Description of problem:

with clusterbot build 4.18,openshift/cluster-network-operator#2442,openshift/ovn-kubernetes#2239

and enable the routeAdvertisements feature in featuregate and CNO

Pod cannot access outside

# oc rsh -n z1 test-rc-wfgm6
~ $ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
^C 

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

How reproducible:

Steps to Reproduce:

1.  Create FRRConfiguration and RouteAdvertisements

# oc get RouteAdvertisements default -o yaml
apiVersion: k8s.ovn.org/v1
kind: RouteAdvertisements
metadata:
  creationTimestamp: "2024-11-21T06:25:52Z"
  generation: 1
  name: default
  resourceVersion: "402886"
  uid: 12aad158-d76d-4f5e-9776-6bbba1e94b4d
spec:
  advertisements:
    egressIP: true
    podNetwork: true
status:
  conditions:
  - lastTransitionTime: "2024-11-21T06:26:09Z"
    message: ovn-kubernetes cluster-manager validated the resource and requested the
      necessary configuration changes
    observedGeneration: 1
    reason: Accepted
    status: "True"
    type: Accepted
  status: Accepted
 


[core@worker-1 ~]$ ip route | grep bgp
10.128.0.0/23 nhid 40 via 192.168.111.20 dev br-ex proto bgp metric 20 
10.128.2.0/23 nhid 43 via 192.168.111.23 dev br-ex proto bgp metric 20 
10.129.0.0/23 nhid 41 via 192.168.111.21 dev br-ex proto bgp metric 20 
10.130.0.0/23 nhid 42 via 192.168.111.22 dev br-ex proto bgp metric 20 
10.131.0.0/23 nhid 44 via 192.168.111.25 dev br-ex proto bgp metric 20 
192.168.111.85 nhid 43 via 192.168.111.23 dev br-ex proto bgp metric 20 
192.168.111.100 nhid 43 via 192.168.111.23 dev br-ex proto bgp metric 20 

2.  Create pod and access outside

# oc rsh -n z1 test-rc-wfgm6 ~ $ ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. ^C  

3.

Actual results:

Expected results:

Additional info:

Please fill in the following template while reporting a bug and provide as much relevant information as possible. Doing so will give us the best chance to find a prompt resolution.

Affected Platforms:

Is it an

1. internal CI failure
2. customer issue / SD
3. internal RedHat testing failure

If it is an internal RedHat testing failure:

• Please share a kubeconfig or creds to a live cluster for the assignee to debug/troubleshoot along with reproducer steps (specially if it's a telco use case like ICNI, secondary bridges or BM+kubevirt).

If it is a CI failure:

• Did it happen in different CI lanes? If so please provide links to multiple failures with the same error instance
• Did it happen in both sdn and ovn jobs? If so please provide links to multiple failures with the same error instance
• Did it happen in other platforms (e.g. aws, azure, gcp, baremetal etc) ? If so please provide links to multiple failures with the same error instance
• When did the failure start happening? Please provide the UTC timestamp of the networking outage window from a sample failure run
• If it's a connectivity issue,
• What is the srcNode, srcIP and srcNamespace and srcPodName?
• What is the dstNode, dstIP and dstNamespace and dstPodName?
• What is the traffic path? (examples: pod2pod? pod2external?, pod2svc? pod2Node? etc)

If it is a customer / SD issue:

• Provide enough information in the bug description that Engineering doesn’t need to read the entire case history.
• Don’t presume that Engineering has access to Salesforce.
• Do presume that Engineering will access attachments through supportshell.
• Describe what each relevant attachment is intended to demonstrate (failed pods, log errors, OVS issues, etc).
• Referring to the attached must-gather, sosreport or other attachment, please provide the following details:
  • If the issue is in a customer namespace then provide a namespace inspect.
  • If it is a connectivity issue:
    • What is the srcNode, srcNamespace, srcPodName and srcPodIP?
    • What is the dstNode, dstNamespace, dstPodName and dstPodIP?
    • What is the traffic path? (examples: pod2pod? pod2external?, pod2svc? pod2Node? etc)
    • Please provide the UTC timestamp networking outage window from must-gather
    • Please provide tcpdump pcaps taken during the outage filtered based on the above provided src/dst IPs
  • If it is not a connectivity issue:
    • Describe the steps taken so far to analyze the logs from networking components (cluster-network-operator, OVNK, SDN, openvswitch, ovs-configure etc) and the actual component where the issue was seen based on the attached must-gather. Please attach snippets of relevant logs around the window when problem has happened if any.

• When showing the results from commands, include the entire command in the output.  
• For OCPBUGS in which the issue has been identified, label with “sbr-triaged”
• For OCPBUGS in which the issue has not been identified and needs Engineering help for root cause, label with “sbr-untriaged”
• Do not set the priority, that is owned by Engineering and will be set when the bug is evaluated
• Note: bugs that do not meet these minimum standards will be closed with label “SDN-Jira-template”
• For guidance on using this template please see
  OCPBUGS Template Training for Networking  components