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openvswitch / ovs-issues

Issue tracker repo for Open vSwitch
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Possibly conflicts with libvirt qos #210

Closed jshen28 closed 3 years ago

jshen28 commented 3 years ago

we are finding that Ovs is deleting tc ingress qdisc ffff: which is used by libvirt for rate limiting. No qos is set on ovs side, any idea why it is happening? thank you.

igsilya commented 3 years ago

Do you have HW offloading configured? OVS may add/del qdiscs while probing/using HW offload.

blp commented 3 years ago

OVS tends to believe that it "owns" QoS on its ports. That makes it clear out any settings that other software puts in. We have a way to avoid that for egress qos (the linux-noop QoS type) but not for ingress QoS. (I think this is a desirable feature to add though.)

jshen28 commented 3 years ago

@igsilya it is a tap device used and all ports are connected to br-int which does not have any hardware interface.