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[Bug 2063989] Re: NEUTRON's OVS based VXLAN seems to be unable to access the network


This don't looks like Neutron bug really and more like some
misconfiguration or something like that. If You can't reach metadata
service from Your instance, please check if haproxy service for metadata
was spawned in the router namespace. You need also to check e.g. with
tcpdump where your connection is stopped. That may give you some clue
what and where is wrong.

I am closing this as not a bug in Neutron and recommend You to go the
the openstack-discuss@xxxxxxxxxxxxxxxxxxx mailing list to get support

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

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  NEUTRON's OVS based VXLAN seems to be unable to access the network

Status in neutron:
Status in Ubuntu:

Bug description:
  I found that the cloud host I created cannot connect to the network. The network type is VXLAN, and it cannot even access cloud init
  I used this installation document (partially in Chinese) and it was normal around 2022, but it cannot be used after updating the software source recently.

  The use of VXLAN in cloud hosts has the following faults
  (1) Unable to access network resources other than ICMP (ping), and even curl (This also leads to the inability to use cloud init)
  (2) Sometimes unable to ping for unknown reasons.

  All firewalls and security groups are allowed or closed.

  My network situation is as follows
  Internal (vxlan) Gateway
  Router gateway →
  External (flat) Gateway

  If any other information is needed, I can provide it and hope to fix
  this error.

  system version:ubuntu 22.04 last  version (online )
  openstack Y version

  此错误跟踪器用于文档中的错误,请使用以下内容作为模板,并根据需要删除或添加字段。将 [ ] 转换为 [x] 以复选框:
  - [ ] 这个文档是这样不准确的: ______
  - [X ] 这是一个文档添加请求。
  - [ ] 我对文档进行了修复,可以粘贴到下面,包括示例:输入和输出。


  - 邮件列表:https://lists.openstack.org
   - IRC:OFTC上的“openstack”频道

  发布:20.5.1.dev23 于 2022-03-01 21:07:17
  SHA: 34e97943a8190a33d72458ce39aaa5f82e0855b9
  来源: https://opendev.org/openstack/neutron/src/doc/source/install/
  URL: https://docs.openstack.org/neutron/yoga/install/

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