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Updated June 22nd, 2016
This article discusses the required Flow template fields in NTA. Flow packets will be ignored if the required fields are not included in the Flow template.
All NTA versions
|Field Type||Field Type Number||Description|
|IN_BYTES||1||Ingress bytes counter|
|IN_PKTS||2||Ingress packets counter|
|PROTOCOL||4||Layer 4 protocol|
|L4_SRC_PORT||7||Source TCP/UDP port|
|IPV4_SRC_ADDR||8||Source IP address|
|INPUT_SNMP||10||SNMP ingress interface index|
|L4_DST_PORT||11||Destination TCP/UDP port|
|IPV4_DST_ADDR||12||Destination IP address|
|OUTPUT_SNMP||14||SNMP egress interface index|
OUTPUT_SNMP) should be provided to view accurate statistics for both ingress and egress flows.
SRC_TOSfield corresponding to the service type of ingress traffic on an interface (field type number
5) is required to view Type of Service information for your traffic through a Flow source. The templates used by Cisco 4500 series switches and Adaptive Security Appliances (ASA) do not provide information in this field.
TCP_FLAGSfield (field type number
6) corresponding to a count of all TCP flags seen in the related Flow.