Bug 1598399
| Summary: | [Netvirt] VM associated to vxlan network is not reachable because of ARP flow missing | ||||||
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| Product: | Red Hat OpenStack | Reporter: | Janki <jchhatba> | ||||
| Component: | opendaylight | Assignee: | Aswin Suryanarayanan <asuryana> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Tomas Jamrisko <tjamrisk> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | high | ||||||
| Version: | 13.0 (Queens) | CC: | aadam, asuryana, joflynn, jschluet, mkolesni, nyechiel | ||||
| Target Milestone: | z2 | Keywords: | Triaged, ZStream | ||||
| Target Release: | 13.0 (Queens) | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | Netvirt | ||||||
| Fixed In Version: | opendaylight-8.3.0-2.el7ost | Doc Type: | Bug Fix | ||||
| Doc Text: |
Some flows were missing from the ARP table and the flow programming generated an error due to a missing group. As a result, L2 failed and affected most of the traffic.
The flow programming now waits for the group to be added. The group is always present and L2 traffic succeeds.
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Story Points: | --- | ||||
| Clone Of: | Environment: |
N/A
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| Last Closed: | 2018-08-29 16:20:16 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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This bug is marked for inclusion in the errata but does not currently contain draft documentation text. To ensure the timely release of this advisory please provide draft documentation text for this bug as soon as possible. If you do not think this bug requires errata documentation, set the requires_doc_text flag to "-". To add draft documentation text: * Select the documentation type from the "Doc Type" drop down field. * A template will be provided in the "Doc Text" field based on the "Doc Type" value selected. Enter draft text in the "Doc Text" field. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2018:2598 |
Created attachment 1456749 [details] karaf logs, data dumps, ovs logs, flows, OS CLI outputs Description of problem: When a VM is attached to vxlan network, its FIP is pingable. Version-Release number of selected component (if applicable): OSP13 + Oxygen How reproducible: sometimes Steps to Reproduce: 1. Deploy ODL + OSP13 2. Create a VM attached to VxLAN network and 1 router 3. Ping FIP of the VM Actual results: Ping doesnot work Expected results: Ping should work Additional info: Initial analysis suggests an ARP flow missing in table=43 for OVS on compute-1 where the VM is hosted. on datdd umps, grep -irn "arp.check.table.43.arp.request" shows we have five entires in config but only 4 in operational ovs logs snippet - sending OFPBAC_BAD_OUT_GROUP error reply to OFPT_FLOW_MOD message