"""NAT utilities library."""
+from math import log2, modf
from pprint import pformat
from enum import IntEnum
:param node: Topology node.
:type node: dict
+ :returns: NAT44 summary data.
+ :rtype: str
"""
- PapiSocketExecutor.run_cli_cmd(node, u"show nat44 summary")
+ return PapiSocketExecutor.run_cli_cmd(node, u"show nat44 summary")
@staticmethod
def show_nat_base_data(node):
:returns: Value of max_translations_per_thread NAT44 parameter.
:rtype: int
"""
- from math import log2, modf
rest, mult = modf(log2(sessions/(10*threads)))
return 2 ** (int(mult) + (1 if rest else 0)) * 10
+ @staticmethod
+ def get_nat44_sessions_number(node, proto):
+ """Get number of established NAT44 sessions from actual NAT44 mapping
+ data.
+
+ :param node: DUT node.
+ :param proto: Required protocol - TCP/UDP/ICMP.
+ :type node: dict
+ :type proto: str
+ :returns: Number of established NAT44 sessions.
+ :rtype: int
+ :raises ValueError: If not supported protocol.
+ """
+ nat44_data = dict()
+ if proto in [u"UDP", u"TCP", u"ICMP"]:
+ for line in NATUtil.show_nat44_summary(node).splitlines():
+ sum_k, sum_v = line.split(u":") if u":" in line \
+ else (line, None)
+ nat44_data[sum_k] = sum_v.strip() if isinstance(sum_v, str) \
+ else sum_v
+ else:
+ raise ValueError(f"Unsupported protocol: {proto}!")
+ return nat44_data.get(f"total {proto.lower()} sessions", 0)
+
# DET44 PAPI calls
# DET44 means deterministic mode of NAT44
@staticmethod
| | ... | ${dut2} | ${out_net} | ${out_mask} | gateway=${dut1_if2_ip4}
| | ... | interface=${DUT2_${int}1}[0]
+| Verify NAT44 TCP sessions number on DUT1 node
+| | [Documentation] | Verify that all required NAT44 TCP sessions are
+| | ... | established on DUT1 node.
+| |
+| | Verify NAT44 sessions number | ${nodes['DUT1']} | ${n_sessions} | TCP
+
+| Verify NAT44 UDP sessions number on DUT1 node
+| | [Documentation] | Verify that all required NAT44 UDP sessions are
+| | ... | established on DUT1 node.
+| |
+| | Verify NAT44 sessions number | ${nodes['DUT1']} | ${n_sessions} | UDP
+
+| Verify NAT44 sessions number
+| | [Documentation] | Verify that all required NAT44 sessions of required
+| | ... | protocol are established.
+| |
+| | ... | *Arguments:*
+| | ... | - node - DUT node. Type: dictionary
+| | ... | - exp_n_sessions - Expected number of NAT44 sessions. Type: integer
+| | ... | - proto - Required protocol. Type: string
+| |
+| | ... | *Example:*
+| |
+| | ... | \| Verify NAT44 sessions number \| ${nodes['DUT1']} \| ${64512} \
+| | ... | \| UDP \|
+| |
+| | [Arguments] | ${node} | ${exp_n_sessions} | ${proto}
+| |
+| | ${nat44_sessions}= | Get NAT44 Sessions Number | ${node} | ${proto}
+| | Should Be Equal As Integers | ${nat44_sessions} | ${exp_n_sessions}
+| | ... | Not all NAT44 ${proto} sessions have been established
+
# DET44 - NAT44 deterministic
| Enable DET44 plugin on DUT
| | [Documentation] | Enable DET44 plugin on DUT.
| Initialize NAT44 deterministic mode in circular topology
| | [Documentation] | Initialization of NAT44 deterministic mode (DET44)
-| | ... | on DUT1.
+| | ... | on DUT1 node.
| |
| | Enable DET44 plugin on DUT | ${dut1}
| | Configure DET44 interfaces
| ${n_hosts}= | ${1024}
| ${n_ports}= | ${63}
| ${n_sessions}= | ${${n_hosts} * ${n_ports}}
+# Ramp-up settings
+| ${ramp_up_rate}= | ${500000}
+| ${ramp_up_duration}= | ${1}
# Traffic profile:
-| ${traffic_profile}= | trex-stl-ethip4udp-1024u63p-udir
+| ${traffic_profile}= | trex-stl-ethip4udp-${n_hosts}u${n_ports}p-udir
*** Keywords ***
| Local Template
| | And Initialize layer interface
| | And Initialize IPv4 forwarding for NAT44 in circular topology
| | And Initialize NAT44 endpoint-dependent mode in circular topology
-| | Then Find NDR and PDR intervals using optimized search
+| | Then Send ramp-up traffic
+| | And Verify NAT44 UDP sessions number on DUT1 node
+| | And Find NDR and PDR intervals using optimized search
| | ... | traffic_directions=${1}
*** Test Cases ***
| ${n_hosts}= | ${16384}
| ${n_ports}= | ${63}
| ${n_sessions}= | ${${n_hosts} * ${n_ports}}
+# Ramp-up settings
+| ${ramp_up_rate}= | ${500000}
+| ${ramp_up_duration}= | ${4.5}
# Traffic profile:
-| ${traffic_profile}= | trex-stl-ethip4udp-16384u63p-udir
+| ${traffic_profile}= | trex-stl-ethip4udp-${n_hosts}u${n_ports}p-udir
*** Keywords ***
| Local Template
| | And Initialize layer interface
| | And Initialize IPv4 forwarding for NAT44 in circular topology
| | And Initialize NAT44 endpoint-dependent mode in circular topology
-| | Then Find NDR and PDR intervals using optimized search
+| | Then Send ramp-up traffic
+| | And Verify NAT44 UDP sessions number on DUT1 node
+| | And Find NDR and PDR intervals using optimized search
| | ... | traffic_directions=${1}
*** Test Cases ***
| ${n_hosts}= | ${262144}
| ${n_ports}= | ${63}
| ${n_sessions}= | ${${n_hosts} * ${n_ports}}
+# Ramp-up settings
+| ${ramp_up_rate}= | ${500000}
+| ${ramp_up_duration}= | ${72.7}
# Traffic profile:
-| ${traffic_profile}= | trex-stl-ethip4udp-262144u63p-udir
+| ${traffic_profile}= | trex-stl-ethip4udp-${n_hosts}u${n_ports}p-udir
# Main heap size multiplicator
| ${heap_size_mult}= | ${3}
| | And Initialize layer interface
| | And Initialize IPv4 forwarding for NAT44 in circular topology
| | And Initialize NAT44 endpoint-dependent mode in circular topology
-| | Then Find NDR and PDR intervals using optimized search
+| | Then Send ramp-up traffic
+| | And Verify NAT44 UDP sessions number on DUT1 node
+| | And Find NDR and PDR intervals using optimized search
| | ... | traffic_directions=${1}
*** Test Cases ***
| ${n_hosts}= | ${4096}
| ${n_ports}= | ${63}
| ${n_sessions}= | ${${n_hosts} * ${n_ports}}
+# Ramp-up settings
+| ${ramp_up_rate}= | ${500000}
+| ${ramp_up_duration}= | ${1.1}
# Traffic profile:
-| ${traffic_profile}= | trex-stl-ethip4udp-4096u63p-udir
+| ${traffic_profile}= | trex-stl-ethip4udp-${n_hosts}u${n_ports}p-udir
*** Keywords ***
| Local Template
| | And Initialize layer interface
| | And Initialize IPv4 forwarding for NAT44 in circular topology
| | And Initialize NAT44 endpoint-dependent mode in circular topology
-| | Then Find NDR and PDR intervals using optimized search
+| | Then Send ramp-up traffic
+| | And Verify NAT44 UDP sessions number on DUT1 node
+| | And Find NDR and PDR intervals using optimized search
| | ... | traffic_directions=${1}
*** Test Cases ***
| ${n_hosts}= | ${65536}
| ${n_ports}= | ${63}
| ${n_sessions}= | ${${n_hosts} * ${n_ports}}
+# Ramp-up settings
+| ${ramp_up_rate}= | ${500000}
+| ${ramp_up_duration}= | ${18.2}
# Traffic profile:
-| ${traffic_profile}= | trex-stl-ethip4udp-65536u63p-udir
+| ${traffic_profile}= | trex-stl-ethip4udp-${n_hosts}u${n_ports}p-udir
# Main heap size multiplicator
| ${heap_size_mult}= | ${2}
| | And Initialize layer interface
| | And Initialize IPv4 forwarding for NAT44 in circular topology
| | And Initialize NAT44 endpoint-dependent mode in circular topology
-| | Then Find NDR and PDR intervals using optimized search
+| | Then Send ramp-up traffic
+| | And Verify NAT44 UDP sessions number on DUT1 node
+| | And Find NDR and PDR intervals using optimized search
| | ... | traffic_directions=${1}
*** Test Cases ***
Code Review / csit.git / commitdiff