Questions tagged [openstack-neutron]

Neutron is a virtual network service for Openstack. It is an OpenStack project to provide "networking as a service" between interface devices (e.g., vNICs) managed by other Openstack services (e.g., nova).

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Tunnel packets get filtered or stripped off, also certain packets like BGP

I was trying to figure this out for quite some while now. So I am trying my luck here now... I have some VMs that should communicate with non VMs. There are 2 use cases. The first are BareMetal ...
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Openstack Neutron - preserve SIP source port

currently I'm running freeswitch servers on Openstack Ussuri with Neutron linuxbridge. The problem is that the SIP source port got changed from 5080 to random port when sending INVITE to the carriers. ...
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Need to understand how to change ExternalSubnet in an Openstack deployed with Tripleo

Just for background: We finally discovered some devices in the network which factory default, upon reboot and until DHCP assigns their address, to IP addresses in the range that were assigned to the ...
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Enforce policy for update_port:admin_state_up attribute

I'm looking for a way to restrict update of port:admin_state_up attribute only to administrators and OpenStack services, but not port owner? The idea is to block access to network for some VMs that ...
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Delayed creation of default security group for new projects

We run an OpenStack Rocky cluster, with various bits of configuration handled by a Python script directly calling the OpenStack APIs. One of the things this script does is ensure the presence of ...
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28 views

OpenStack Slowness on Centos Stream

I just deployed a new cluster of Openstack Victoria using PackStack on Centos Stream, same hardware but for some reason this new cluster runs terribly slow, from the dashboard to the actual instances (...
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How to Reserve IP for Neutron DHCP Agent Network Namespace?

Is it possible to reserve some IPs from the provider network public pool just for a specific network namespace "DHCP agent Network Namespace"? When they deleted and then created we need to ...
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23 views

How does an OpenStack instance with strict ingress policy still get data from outside?

Here's a scenario: I set up an OpenStack instance with a private IP address, and my security group rules don't have any ingress rules (only egress rules). I can still do wget google.com and get the ...
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Snat not working

Im using centos 8.3 and Usurri. Made the installation following the official tutorial. Everything is working, except the SNAT. From a new instance, when I try to access any external address, it doesn'...
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Cannot create an instance due to failed binding

I'm deploying openstack on 3 nodes (controller, compute and block storage). Each of my nodes have 2 attachements eno1 on the management network and eno2 on a provider network (192.168.3.0/24). I'm ...
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containerized Openstack services

I have a difficulties in the following question: "Does it make sense to containerized/dockerize the openstack controlling services like Neurtron/Cinder/Glance/Keystone server services (neutron-...
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Openstack Instances cant communicate or ping the subnet the controller and compute is on

For some reason i am not able to ping from an instance to the subnet the controller and compute's are on. The network is pretty simple. VM's/Instances: 10.10.2.0/24 Controller/Compute's: 10.10.1.0/24 ...
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Openstack VPNaaS tunnel sharing option

I am currently configuring a VPN using the VPNaaS of neutron. We are setting an IPSec tunnel with an external partner. The communication is established, but he ask me what type of tunnel sharing we ...
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126 views

Openstack instance lost internet access after ataching floating ip

Maybe someone has same problem I have installed Openstack Victoria on two virtualmachines (1 controller node, 1 compute node) running ubuntu 20.04. Each node has two network interfaces, mgmt network ...
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15 views

Openstack SelfService network with IPV6 subnet from provider network

I am installing an openstack infrastructure but i have an issue with the selfservice networks and the ipv6 On my provider network i have the fddd:3138:5d15:18::/64 subnet which is my local server ...
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47 views

Openstack instances cannot access Internet [linuxbridge]

I am having serious issues in the deployment of the Openstack scenario related to the Linux Bridge. This is the scenario: Controller machine: Management Interface enp2s0: 138.100.10.25. Compute ...
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1answer
126 views

neutron-linuxbridge-agent is crashing in Openstack Ussuri

On our new Openstack Ussuri installation neutron-linuxbridge-agent crashes on both compute nodes. The installation followed the instructions for Ubuntu (20.04) at https://docs.openstack.org/install-...
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open vswitch and open virtual network in openstack

I have a local lab which does not have a physical switch and consists of 3 servers which are connected to each other Nics. Now I want to implement vlans, want to know is it possible to setup vlans ...
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30 views

OpenStack Neutron connecting instances to physical external networks?

So I recently tried to deploy a couple of instances and connect them to the external LAN that is also used by the compute nodes to talk to each other and the controller. I've opted for the flat ...
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163 views

Fail to load radvd.service - Router advertisement daemon for IPv6

I'm facing this issue while setting up the neutron, it leading the OpenStack router not working. Below is output from journalctl -xe. Subject: A start job for unit radvd.service has begun execution ...
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1answer
41 views

Openstack cannot access to the controller node from the other network

I've installed the Openstack without any issue. I'm facing the issue that cannot access the controller host from the other network. In my work environment, I have many VLAN configured on Cisco Switch. ...
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64 views

Connection refused [Errno 111] when typing swift start command

When I run the swift start command this error appears HTTPConnectionPool(host='controller', port=8080): Max retries exceeded with url: /v1/AUTH_d17698cf7bbf4dcc8fc59ed6f7b48052 (Caused by ...
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45 views

New compute node with openstack base bundle

In my scenario which is deployed with maas and juju, I have a network 10.10.10.0/24 which is used to deploy openstack base churm bundle. Also the maas and juju are within this network/subnet. Recently ...
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Neutron/DVR promiscuous mode for all instances by default

I have some troubles with OpenStack setup with Neutron/DVR networking. All interfaces promiscuous mode by default, and if some virtual machines in one network run in one hypervisor I see on all ...
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241 views

Tunneling cannot be enabled without the local_ip

I am trying to get an OS instance up&running on my local infrastructure (currently VirtualBox VMs only) using the official install-guides for Debian/Ubuntu as I am running on Debian 10 (Buster). ...
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Does the `ml2_conf.ini` configuration change required a re-population database in Openstack Ussuri?

Im new to Openstack administration. I have a up and running setup of Openstack Ussuri using 1 controller and 1 compute node in lab environment. By following CentOS related guide I have already setup'...
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370 views

Openstack VM build fails with error

I have installed OpenStack Victoria according to the official guide https://docs.openstack.org/install-guide/index.html But if I now start a VM into the public network it fails with an error. The log ...
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424 views

OpenStack instance failed to deploy with error “Failed to bind port”

I've recently been struggling to deploy and instances on our OpenStack environment. Whenever I try to deploy a new instance from horizon, I get the following error message: Error: Failed to perform ...
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122 views

Error: Build of instance c1192e0a-e815-4f4e-b995-05d0c6bd2dfc aborted: Failed to allocate the network(s), not rescheduling?

`enter code here's get this error when building a machine in OpenStack I checked Nova service logs and received this error Error: Build of instance c1192e0a-e815-4f4e-b995-05d0c6bd2dfc aborted: Failed ...
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Openstack: Are components related to a keystone::project auto garbage-collected upon project deletion?

Hello dear community, in the research of how to properly delete projects and their resources via the OpenStack API I was only able to find a hint in the official python sdk, the project_purge.py (...
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38 views

Cannot telnet on specific port to openstack instance from the outside using floating ip

I have an OpenStack instance that can access the internet and I can ssh to it using its assigned floating IP. The security group associated with the instance allows all traffic: allow-any ALLOW IPv4 ...
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15 views

OpenStack single interface install

Good day! I only have one physical port and one public IP address. I installed OpenStack but my guests don't have Internet access. After reading the documentation, I realized that I need to raise a ...
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202 views

OpenStack Stein: Issues connecting to cluster after swapping out NIC on compute node

We've got an OpenStack Stein cluster with 3 controller, 3 compute, and 3 storage nodes. We were having some intermittent network connectivity issues, so on one of the compute nodes, I swapped out the ...
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Neutron FWaaSv2 and Security Group Priority when firewall group applied to router port

I am hoping someone can give me some guidance on fwaasv2 and how it works with security groups when a firewall group is applied to a router port. My initial expectation was that when applied to a ...
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210 views

How to setup octavia when using neutron-openvswitch?

I follow this octavia setup guide: https://docs.openstack.org/octavia/latest/install/install-ubuntu.html But when come to add interface: $ sudo ip link add o-hm0 type veth peer name o-bhm0 $ NETID=$(...
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How to access internet from VM instance in Openstack?

I've been scratching my head for last 5 days, almost went to the end of Internet, read a lot of tutorials, made a lot of re installations an re configurations of openstack but at the and of the day ...
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165 views

openstack installation rally error

I've got a problem throught installation of openstack in a VM Centos7 the error is: [root@localhost ~(keystone_admin)]# rally deployment create --fromenv --name=existing Command failed, please ...
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118 views

Openstack Neutron Hyper-V agent - unable to bind port

I have a fully working system running Rocky that I built using Openstack-Ansible on Ubuntu 18.04. I am using it as a POC to test out for use in my datacenter, which has a large Hyper-V investment. I ...
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OpenStack Hyper-V vSwitch not being selected

I'm updating this, as the original did not get much support. And, I'm not seeing that error anymore since restarting with a fresh install using packstack. To help try to "help you, help me." I am ...
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403 views

openstack shared PCI between numa with SR-IOV

I'm building SR-IOV supported compute node on HP 360g8 hardware and i have Qlogic interface card, my compute node has 32 core & 32GB memory. Problem: when i launch vm-1 (with flavor 16 vCPU core)...
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261 views

Openstack Mitaka - Networking Controller and Compute node on different network Segments

I'm fairly new to Openstack and have very limited insight into Advanced networking concepts. I'm trying to setup a simple Openstack Mitaka setup for work, following the official installation guides. I ...
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1answer
91 views

kolla-build Error installing fluent-plugin-rewrite-tag-filter serverengine requires Ruby version >= 2.1.0

I am using kolla/kolla-ansible 5.0.0 and I just built all the container images and pushed them to my local docker registry. There is one image that kolla fails to build which is the fluentd image. ...
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2k views

Why does “Watchdog: BUG: Soft lockup CPU” errors occur when running openstack containers in docker

I just deployed openstack using kolla and kolla-ansible stable/pike version. I deployed on one control node and one compute node. Both nodes are Dell PowerEdge 2950 servers that are running Centos 7. ...
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2answers
8k views

Cloud-init not finding metadata server (Openstack)

I am trying to understand why my server is failing to connect to the metadata server (and thus not able to log in with the SSH key). Similar problems online seem to be caused by Security Group ...
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1answer
392 views

How to connect to OpenStack instance (Ubuntu LXD Single Machine setup with conjure-up)

I installed Openstack on a single machine on Ubuntu 16.04 following the instructions from https://www.ubuntu.com/download/cloud/try-openstack. I found the LXD IP for Horizon and I'm able to create ...
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1answer
386 views

Openstack Neutron - error creating network - DBError Constraint Failed

I'm having an issue trying to create a network in Openstack Newton, tried with horizon and with the cli and both fail. > openstack network create --project admin --provider-network-type local --...
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36 views

Directing traffic to inactive pool on openstack

We have an openstack setup where a load balancer is directing traffic to the default pool (lets call it green_pool in this case). During deployments we place the new build on the inactive pool (...
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84 views

Configuration for connecting to subnet

I need to connect two virtual subnets. Hare is my topology on openstack: Network Topology There are two routers attached to blue network. First is external router on 192.168.9.1 gateway and second is ...
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101 views

Can openstack neutron integrate with an ethernet tap?

In our use case, we regularly need to capture traffic between every one of our nodes (telecom use, all signaling data is captured for generation of ladder diagrams/problem diagnosis/QoS validation). ...
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1answer
347 views

Openstack installation on Debian 8 networking fails

I'm trying to install Openstack using this manual. I have two virtual nodes: controller1(controller) and cmp1(compute). Both of them have 2 interfaces. Eth0 of both nodes are in same bridge br0 on ...