August 2025 - openstack-discuss - lists.openstack.org

[Neutron] - General thoughts on tenancy network MTU
by Karl Kloppenborg 01 Aug '25

01 Aug '25

Hi Neutrinos, I was discussing with a colleague about our MTU settings within our Openstack regions, generally speaking we have a physnet_global_mtu of 1550 with tenancy networks automatically provisioned as 1500 VXLAN. This ends up with VM’s receiving DHCP MTU settings of 1500 which is fine, however reading about yesterday’s discussion on OVN performance, Nguyen’s recommendation was to enable Jumboframes. This got me thinking, what do you set your tenancy and phynet MTU’s to? Very interested to hear about your experiences with running 9k MTU’s on the VM networks etc, what impact this has on OVS/OVN routers and northbound connectivity being 1500. Thanks, Karl. Karl Kloppenborg Chief Technology Officer m: +61 437 239 565 resetdata.com<https://resetdata.com/> [cid:reset_69557fc2-1d63-4932-b5fd-93bd4f39ca7b.png] ResetData supports Mandatory Client Related Financial Disclosures – Scope 3 Emissions Reporting For more information on the phasing of these requirements for business please visit; https://treasury.gov.au/sites/default/files/2024-01/c2024-466491-policy-sta…<https://treasury.gov.au/sites/default/files/2024-01/c2024-466491-policy-sta…> This email transmission is intended only for the addressee / person responsible for delivery of the message to such person and may contain confidential or privileged information. Confidentiality and legal privilege are not waived or lost by reason of mistaken delivery to you, nor may you use, review, disclose, disseminate or copy any information contained in or attached to it. Whilst this email has been checked for viruses, the sender does not warrant that any attachments are free from viruses or other defects. You assume all liability for any loss, damage or other consequences which may arise from opening or using the attachments. If you received this e-mail in error please delete it and any attachments and kindly notify us by immediately sending an email to contact(a)resetdata.com.au<mailto:contact@resetdata.com.au>

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(Ceilometer) Openstack - Kolla-Ansible deployment - Ceilometer (Central & compute) Docker Containers are unhealthy
by TRB PREM KUMAR 01 Aug '25

01 Aug '25

Hi, We have deployed an all-in-one OpenStack server for billing. Now ceilometer containers are unhealthy. Please help us to resolve this issue. Reference Output for reference: trb1@openstack-aio-01:~$ docker ps | grep ceil c53fc69ba42b quay.io/openstack.kolla/ceilometer-compute:2024.2-rocky-9 "dumb-init --single-…" About a minute ago Up About a minute *(unhealthy) * ceilometer_compute 9337af646e0f quay.io/openstack.kolla/ceilometer-central:2024.2-rocky-9 "dumb-init --single-…" 30 minutes ago Up About a minute ( *unhealthy)* ceilometer_central 554c4b8ccd86 quay.io/openstack.kolla/ceilometer-notification:2024.2-rocky-9 "dumb-init --single-…" 4 days ago Up About a minute (healthy) ceilometer_notification *** Logs files are attached for reference. Regards, TRB.

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[neutron] Drivers meeting canceled Friday, August 1st
by Brian Haley 31 Jul '25

31 Jul '25

Hello Neutrinos: I am going to cancel tomorrow's Drivers meetings as there is no agenda. Just a reminder there are still open specs that need review, list is at [0]. Have a nice weekend! -Brian [0] https://review.opendev.org/q/status:open+project:openstack/neutron-specs

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