snappi Extension for IxNetwork
This extension allows executing test scripts written using snappi against
IxNetwork, (one of) Keysight's implementation of Open Traffic Generator.
The repository is under active development.
To start contributing, please see contributing.md.
Install on a client
python -m pip install --upgrade "snappi[ixnetwork]"
Start scripting
"""
Configure a raw TCP flow with,
- tx port as source to rx port as destination
- frame count 10000, each of size 128 bytes
- transmit rate of 1000 packets per second
Validate,
- frames transmitted and received for configured flow is as expected
"""
import snappi
# host is IxNetwork API Server
api = snappi.api(location='https://localhost:443', ext='ixnetwork')
# new config
config = api.config()
# port location is chassis-ip;card-id;port-id
tx, rx = (
config.ports
.port(name='tx', location='192.168.0.1;2;1')
.port(name='rx', location='192.168.0.1;2;2')
)
# configure layer 1 properties
ly, = config.layer1.layer1(name='ly')
ly.port_names = [tx.name, rx.name]
ly.speed = ly.SPEED_10_GBPS
ly.media = ly.FIBER
# configure flow properties
flw, = config.flows.flow(name='flw')
# flow endpoints
flw.tx_rx.port.tx_name = tx.name
flw.tx_rx.port.rx_name = rx.name
# enable flow metrics
flw.metrics.enable = True
# configure rate, size, frame count
flw.size.fixed = 128
flw.rate.pps = 1000
flw.duration.fixed_packets.packets = 10000
# configure protocol headers with defaults fields
flw.packet.ethernet().vlan().ipv4().tcp()
# push configuration
api.set_config(config)
# start transmitting configured flows
control_state = api.control_state()
control_state.choice = control_state.TRAFFIC
control_state.traffic.choice = control_state.traffic.FLOW_TRANSMIT
control_state.traffic.flow_transmit.state = control_state.traffic.flow_transmit.START # noqa
res = api.set_control_state(control_state)
if len(res.warnings) > 0:
print("Warnings: {}".format(res.warnings))
# create a query for flow metrics
req = api.metrics_request()
req.flow.flow_names = [flw.name]
# wait for flow metrics to be as expected
while True:
res = api.get_metrics(req)
if all([m.frames_tx == 10000 == m.frames_rx for m in res.flow_metrics]):
break
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