4.4. Backup and restore traffic control configurations

tcshow command output can be used as a backup, and tcset command can restore configurations from a backup.

4.4.1. e.g. Backup configurations

# tcset eth0 --delay 10 --delay-distro 2  --loss 0.01 --rate 0.25M --network 192.168.0.10 --port 8080
# tcset eth0 --delay 1 --loss 0.02 --rate 500K --direction incoming
# tcset eth1 --delay 2.5 --delay-distro 1.2 --loss 0.01 --rate 0.25M --port 80
# tcset eth1 --corrupt 0.02 --rate 1.5M --direction incoming --network 192.168.10.0/24

Redirect configurations to the tcconfig.json file.

# tcshow eth0 eth1 > tcconfig.json

4.4.2. e.g. Restore configurations

Before restore

# tcshow eth0 eth1
{
    "eth1": {
        "outgoing": {},
        "incoming": {}
    },
    "eth0": {
        "outgoing": {},
        "incoming": {}
    }
}

Restore from a configuration file (tcconfig.json).

# tcset tcconfig.json --import-setting

After restore

# tcshow eth0 eth1
{
    "eth1": {
        "outgoing": {
            "dst-port=80, protocol=ip": {
                "filter_id": "800::800",
                "delay": "2.5ms",
                "delay-distro": "1.2ms",
                "loss": 0.01,
                "rate": "250Kbps"
            }
        },
        "incoming": {
            "dst-network=192.168.10.0/24, protocol=ip": {
                "filter_id": "800::800",
                "corrupt": 0.02,
                "rate": "1500Kbps"
            }
        }
    },
    "eth0": {
        "outgoing": {
            "dst-network=192.168.0.10/32, dst-port=8080, protocol=ip": {
                "filter_id": "800::800",
                "delay": "10.0ms",
                "delay-distro": "2.0ms",
                "loss": 0.01,
                "rate": "250Kbps"
            }
        },
        "incoming": {
            "protocol=ip": {
                "filter_id": "800::800",
                "delay": "1.0ms",
                "loss": 0.02,
                "rate": "500Kbps"
            }
        }
    }
}