can't ping gateway from new launched instances

asked 2017-03-02 06:12:55 -0500

SHAN gravatar image

:19:15 I build a local openstack platform, using grizzly version and VLAN network type, It works fine for nearly 2 years, but recently, there is a problem , when I start a new instance, it can get the ip and gateway, but the network didn't work, the new virtual machine can't ping the gateway, but it can ping the other vms in the same subnet, while the former launched vm works fine. Do you have any ideas ?

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