Template format 1 and format 2

Table: Template format 1 and Table: Template format 2 show information elements that are present in data sets during flow creation and deletion for the two formats. Each template set carries a unique template ID that is used to match the corresponding data set that carries the same ID in the set header (Set Id field).

Table: Template format 1
Flow creation template set Flow deletion templates set
Description Size (B) Description Size (B)

flowId

8

flowId

8

sourceIPv4Address

4

sourceIPv4Address

4

destinationIPv4Address

4

destinationIPv4Address

4

sourceTransportPort

2

sourceTransportPort

2

destinationTransportPort

2

destinationTransportPort

2

flowStartMilliseconds

8

flowEndMilliseconds

8

protocolIdentifier

1

protocolIdentifier

1

paddingOctets

1

flowEndReason

1

aluInsideServiceID

2

aluInsideServiceID

2

aluOutsideServiceID

2

aluOutsideServiceID

2

aluNatSubString

var

aluNatSubString

var
Table: Template format 2
Flow creation template set Flow deletion templates set
Description Size (B) Description Size (B)

flowId

8

flowId

8

postNATSourceIPv4Address

4

postNATSourceIPv4Address

4

destinationIPv4Address

4

destinationIPv4Address

4

sourceTransportPort

2

sourceTransportPort

2

postNAPTSourceTransportPort

2

postNAPTSourceTransportPort

2

destinationTransportPort

2

destinationTransportPort

2

flowStartMilliseconds

8

protocolIdentifier

1

protocolIdentifier

1

flowEndReason

1

paddingOctets

1

flowEndMilliseconds

8

aluInsideServiceID

2

aluInsideServiceID

2

aluOutsideServiceID

2

aluOutsideServiceID

2

aluNatSubString

var

aluNatSubString

var
Parent topic: LSN and L2-Aware NAT flow logging