Change ipv4 to udp streams in traffic_generation.py for background traffic as well.

[rraghav-cisco]

Description of PR

Summary:
Fixes the udp part mentioned in (issue)

Type of change

• Bug fix
• Testbed and Framework(new/improvement)
• Test case(new/improvement)

Back port request

• 202012
• 202205
• 202305
• 202311
• 202405

Approach

What is the motivation for this PR?

pls see the udp problem mentioned in the bug above.

How did you do it?

I changed the ipv4 streams to UDP streams, and also added more than one stream for cisco platforms.

How did you verify/test it?

Ran it on my T2 TB.

Any platform specific information?

This change is for the cisco-8000, but applies to all platforms.

[wsycqyz]

The PR test stuck. Try to close the PR and re-open the PR.

[rraghav-cisco]

@sdszhang : Pls review.

[sdszhang]

@rraghav-cisco could you please attach the test result for T0/T1 to make sure no regression? Thanks.

[rraghav-cisco]

@sdszhang : I encountered a different issue in single dut run, which I have seen without my changes as well, most likely due to the fact that the multidut entries in variables.py are not applicable to single-dut:

                            if snappi_port['peer_port'] == phy_intf]
                if len(port_ids) != 1:
>                   raise RuntimeError(f"Couldn't find port_ids for matching intf:{phy_intf}. snappi_ports:{snappi_ports}")
E                   RuntimeError: Couldn't find port_ids for matching intf:Ethernet32. snappi_ports:[{'ip': '172.27.145.51', 'card_id': '5', 'port_id': 0, 'peer_port': 'Ethernet0', 'peer_device': 'rdma-m64', 'speed': '100000', 'intf_config_changed': False, 'location': '172.27.145.51;5;4', 'api_server_ip': '172.27.145.51', 'asic_type': 'cisco-8000', 'duthost': <MultiAsicSonicHost rdma-m64>, 'snappi_speed_type': 'speed_100_gbps', 'asic_value': None}, {'ip': '172.27.145.51', 'card_id': '5', 'port_id': 1, 'peer_port': 'Ethernet192', 'peer_device': 'rdma-m64', 'speed': '100000', 'intf_config_changed': False, 'location': '172.27.145.51;5;8', 'api_server_ip': '172.27.145.51', 'asic_type': 'cisco-8000', 'duthost': <MultiAsicSonicHost rdma-m64>, 'snappi_speed_type': 'speed_100_gbps', 'asic_value': None}]

config     = <snappi.snappi.Config object at 0x7f32ea41fc80>
device     = <snappi.snappi.Device object at 0x7f32e9b0cdc0>
dut_mac    = '80:27:6c:de:ae:b8'
duthost    = <MultiAsicSonicHost rdma-m64>
ethernet   = <snappi.snappi.DeviceEthernet object at 0x7f32e9b0cfc0>
gw_addr    = '192.168.0.1'
i          = 1
ip_stack   = <snappi.snappi.DeviceIpv4 object at 0x7f32e9b8af80>
k          = 'Vlan1000'
mac        = '00:11:22:33:44:00'
mg_facts   = {'deployment_id': '1', 'dhcp_servers': ['192.0.0.1', '192.0.0.2', '192.0.0.3', '192.0.0.4'], 'dhcpv6_servers': ['fc02:2000::1', 'fc02:2000::2', 'fc02:2000::3', 'fc02:2000::4'], 'forced_mgmt_routes': ['172.17.0.1/24'], ...}
phy_intf   = 'Ethernet32'
phy_intfs  = ['Ethernet0', 'Ethernet32', 'Ethernet56', 'Ethernet192']
port_config = <SnappiPortConfig id: 0, ip: 192.168.0.2, mac: 00:11:22:33:44:00, gw: 192.168.0.1, gw_mac: 80:27:6c:de:ae:b8,                 prefix_len: 21, type: SnappiPortType.VlanMember, peer_port: Ethernet0>
port_config_list = [<SnappiPortConfig id: 0, ip: 192.168.0.2, mac: 00:11:22:33:44:00, gw: 192.168.0.1, gw_mac: 80:27:6c:de:ae:b8,                 prefix_len: 21, type: SnappiPortType.VlanMember, peer_port: Ethernet0>]
port_id    = 0
port_ids   = []
prefix     = '21'
snappi_ports = [{'api_server_ip': '172.27.145.51', 'asic_type': 'cisco-8000', 'asic_value': None, 'card_id': '5', ...}, {'api_server_ip': '172.27.145.51', 'asic_type': 'cisco-8000', 'asic_value': None, 'card_id': '5', ...}]
v          = {'addr': 'fc02:1000::1', 'attachto': 'Vlan1000', 'mask': '64', 'peer_addr': 'fc02:1000::2', ...}
vlan       = 'Vlan1000'
vlan_facts = {'Vlan1000': {'members': ['Ethernet0', 'Ethernet32', 'Ethernet56', 'Ethernet192'], 'name': 'Vlan1000', 'vlanid': '1000'}}
vlan_intf  = {'Vlan1000': {'addr': '192.168.0.1', 'attachto': 'Vlan1000', 'mask': '255.255.248.0', 'peer_addr': '192.168.0.2', ...}}
vlan_intf_facts = [{'addr': '192.168.0.1', 'attachto': 'Vlan1000', 'mask': '255.255.248.0', 'peer_addr': '192.168.0.2', ...}, {'addr': 'fc02:1000::1', 'attachto': 'Vlan1000', 'mask': '64', 'peer_addr': 'fc02:1000::2', ...}]
vlan_ip_addr = '192.168.0.3'
vlan_ip_addrs = ['192.168.0.2', '192.168.0.3', '192.168.0.4', '192.168.0.5']
vlan_member = {'Vlan1000': ['Ethernet0', 'Ethernet32', 'Ethernet56', 'Ethernet192']}
vlan_subnet = '192.168.0.1/21'

common/snappi_tests/snappi_fixtures.py:233: RuntimeError</failure></testcase></testsuite></testsuites>

After fixing this, it passed:

=========================================================================================================================== PASSES ===========================================================================================================================
______________________________________________________________________________________________________________ test_snappi[multidut_port_info0] ______________________________________________________________________________________________________________
------------------------------------------------------------------------------- generated xml file: /run_logs/ixia/verify-15035/2024-10-29-04-03-10/tr_2024-10-29-04-03-10.xml -------------------------------------------------------------------------------
INFO:root:Can not get Allure report URL. Please check logs
------------------------------------------------------------------------------------------------------------------- live log sessionfinish -------------------------------------------------------------------------------------------------------------------
04:06:39 __init__.pytest_terminal_summary         L0067 INFO   | Can not get Allure report URL. Please check logs
================================================================================================================== short test summary info ===================================================================================================================
PASSED snappi_tests/test_multidut_snappi.py::test_snappi[multidut_port_info0]
========================================================================================================= 1 passed, 4 warnings in 206.54s (0:03:26) ==========================================================================================================
sonic@snappi-m64-202405-sonic-mgmt:/data/tests$ 

[sdszhang]

I just realized that we have skipped the global pause on cisco platform. Do we still need this change in this case?

[rraghav-cisco]

I just realized that we have skipped the global pause on cisco platform. Do we still need this change in this case?

@sdszhang , Yes, this PR is independent of the skip for global pause.

[rraghav-cisco]

@sdszhang : Any comments?

[sdszhang]

I'm not clear on which test case failure will this PR address? Previously it was global pause test case. However global pause is skipped now, any other test case failed because of this issue?

[rraghav-cisco]

Closing this for now, will revisit if needed.