Hi, Could anybody tell me why the bandwidth is so unstable?
Thanks! 在 2016年2月15日，下午8:18，Xiao Ma (xima2) <xi...@cisco.com<mailto:xi...@cisco.com>> 写道： Hi, All I want to use the QoS feature of openvswitch for networks in openstack cloud environment ( neutron in Vlan Mode). I created four virtual machines, test-left1/test-left2 in vlan 1003 and test-right1/test-right2 in vlan 1004. test-left1/right-right1 in host2 and test-left2/test-right2 in host3. And I can see the port created in ovs bridge in host2: ========================================== [root@host2 home]# ovs-vsctl show 5844eda6-56d4-4711-9697-6eef12a53265 Bridge br-int fail_mode: secure Port "qvo583906a4-bb" tag: 1004 Interface "qvo583906a4-bb" Port br-int Interface br-int type: internal Port int-br-inst Interface int-br-inst type: patch options: {peer=phy-br-inst} Port "qvo6d7a3443-4d" tag: 1003 Interface "qvo6d7a3443-4d" Bridge br-inst Port phy-br-inst Interface phy-br-inst type: patch options: {peer=int-br-inst} Port br-inst Interface br-inst type: internal Port "ens1f1" Interface "ens1f1" ovs_version: "2.4.0" ========================================== I tested the bandwidth between left1 and left2 and it’s about 1000M as the physical nic provided. Then I created the qos queue using the command bellow: ovs-vsctl set port ens1f1 qos=@newqos -- --id=@newqos create qos type=linux-htb other-config:max-rate=1000000000 \ queues:1=@queue1 \ queues:2=@queue2 -- \ --id=@queue1 create queue other-config:min-rate=200000000 other-config:max-rate=1000000000 -- \ --id=@queue2 create queue other-config:min-rate=800000000 other-config:max-rate=1000000000 [root@host2 home]# ovs-vsctl list Queue _uuid : 98226a7c-270e-4213-a00f-301f464d8222 dscp : [] external_ids : {} other_config : {max-rate="1000000000", min-rate="200000000"} _uuid : a427ea28-704a-4c5b-8e13-27005d31b0e6 dscp : [] external_ids : {} other_config : {max-rate="1000000000", min-rate="800000000"} _uuid : fee9fb4c-f079-477d-a1dc-c6f717eb29e0 dscp : [] external_ids : {} other_config : {max-rate="1000000000", min-rate="200000000"} _uuid : bcaf0695-3796-4639-ae03-07ccb0d6159d dscp : [] external_ids : {} other_config : {max-rate="1000000000", min-rate="800000000"} The problem is after I created the qos queues, the bandwidth between left1 and left2 became unstable as bellow: Could anybody explain this to me and help me to solve this problem ? Thanks. <未知.png>
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