async def test_tgen_link_speed_change(testbed):
"""
# setup the traffic with link across the infra switches
# bring down all the links between the infra that are 10G links
# set the speec on the inter infra links to reduced speed
# send traffic at line rate and check the rate at recieving end.
"""
tgen_dev, infra_devices = await tgen_utils_get_dent_devices_with_tgen(
testbed, [DeviceType.INFRA_SWITCH], 1)
if not tgen_dev or not infra_devices or len(infra_devices) < 2:
testbed.applog.info(
"The testbed does not have enough dent with tgen connections or infra devices with tgen connections"
)
return
# pick two devices
infra_devices = infra_devices[:2]
# get the links between the two infra devices
infra1 = infra_devices[0]
infra2 = infra_devices[1]
# there has to be intra infra links
if infra2.host_name not in infra1.links_dict:
tgen_dev.applog.info(
f"The two infras {infra1.host_name} and {infra2.host_name} are not connected to each other."
)
return
await tb_reload_nw_and_flush_firewall(infra_devices)
for dd in infra_devices:
# bring down the links that are 10g links
for swp in range(49, 53):
link = f"swp{swp}"
out = await IpLink.set(input_data=[{
dd.host_name: [{
"device": link,
"operstate": "down"
}]
}], )
assert out[0][dd.host_name][
"rc"] == 0, f"Failed to down the link {link} {out}"
devices_info = {}
for dd in infra_devices:
devices_info[dd.host_name] = [
# 'count' is the number of endpoints
{
"vlan": 100,
"name": "Mgmt",
"count": 1,
},
]
await tgen_utils_create_devices_and_connect(tgen_dev,
infra_devices,
devices_info,
need_vlan=False)
src = []
dst = []
for dd in infra_devices:
swp = tgen_dev.links_dict[dd.host_name][1][0]
# just need one link on each infra
src.append(f"{dd.host_name}_Mgmt_{swp}")
dst.append(f"{dd.host_name}_Mgmt_{swp}")
# infra to infra traffic streams
streams = {
"tcp_ssh_mgmt_flow": {
"ip_source": src,
"ip_destination": dst,
"protocol": "ip",
"ipproto": "tcp",
"dstPort": "22",
"rate": 40000,
"frameSize": 512,
},
}
await tgen_utils_setup_streams(
tgen_dev,
pytest._args.config_dir + f"/{tgen_dev.host_name}/tgen_vlan_streams",
streams,
force_update=True,
)
speeds = [1000, 100, 10]
rx_rates = [3, 1, 0] # in kpps
duration = 30
for speed, rate in zip(speeds, rx_rates):
# set the speed on the inter infra link
for swp in infra1.links_dict[infra2.host_name][0]:
out = Ethtool.set(input_data=[{
infra1.host_name: [{
"devname": swp,
"speed": speed,
"autoneg": "on"
}]
}], )
infra1.applog.info(out)
await tgen_utils_start_traffic(tgen_dev)
time.sleep(duration)
await tgen_utils_stop_traffic(tgen_dev)
stats = await tgen_utils_get_traffic_stats(tgen_dev, "Flow Statistics")
# add verification logic here.
for crow in stats.Rows:
cti = crow["Traffic Item"]
pair = crow["Source/Dest Value Pair"]
rx_rate = float(crow["Rx Frames"]) / duration
tx_rate = float(crow["Tx Frames"]) / duration
tgen_dev.applog.info(
f"CTI {cti} pair {pair} Rx Rate {rx_rate} pps Tx Rate {tx_rate} pps"
)
if int(rx_rate / 10000) != rate:
assert 0, f"Rate does not match {rx_rate} {rate}"
await tgen_utils_stop_protocols(tgen_dev)
# bring back up the links
for dd in infra_devices:
# bring down the links that are 10g links
for swp in range(49, 53):
link = f"swp{swp}"
out = await IpLink.set(input_data=[{
dd.host_name: [{
"device": link,
"operstate": "up"
}]
}], )
assert out[0][
dd.host_name]["rc"] == 0, f"Failed to up the link {link} {out}"
def test_that_ethtool_set(capfd):
dv1 = TestDevice(platform="dentos")
dv2 = TestDevice(platform="dentos")
loop = asyncio.get_event_loop()
out = loop.run_until_complete(
Ethtool.set(
input_data=[{
# device 1
"test_dev": [{}],
}],
device_obj={"test_dev": dv1},
))
print(out)
assert "command" in out[0]["test_dev"].keys()
assert "result" in out[0]["test_dev"].keys()
# check the rc
assert out[0]["test_dev"]["rc"] == 0
loop = asyncio.get_event_loop()
out = loop.run_until_complete(
Ethtool.set(
input_data=[{
# device 1
"test_dev1": [
{
# command 1
"devname": "cwwmnkao",
"options": "oxfsuamb",
},
{
# command 2
"devname": "isjjwtid",
"options": "smlqfxrg",
},
],
}],
device_obj={
"test_dev1": dv1,
"test_dev2": dv2
},
))
print(out)
# check if the command was formed
assert "command" in out[0]["test_dev1"].keys()
# check if the result was formed
assert "result" in out[0]["test_dev1"].keys()
# check the rc
assert out[0]["test_dev1"]["rc"] == 0
loop = asyncio.get_event_loop()
out = loop.run_until_complete(
Ethtool.set(
input_data=[{
# device 1
"test_dev1": [{
"devname": "cwwmnkao",
"options": "oxfsuamb",
}],
# device 2
"test_dev2": [{
"devname": "isjjwtid",
"options": "smlqfxrg",
}],
}],
device_obj={
"test_dev1": dv1,
"test_dev2": dv2
},
))
print(out)
# check if the command was formed
assert "command" in out[0]["test_dev1"].keys()
assert "command" in out[1]["test_dev2"].keys()
# check if the result was formed
assert "result" in out[0]["test_dev1"].keys()
assert "result" in out[1]["test_dev2"].keys()
# check the rc
assert out[0]["test_dev1"]["rc"] == 0
assert out[1]["test_dev2"]["rc"] == 0