+# 'scapy' - A dictionary with definition of a frame content for both traffic
+# directions. The frame content is defined by a SCAPY notation.
+# NOTE: It is supported only by the T-Rex traffic generator.
+# Following keywords can be used to refer to the related parts of
+# the TRAFFIC dictionary:
+# Ether_src - refers to TRAFFIC['l2']['srcmac']
+# Ether_dst - refers to TRAFFIC['l2']['dstmac']
+# IP_proto - refers to TRAFFIC['l3']['proto']
+# IP_PROTO - refers to upper case version of TRAFFIC['l3']['proto']
+# IP_src - refers to TRAFFIC['l3']['srcip']
+# IP_dst - refers to TRAFFIC['l3']['dstip']
+# IP_PROTO_sport - refers to TRAFFIC['l4']['srcport']
+# IP_PROTO_dport - refers to TRAFFIC['l4']['dstport']
+# Dot1Q_prio - refers to TRAFFIC['vlan']['priority']
+# Dot1Q_id - refers to TRAFFIC['vlan']['cfi']
+# Dot1Q_vlan - refers to TRAFFIC['vlan']['id']
+# '0' - A string with the frame definition for the 1st direction.
+# Data type: str
+# Default value: 'Ether(src={Ether_src}, dst={Ether_dst})/'
+# 'Dot1Q(prio={Dot1Q_prio}, id={Dot1Q_id}, vlan={Dot1Q_vlan})/'
+# 'IP(proto={IP_proto}, src={IP_src}, dst={IP_dst})/'
+# '{IP_PROTO}(sport={IP_PROTO_sport}, dport={IP_PROTO_dport})'
+# '1' - A string with the frame definition for the 2nd direction.
+# Data type: str
+# Default value: 'Ether(src={Ether_dst}, dst={Ether_src})/'
+# 'Dot1Q(prio={Dot1Q_prio}, id={Dot1Q_id}, vlan={Dot1Q_vlan})/'
+# 'IP(proto={IP_proto}, src={IP_dst}, dst={IP_src})/'
+# '{IP_PROTO}(sport={IP_PROTO_dport}, dport={IP_PROTO_sport})',
+# 'latency_histogram'
+# - A dictionary with definition of a latency histogram provision in results.
+# 'enabled' - Specifies if the histogram provisioning is enabled or not.
+# 'type' - Defines how histogram is provided. Currenty only 'Default' is defined.
+# 'Default' - Default histogram as provided by the Traffic-generator.
+# 'imix' - A dictionary for IMIX Specification.
+# 'enabled' - Specifies if IMIX is enabled or NOT.
+# 'type' - The specification type - denotes how IMIX is specified.
+# Currently only 'genome' type is defined.
+# Other types (ex: table-of-proportions) can be added in future.
+# 'genome' - The Genome Encoding of Pkt-Sizes and Ratio for IMIX.
+# The ratio is inferred from the number of particular geneome characters.
+# Genome encoding is described in RFC 6985. This specification is closest
+# to the method described in section 6.2 of RFC 6985.
+# Ex: 'aaaaaaaddddg' denotes ratio of 7:4:1 of packets sizes 64:512:1518.
+# Note: Exact-sequence is not maintained, only the ratio of packets
+# is ensured.
+# Data type: str
+# Default Value: 'aaaaaaaddddg'