How to change the value of vlan ID of existing network ?

Solution In Progress - Updated -

Issue

  • Our overcloud external network was setup to use VLAN provider:segmentation_id: 101 . Last night IT redid the corporate network and switched vlan 101 to vlan 105
    Now none of our instances are reachable. How can I redo the external network to make it all use vlan 105?
  • How to change the value of vlan ID of existing network ?
  • Change neutron network vlan id ?
  • Change neutron provider network vlan ?
[root@rhos7 ~(keystone_admin)]# neutron net-show provider1
+---------------------------+--------------------------------------+
| Field                     | Value                                |
+---------------------------+--------------------------------------+
| admin_state_up            | True                                 |
| id                        | 247d8e7f-872e-4800-96ad-c999703e4962 |
| mtu                       | 0                                    |
| name                      | provider1                            |
| port_security_enabled     | True                                 |
| provider:network_type     | vlan                                 |
| provider:physical_network | pyhsnet1                             |
| provider:segmentation_id  | 101                                  |
| router:external           | False                                |
| shared                    | False                                |
| status                    | ACTIVE                               |
| subnets                   |                                      |
| tenant_id                 | 910e8c8b7875437ab4f091ea2290e563     |
+---------------------------+--------------------------------------+

Environment

  • Red Hat Open Stack

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