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[Bug 1997955] Re: neutron_lib.exceptions.InvalidInput: Invalid input for operation: Segmentation ID should be lower or equal to 4095

 

Hello Sharif:

Can you share the document you followed to make this deployment?

ML2/OVN is not supposed to work with ML2/Linux Bridge, so as Lajos
suggested, you should remove the Linux Bridge agents. You can stop the
services and delete the agent references.

About the segmentation ID issue. When using ML2/OVN, there is a
limitation for VXLAN networks described in [1]. Because of the limited
VXLAN NVI space, it leaves only 12 bits to define the segmentation ID.
The NB_Global options:max_tunid defines the maximumn capacity for LS
supported by the setup.

I'm marking this bug as invalid because the issue is a known limitation.

Regards.

[1]https://mail.openvswitch.org/pipermail/ovs-
dev/2020-September/375189.html

** Changed in: neutron
       Status: Incomplete => Invalid

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Title:
  neutron_lib.exceptions.InvalidInput: Invalid input for operation:
  Segmentation ID should be lower or equal to 4095

Status in neutron:
  Invalid

Bug description:
  I am using ubuntu 22.04 lts with openstack yoga. I have followed the
  docs and trying a basic selfservice option. I am not that familiar
  with ovn and hoping to get everything working using the docs in
  openstack

  
  $ openstack network agent list
  +--------------------------------------+------------------------------+-------------+-------------------+-------+-------+---------------------------+
  | ID                                   | Agent Type                   | Host        | Availability Zone | Alive | State | Binary                    |
  +--------------------------------------+------------------------------+-------------+-------------------+-------+-------+---------------------------+
  | 2c5f8c3d-0929-483f-ad2e-f205a13542b6 | Linux bridge agent           | compute1    | None              | :-)   | UP    | neutron-linuxbridge-agent |
  | 4833fd16-e2b3-4310-9519-77eb2e99bf52 | DHCP agent                   | controller1 | nova              | :-)   | UP    | neutron-dhcp-agent        |
  | 4909e7f0-171b-4943-9655-c623a50f0272 | Linux bridge agent           | controller1 | None              | :-)   | UP    | neutron-linuxbridge-agent |
  | 7e04f3df-c463-4462-bacc-0fd926d6f94e | Open vSwitch agent           | controller1 | None              | XXX   | UP    | neutron-openvswitch-agent |
  | d646ace9-8ba4-4e78-91ca-5d0af703c846 | Metadata agent               | controller1 | None              | :-)   | UP    | neutron-metadata-agent    |
  | bbb33d2c-733b-4647-950d-967d16c647bb | OVN Controller agent         | compute1    |                   | XXX   | UP    | ovn-controller            |
  | e8cc2321-e5f9-47be-8969-1b4f4f43830f | OVN Controller Gateway agent | controller1 |                   | XXX   | UP    | ovn-controller            |


  after ovn install verify:

  sudo ovn-sbctl show
  Chassis "bbb33d2c-733b-4647-950d-967d16c647bb"
      hostname: compute1
      Encap vxlan
          ip: "192.168.122.16"
          options: {csum="true"}
      Encap geneve
          ip: "192.168.122.16"
          options: {csum="true"}
  Chassis "e8cc2321-e5f9-47be-8969-1b4f4f43830f"
      hostname: controller1
      Encap geneve
          ip: "10.0.0.154"
          options: {csum="true"}


  I am trying to go through this https://docs.openstack.org/install-
  guide/launch-instance-networks-selfservice.html

  but it does not create the network

  https://paste.opendev.org/show/bKspWZBsAI7EcPXL4Yld/

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