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Consult a single network node flat network configuration problems???????

Time:10-17

A is it created instance (single nic eth0, centos7.5, IP: 172.29.85.14),
Now ready to build in A manual on all in one O version opensatck environment, the environment after the completion of the deployment, dashboard can normal landing (IP: 172.29.85.14),
Create A flat network (network: 172.29.85.0/24, network management: 172.29.85.1), if your configuration subnet is to activate the DHCP, then A immediately unable to ping, SSH connection, also on the dashboard also landed not, then A hard reboot, close the bridge agent (systemctl stop neutron - linuxbridge - agent. Service) can normal into the dashboard, then delete network, restart the bridge agent, everything is back to normal,
When configured subnet don't activate the DHCP, won't appear the situation above, when planning network alone appeared abnormal, don't have to instantiate the instance that step,

CodePudding user response:

Configure the DHCP will create a new namespaces, could it be your local network communication problem with the address, instances are assigned to the DHCP namespaces address pool
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