Bug 1558462 - Packet losses are seen on the VM running on one of the compute nodes
Summary: Packet losses are seen on the VM running on one of the compute nodes
Keywords:
Status: CLOSED DUPLICATE of bug 1399987
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-neutron
Version: 9.0 (Mitaka)
Hardware: Unspecified
OS: Unspecified
urgent
urgent
Target Milestone: ---
: ---
Assignee: Jakub Libosvar
QA Contact: Toni Freger
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-03-20 09:27 UTC by Anil Dhingra
Modified: 2023-09-15 01:26 UTC (History)
10 users (show)

Fixed In Version:
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Last Closed: 2018-05-15 13:57:38 UTC
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Embargoed:


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Red Hat Issue Tracker OSP-5005 0 None None None 2022-08-16 09:58:04 UTC

Description Anil Dhingra 2018-03-20 09:27:38 UTC
Description of problem:

All vms dropping packet on compute node1 , spanned a test vm to capture  tcpdump  & packet drops at Bridge/interface level 

Nic cards/patching/switch ports all checks looks ok 

103.7.200.50   - Vm ip                                                                                                                                                                                     103.241.63.30  - source

tap5525a515-f6   -> qbr5525a515-f6  -> qvb5525a515-f6 -> qvo5525a515-f6 ->  br-int -> int-br-prov2 -> phy-br-prov2 -> br-prov2 ->       bond2 ->   switch

we can only see ICMP echo request, seq 20-34 , 52-53, 57-66 on qvb/qvo, but we miss them on tap
tap5525a515-f6  - has no packet loss other interfaces have

we tried to do "brctl setageing qbr5525a515-f6 0" but same result ,Its a compute HA environment ,also moved all vms to other compute & running only 1 vm ,so no load on system .

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


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Comment 3 Anil Dhingra 2018-03-20 10:44:55 UTC
setting ageing to 0 didn't mitigate the issue, is that correct?   - YES 

Does this happen only on this particular compute node? - YES only on compute 1 [myr-eqx-sg-ocpn-01 ]

will request brctl showmacs qbr5525a515-f6

Comment 8 Miguel Angel Ajo 2018-03-22 13:43:17 UTC
Leaving the need info on you anil, since we're actually waiting on the customer info and not engineering input. Let us know when there's feedback from customer.

Comment 17 Red Hat Bugzilla 2023-09-15 01:26:58 UTC
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 365 days


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