IPv6 TrafficGen Test Failure with Trex-TxRx-Profile Backend Support

[pradiptapks]

Description: An issue was encountered while running a bench-trafficgen test with IPv6 support using the trex-txrx-profile backend. The test failed during a binary search operation. The flow modifier was explicitly enabled for the port as suggested, but the issue persists.

Traffic profile:

{
    "streams": [
        {
            "flows": 1024,
            "frame_size": 64,
            "flow_mods": "function:create_flow_mod_object(use_src_ip_flows=False, use_dst_ip_flows=False, use_src_port_flows=True, use_dst_port_flows=True)",
            "rate": 14880952,
            "frame_type": "generic",
            "stream_types": [
                "measurement"
            ],
            "the_packet": "scapy:Ether()/IPv6()/UDP()"
        }
    ]
}

Binary-search exception:

[2024-09-09 15:12:40.020693][001] Connection established
[2024-09-09 15:12:40.153606][001] Creating Streams from loaded traffic profile [trafficgen.profile]
[2024-09-09 15:12:40.153620][001] 
[2024-09-09 15:12:40.153651][001]       Stream 0 is enabled for device pair '0:1'
[2024-09-09 15:12:40.154085][001] EXCEPTION: Traceback (most recent call last):
[2024-09-09 15:12:40.154092][001]   File "/usr/bin/trex-txrx-profile.py", line 1412, in main
[2024-09-09 15:12:40.154097][001]     create_stream(stream, device_pair, t_global.constants['forward_direction'], t_global.constants['reverse_direction'], flow_port_divider)
[2024-09-09 15:12:40.154103][001]   File "/usr/bin/trex-txrx-profile.py", line 696, in create_stream
[2024-09-09 15:12:40.154108][001]     stream['packet_values']['ips'][dst_port],
[2024-09-09 15:12:40.154113][001] KeyError: 'ips'
[2024-09-09 15:12:40.154118][001] 
[2024-09-09 15:12:40.154153][001] Disconnecting from TRex server...
[2024-09-09 15:12:40.157073][001] Connection severed
[2024-09-09 15:12:40.203145][BSO] tg return code: 1

Log tar file: link