Hi,

We are facing a critical issue. Something happened in our infrastructure and now huge fake tap devices are creating and deleting continuously for some of our compute node. following logs are generating continuously. all the services/VMs are up and running. Due to this, snmp service is not working properly.

after rebooting one compute node the issue resolved but all the compute node we are not unable to restart now. Any idea to resolve the issue without restart the compute node.

# tail -f /var/log/openvswitch/ovs-vswitchd.log 2022-01-10T04:59:10.689Z|679747376|bridge|INFO|bridge br-int: added interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:10.721Z|679747377|bridge|INFO|bridge br-int: added interface tap4129f7f6-2e on port 736 2022-01-10T04:59:10.852Z|679747378|bridge|INFO|bridge br-int: deleted interface tap5219a94c-2c on port 736 2022-01-10T04:59:10.854Z|679747379|bridge|INFO|bridge br-int: deleted interface tap4aac6d99-25 on port 678 2022-01-10T04:59:10.882Z|679747380|bridge|INFO|bridge br-int: added interface tap5219a94c-2c on port 736 2022-01-10T04:59:10.909Z|679747381|bridge|INFO|bridge br-int: added interface tap4aac6d99-25 on port 678 2022-01-10T04:59:11.073Z|679747382|bridge|INFO|bridge br-int: deleted interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:11.074Z|679747383|bridge|INFO|bridge br-int: deleted interface tap4129f7f6-2e on port 736 2022-01-10T04:59:11.100Z|679747384|bridge|INFO|bridge br-int: added interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:11.130Z|679747385|bridge|INFO|bridge br-int: added interface tap4129f7f6-2e on port 736 2022-01-10T04:59:11.287Z|679747386|bridge|INFO|bridge br-int: deleted interface tap5219a94c-2c on port 736 2022-01-10T04:59:11.289Z|679747387|bridge|INFO|bridge br-int: deleted interface tap4aac6d99-25 on port 678 2022-01-10T04:59:11.315Z|679747388|bridge|INFO|bridge br-int: added interface tap5219a94c-2c on port 736 2022-01-10T04:59:11.340Z|679747389|bridge|INFO|bridge br-int: added interface tap4aac6d99-25 on port 678 2022-01-10T04:59:11.459Z|679747390|bridge|INFO|bridge br-int: deleted interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:11.461Z|679747391|bridge|INFO|bridge br-int: deleted interface tap4129f7f6-2e on port 736 2022-01-10T04:59:11.494Z|679747392|bridge|INFO|bridge br-int: added interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:11.518Z|679747393|bridge|INFO|bridge br-int: added interface tap4129f7f6-2e on port 736 2022-01-10T04:59:11.674Z|679747394|bridge|INFO|bridge br-int: deleted interface tap5219a94c-2c on port 736 2022-01-10T04:59:11.676Z|679747395|bridge|INFO|bridge br-int: deleted interface tap4aac6d99-25 on port 678 2022-01-10T04:59:11.704Z|679747396|bridge|INFO|bridge br-int: added interface tap5219a94c-2c on port 736 2022-01-10T04:59:11.733Z|679747397|bridge|INFO|bridge br-int: added interface tap4aac6d99-25 on port 678 2022-01-10T04:59:11.861Z|679747398|bridge|INFO|bridge br-int: deleted interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:11.864Z|679747399|bridge|INFO|bridge br-int: deleted interface tap4129f7f6-2e on port 736 2022-01-10T04:59:11.890Z|679747400|bridge|INFO|bridge br-int: added interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:11.916Z|679747401|bridge|INFO|bridge br-int: added interface tap4129f7f6-2e on port 736 2022-01-10T04:59:12.073Z|679747402|bridge|INFO|bridge br-int: deleted interface tap5219a94c-2c on port 736 2022-01-10T04:59:12.074Z|679747403|bridge|INFO|bridge br-int: deleted interface tap4aac6d99-25 on port 678 2022-01-10T04:59:12.100Z|679747404|bridge|INFO|bridge br-int: added interface tap5219a94c-2c on port 736 2022-01-10T04:59:12.125Z|679747405|bridge|INFO|bridge br-int: added interface tap4aac6d99-25 on port 678 2022-01-10T04:59:12.256Z|679747406|bridge|INFO|bridge br-int: deleted interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:12.257Z|679747407|bridge|INFO|bridge br-int: deleted interface tap4129f7f6-2e on port 736 2022-01-10T04:59:12.290Z|679747408|bridge|INFO|bridge br-int: added interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:12.313Z|679747409|bridge|INFO|bridge br-int: added interface tap4129f7f6-2e on port 736 2022-01-10T04:59:12.450Z|679747410|bridge|INFO|bridge br-int: deleted interface tap5219a94c-2c on port 736 2022-01-10T04:59:12.452Z|679747411|bridge|INFO|bridge br-int: deleted interface tap4aac6d99-25 on port 678 2022-01-10T04:59:12.478Z|679747412|bridge|INFO|bridge br-int: added interface tap5219a94c-2c on port 736 2022-01-10T04:59:12.506Z|679747413|bridge|INFO|bridge br-int: added interface tap4aac6d99-25 on port 678 2022-01-10T04:59:12.626Z|679747414|bridge|INFO|bridge br-int: deleted interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:12.628Z|679747415|bridge|INFO|bridge br-int: deleted interface tap4129f7f6-2e on port 736 2022-01-10T04:59:12.660Z|679747416|bridge|INFO|bridge br-int: added interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:12.688Z|679747417|bridge|INFO|bridge br-int: added interface tap4129f7f6-2e on port 736 2022-01-10T04:59:12.827Z|679747418|bridge|INFO|bridge br-int: deleted interface tap5219a94c-2c on port 736 2022-01-10T04:59:12.828Z|679747419|bridge|INFO|bridge br-int: deleted interface tap4aac6d99-25 on port 678 2022-01-10T04:59:12.855Z|679747420|bridge|INFO|bridge br-int: added interface tap5219a94c-2c on port 736 2022-01-10T04:59:12.883Z|679747421|bridge|INFO|bridge br-int: added interface tap4aac6d99-25 on port 678 2022-01-10T04:59:13.035Z|679747422|bridge|INFO|bridge br-int: deleted interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:13.036Z|679747423|bridge|INFO|bridge br-int: deleted interface tap4129f7f6-2e on port 736 2022-01-10T04:59:13.080Z|679747424|bridge|INFO|bridge br-int: added interface tapa1ce84ba-64 on port 678 2022-01-10T04:59:13.109Z|679747425|bridge|INFO|bridge br-int: added interface tap4129f7f6-2e on port 736

Regards, Munna