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Version 8 Formats and Fields
A detailed explanation of version 8 packet formats
and fields is shown as follows:
Figure 51: Version 8 Template Flow Format
Table 39: Version
8 Flow Template Fields
|
Field
|
Description
|
|
Version
|
8
|
|
Count
|
The number of records in the protocol data unit (PDU) or packet
|
|
sysUptime
|
Current time elapsed, in milliseconds, since the routing platform
started
|
|
UNIX seconds
|
Current seconds since 0000 UTC 1970
|
|
UNIX nanoseconds
|
Residual nanoseconds since 0000 UTC 1970
|
|
Flow sequence number
|
Sequence counter of total flows received
|
|
Engine type
|
Type of flow switching engine
|
|
Engine ID
|
ID number of the flow switching engine
|
|
Aggregation method
|
Aggregation method used
|
|
Aggregation version
|
Version of the aggregation export
|
|
Reserved
|
Empty field reserved for future usage
|
Figure 52: Version 8 AS Aggregation Flow Entry
Format
Table 40: Version
8 AS Aggregation Flow Entry Fields
|
Field
|
Description
|
|
Flows
|
Total number of flows
|
|
Packets
|
Total number of packets received in a flow
|
|
Bytes
|
Total number of bytes received in a flow
|
|
Start time of flow
|
System up time, in seconds, at the start of the flow
|
|
End time of flow
|
System up time, in seconds, at the end of the flow
|
|
Source AS
|
AS number of the source address
|
|
Destination AS
|
AS number of the destination address
|
|
Input interface
|
SNMP index value for the input interface where the routing platform
receives flows
|
|
Output interface
|
SNMP index value for the output interface where the routing
platform forwards flows
|
Figure 53: Version 8 Protocol/Port Aggregation
Flow Entry Format
Table 41: Version
8 Protocol/Port Aggregation Flow Entry Fields
|
Field
|
Description
|
|
Flows
|
Total number of flows
|
|
Packets
|
Total number of packets received in a flow
|
|
Bytes
|
Total number of bytes received in a flow
|
|
Start time of flow
|
System up time, in seconds, at the start of the flow
|
|
End time of flow
|
System up time, in seconds, at the end of the flow
|
|
IP protocol
|
IP protocol number
|
|
Padding
|
Bytes available to ensure a minimum packet length
|
|
Reserved
|
Empty field reserved for future usage
|
|
Source port
|
Source application port
|
|
Destination port
|
Destination application port
|
Figure 54: Version 8 Prefix Aggregation Flow
Entry Format
Table 42: Version
8 Prefix Aggregation Flow Entry Fields
|
Field
|
Description
|
|
Flows
|
Total number of flows
|
|
Packets
|
Total number of packets received in a flow
|
|
Bytes
|
Total number of bytes received in a flow
|
|
Start time of flow
|
System up time, in seconds, at the start of the flow
|
|
End time of flow
|
System up time, in seconds, at the end of the flow
|
|
Source prefix
|
Source IP address prefix
|
|
Destination prefix
|
Destination IP address prefix
|
|
Source mask length
|
Source address network mask length
|
|
Dest. mask length
|
Destination address network mask length
|
|
Reserved
|
Empty field reserved for future usage
|
|
Source AS
|
AS number of the source address
|
|
Destination AS
|
AS number of the destination address
|
|
Input interface
|
SNMP index value for the input interface where the routing platform
receives flows
|
|
Output interface
|
SNMP index value for the output interface where the routing
platform forwards flows
|
Figure 55: Version 8 Source Prefix Aggregation
Flow Entry Format
Table 43: Version
8 Source Prefix Aggregation Flow Entry Fields
|
Field
|
Description
|
|
Flows
|
Total number of flows
|
|
Packets
|
Total number of packets received in a flow
|
|
Bytes
|
Total number of bytes received in a flow
|
|
Start time of flow
|
System up time, in seconds, at the start of the flow
|
|
End time of flow
|
System up time, in seconds, at the end of the flow
|
|
Source prefix
|
Source IP address prefix
|
|
Source mask length
|
Source address network mask length
|
|
Padding
|
Bytes available to ensure a minimum packet length
|
|
Source AS
|
AS number of the source address
|
|
Input interface
|
SNMP index value for the input interface where the routing platform
receives flows
|
|
Reserved
|
Empty field reserved for future usage
|
Figure 56: Version 8 Destination Prefix Aggregation
Flow Entry Format
Table 44: Version
8 Destination Prefix Aggregation Flow Entry Fields
|
Field
|
Description
|
|
Flows
|
Total number of flows
|
|
Packets
|
Total number of packets received in a flow
|
|
Bytes
|
Total number of bytes received in a flow
|
|
Start time of flow
|
System up time, in seconds, at the start of the flow
|
|
End time of flow
|
System up time, in seconds, at the end of the flow
|
|
Destination prefix
|
Destination IP address prefix
|
|
Dest. mask length
|
Destination address network mask length
|
|
Padding
|
Bytes available to ensure a minimum packet length
|
|
Destination AS
|
AS number of the destination address
|
|
Output interface
|
SNMP index value for the output interface where the routing
platform forwards flows
|
|
Reserved
|
Empty field reserved for future usage
|
For more information about version 5 and version
8 packet formats and fields, see http://www.caida.org.
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