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  1. OpenShift Bugs
  2. OCPBUGS-18931

SRIOV Bond0 interface unable to send traffic using testcmd over interface

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      Description of problem:

      Unable to send traffic using the testcmd tool over a Bond sriov interface. However, the ping and curl commands can pass traffic. 

      Version-Release number of selected component (if applicable):

       

      How reproducible:

      Easily

      Steps to Reproduce:

      1. Deploy OCP 4.10.67
      2. Run cnf-gotest sriov bond active active bond test.
      3. Access pods and send traffic
      

      Actual results:

      /var/lib/jenkins/workspace/ocp-cnf-core-tests/cnf-gotests/test/network/sriov/netsriovhelper/netsriovhelper.go:213
      Traffic failed
      Unexpected error:
          <exec.CodeExitError>: {
              Err: <*errors.errorString | 0xc0008f3d30>{
                  s: "command terminated with exit code 1",
              },
              Code: 1,
          }
          command terminated with exit code 1
      occurred
      /var/lib/jenkins/workspace/ocp-cnf-core-tests/cnf-gotests/test/network/sriov/netsriovhelper/sriov_bond_helper.go:177

      Expected results:

      To pass traffic without an error

      Additional info:

      When passing traffic with icmp or curl I see traffic arriving to the otherside. 
      
      05:09:38.767038 IP dns-default.openshift-dns.svc.cluster.local.domain > testpod-jg72m.42067: 59530 NXDomain 0/1/1 (177)
      05:09:43.794164 ARP, Request who-has _gateway tell testpod-jg72m, length 28
      05:09:43.794902 ARP, Reply _gateway is-at 0a:58:0a:83:00:01 (oui Unknown), length 28
      06:06:26.546493 IP6 testpod-jg72m > ff02::2: ICMP6, router solicitation, length 16
      
      [root@testpod-skzx8 /]# ping 192.168.100.1
      PING 192.168.100.1 (192.168.100.1) 56(84) bytes of data.
      64 bytes from 192.168.100.1: icmp_seq=1 ttl=64 time=0.183 ms
      64 bytes from 192.168.100.1: icmp_seq=2 ttl=64 time=0.128 ms
      64 bytes from 192.168.100.1: icmp_seq=3 ttl=64 time=0.111 ms
      64 bytes from 192.168.100.1: icmp_seq=4 ttl=64 time=0.107 ms
      
      
      testcmd command 
      connectivity test failedUDP test failed[root@testpod-skzx8 /]# testcmd -interface bond0 -server 192.168.100.1 -protocol udp -port 6001
      UDP PING 192.168.100.1 1450(1478) bytes of data.
      write udp4 192.168.100.2:52129->192.168.100.1:6001: write: message too long
      write udp4 192.168.100.2:52129->192.168.100.1:6001: write: message too long
      
      [root@testpod-jg72m /]# testcmd -interface bond0 -listen -protocol udp -port 6001

              gkopels@redhat.com Gregory Kopels
              gkopels@redhat.com Gregory Kopels
              Gregory Kopels Gregory Kopels
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                Created:
                Updated:
                Resolved: