage .................36
10.2. SCTP .....................................................37
10.2.1. Congestion Avoidance ..............................37
10.2.2. Reliability .......................................37
10.2.3. MTU ...............................................37
10.2.4. Exporting Process .................................38
10.2.4.1. Association Establishment ................38
10.2.4.2. Association Shutdown .....................38
10.2.4.3. Stream ...................................38
10.2.4.4. Template Management ......................39
10.2.5. Collecting Process ................................39
10.2.6. Failover ..........................................39
10.3. UDP ......................................................39
10.3.1. Congestion Avoidance ..............................39
10.3.2. Reliability .......................................40
10.3.3. MTU ...............................................40
10.3.4. Port Numbers ......................................40
10.3.5. Exporting Process .................................40
10.3.6. Template Management ...............................40
10.3.7. Collecting Process ................................41
10.3.8. Failover ..........................................42
10.4. TCP ......................................................42
10.4.1. Connection Management .............................42
10.4.1.1. Connection Establishment .................42
10.4.1.2. Graceful Connection Release ..............43
10.4.1.3. Restarting Interrupted Connections .......43
10.4.1.4. Failover .................................43
10.4.2. Data Transmission .................................43
10.4.2.1. IPFIX Message Encoding ...................43
10.4.2.2. Template Management ......................44
10.4.2.3. Congestion Handling and Reliability ......44
10.4.3. Collecting Process ................................45
11. Security Considerations .......................................46
11.1. Applicability of TLS and DTLS ............................47
11.2. Usage ....................................................48
11.3. Authentication ...........................................48
11.4. Protection against DoS Attacks ...........................48
11.5. When DTLS or TLS Is Not an Option ........................50
11.6. Logging an IPFIX Attack ..................................50
11.7. Securing the Collector ...................................51
12. IANA Considerations ...........................................51
Appendix A. IPFIX Encoding Examples ...............................52
A.1. Message Header Example.....................................52
A.2. Template Set Examples......................................53
A.2.1. Template Set Using IETF-Specified Information
Elements ...........................................53
A.2.2. Template Set Using Enterprise-Specific Information
Elements ...........................................53
A.3. Data Set Example ..........................................55
A.4. Options Template Set Examples .............................56
A.4.1. Options Template Set Using IETF-Specified
Information Elements ...............................56
A.4.2. Options Template Set Using Enterprise-Specific
Information Elements ...............................56
A.4.3. Options Template Set Using an Enterprise-Specific
Scope ..............................................57
A.4.4. Data Set Using an Enterprise-Specific Scope ........58
A.5. Variable-Length Information Element Examples ..............59
A.5.1. Example of Variable-Length Information Element
with Length Inferior to 255 Octets .................59
A.5.2. Example of Variable-Length Information Element
with Length 255 to 65535 Octets ....................59
References ........................................................59
Normative References ...........................................59
Informative References .........................................60
Acknowledgments ...................................................61