Bug 2049431 - Traffic is dropped on ports if network has port security disabled
Summary: Traffic is dropped on ports if network has port security disabled
Keywords:
Status: CLOSED DEFERRED
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: python-networking-ovn
Version: 16.2 (Train)
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: z4
: 16.2 (Train on RHEL 8.4)
Assignee: Jakub Libosvar
QA Contact: Alex Katz
URL:
Whiteboard:
Depends On:
Blocks: 2090502 2145138
TreeView+ depends on / blocked
 
Reported: 2022-02-02 09:24 UTC by Jaganathan Palanisamy
Modified: 2022-12-06 11:36 UTC (History)
14 users (show)

Fixed In Version: python-networking-ovn-7.4.2-2.20220409154863.el8ost
Doc Type: No Doc Update
Doc Text:
Clone Of:
: 2090502 2145138 (view as bug list)
Environment:
Last Closed: 2022-11-23 10:27:40 UTC
Target Upstream Version:
Embargoed:


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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker OSP-12426 0 None None None 2022-02-02 09:43:17 UTC

Description Jaganathan Palanisamy 2022-02-02 09:24:41 UTC
Description of problem:

Floating ip assignment persisted But connectivity to the geneve tunnel interface (direct) was unsuccessful.We needed to assign security group with icmp allow rule to the geneve port and connectivity was restored. However, offloading the traffic failed as we see packets on representor port via tcpdump. 
For Data traffic also same behavior and we needed to assign a security group with icmp allow rule to the vlan port and connectivity was restored. However, offloading the traffic failed as we see packets on representor port via tcpdump. 

Before migration, there were no security groups assigned to both vlan and vxlan direct ports. We validated the connectivity, traffic were offloaded for both the ports, so expecting the same behavior after migration as well.

we have two issues here,
1. why do we need to attach security group to make it work?
2. Why flows were not offloaded?

We removed security group again from vlan port , connectivity was successful and offloading was successful.

We removed security group again from vxlan port, connectivity was successful and offloading was unsuccessful.



Version-Release number of selected component (if applicable):
Linux kernel: 4.18.0-305.28.1.el8_4.x86_64
RHEL 8.4
openvswitch2.15-2.15.0-38.el8fdp.x86_64
ovn-2021-21.09.0-20.el8fdp.x86_64

How reproducible:

Always


Steps to Reproduce:
1.deploy ml2-ovs hw-offload
2. verify vlan and vxlan connectivity and offloading the traffic.
3.Start the OVN migration
4.Verify step2 again and it fails.

Actual results:
vlan and vxlan connectivity and offloading the traffic were unsuccessful.

Expected results:
vlan and vxlan connectivity and offloading the traffic should be successful after OVN migration successful.

Additional info:

Comment 2 Elvira 2022-02-15 14:18:04 UTC
Hi Haresh,
Could we get an environment with hw-offload to reproduce and fix this? Further talk into the problem would be appreciated too.

Comment 16 Vadim Khitrin 2022-11-23 10:27:40 UTC
Deferring in favor of BZ#2145138.


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