{
    "title": "{group1} {group2} traffic",
    "style": "area",
    "datapoints": [
        {
            "data_formula": "8,*",
            "name": "Out octets",
            "check_id": "{check_id}",
            "legend_formula": "auto,2,round",
            "color": "#4a00dc",
            "derive": "counter",
            "metric_type": "numeric",
            "metric_name": "out_octets",
            "hidden": false,
            "axis": "l"
        },
        {
            "data_formula": "-8,*,auto",
            "name": "In Octets",
            "check_id": "{check_id}",
            "legend_formula": "-1,*,auto,2,round",
            "color": "#33aa33",
            "derive": "counter",
            "metric_type": "numeric",
            "metric_name": "in_octets",
            "hidden": false,
            "axis": "l"
        }
    ]
}

{
    "title": "{group1} {group2} traffic",
    "style": "area",
    "datapoints": [
        {
            "data_formula": "8,*",
            "name": "Outbound traffic (bps)",
            "check_id": "{check_id}",
            "legend_formula": "auto,2,round",
            "color": "#4a00dc",
            "derive": "counter",
            "metric_type": "numeric",
            "metric_name": "out_octets",
            "hidden": false,
            "axis": "l"
        },
        {
            "data_formula": "-8,*,auto",
            "name": "Inbound traffic (bps) ",
            "check_id": "{check_id}",
            "legend_formula": "-1,*,auto,2,round",
            "color": "#33aa33",
            "derive": "counter",
            "metric_type": "numeric",
            "metric_name": "in_octets",
            "hidden": false,
            "axis": "l"
        }
    ]
}

Fix legend - it's bits, not octets
Fix legend - it's bits, not octets
