On Mon, Jun 27, 2022 at 11:55 PM Ales Musil <[email protected]> wrote: > > Hi, > > so I did the suggested test. Setup was HIV1 - ext0 and vm0, HIV2 ext1 and vm1 > > The networks were connected as follow: > - vm0 and vm1 on the same switch > - logical router connected with the "internal" and "external" switch > - "external" switch connected to ext0 and ext1 through localnet > > So the traffic was flowing: > vmX -- LR -- localnet -- extX > > The iperf was running between vm0 - ext1 and vm1 - ext0. > > I have removed the MAC binding for ext0 multiple times to see if it affects the other traffic. > And it actually does not, which is great. > > iperf output from vm0 - ext1: > [ ID] Interval Transfer Bitrate Retr Cwnd > [ 5] 0.00-1.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes
> [ 5] 1.00-2.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 2.00-3.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 3.00-4.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 4.00-5.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 5.00-6.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 6.00-7.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 7.00-8.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 8.00-9.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 9.00-10.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 10.00-11.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 11.00-12.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 12.00-13.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 13.00-14.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 14.00-15.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 15.00-16.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 16.00-17.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 17.00-18.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 18.00-19.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 19.00-20.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 20.00-21.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 21.00-22.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 22.00-23.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 23.00-24.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 24.00-25.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 25.00-26.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 26.00-27.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 27.00-28.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 28.00-29.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 29.00-30.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 30.00-31.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 31.00-32.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 32.00-33.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 33.00-34.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 34.00-35.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 35.00-36.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 36.00-37.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 37.00-38.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 38.00-39.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 39.00-40.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 40.00-41.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 41.00-42.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 42.00-43.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 43.00-44.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 44.00-45.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 45.00-46.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 46.00-47.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 47.00-48.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 48.00-49.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 49.00-50.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 50.00-51.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 51.00-52.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 52.00-53.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 53.00-54.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 54.00-55.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 55.00-56.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 56.00-57.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 57.00-58.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 58.00-59.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 59.00-60.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 60.00-61.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 61.00-62.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 62.00-63.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 63.00-64.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 64.00-65.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 65.00-66.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 66.00-67.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 67.00-68.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 68.00-69.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 69.00-70.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 70.00-71.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 71.00-72.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 72.00-73.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 73.00-74.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 74.00-75.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 75.00-76.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 76.00-77.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 77.00-78.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 78.00-79.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 79.00-80.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 80.00-81.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 81.00-82.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 82.00-83.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 83.00-84.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 84.00-85.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 85.00-86.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 86.00-87.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 87.00-88.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 88.00-89.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 89.00-90.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 90.00-91.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 91.00-92.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 92.00-93.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 93.00-94.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 94.00-95.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 95.00-96.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 96.00-97.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 97.00-98.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 98.00-99.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 99.00-100.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 100.00-101.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 101.00-102.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 102.00-103.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 103.00-104.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 104.00-105.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 105.00-106.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 106.00-107.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 107.00-108.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 108.00-109.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 109.00-110.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 110.00-111.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 111.00-112.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 112.00-113.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 113.00-114.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 114.00-115.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 115.00-116.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 116.00-117.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 117.00-118.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > [ 5] 118.00-119.00 sec 11.9 MBytes 99.6 Mbits/sec 0 290 KBytes > [ 5] 119.00-120.00 sec 12.0 MBytes 101 Mbits/sec 0 290 KBytes > - - - - - - - - - - - - - - - - - - - - - - - - - > [ ID] Interval Transfer Bitrate Retr > [ 5] 0.00-120.00 sec 1.40 GBytes 100 Mbits/sec 0 sender > [ 5] 0.00-120.00 sec 1.40 GBytes 100 Mbits/sec receiver > > iperf output from vm1 - ext0: > [ ID] Interval Transfer Bitrate Retr Cwnd > [ 5] 0.00-1.00 sec 12.0 MBytes 101 Mbits/sec 0 150 KBytes > [ 5] 1.00-2.00 sec 11.9 MBytes 99.6 Mbits/sec 0 150 KBytes > [ 5] 2.00-3.00 sec 12.0 MBytes 101 Mbits/sec 0 150 KBytes > [ 5] 3.00-4.00 sec 11.9 MBytes 99.6 Mbits/sec 127 118 KBytes > [ 5] 4.00-5.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 5.00-6.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 6.00-7.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 7.00-8.00 sec 11.9 MBytes 99.6 Mbits/sec 96 160 KBytes > [ 5] 8.00-9.00 sec 12.0 MBytes 101 Mbits/sec 0 160 KBytes > [ 5] 9.00-10.00 sec 11.9 MBytes 99.6 Mbits/sec 0 160 KBytes > [ 5] 10.00-11.00 sec 11.9 MBytes 99.6 Mbits/sec 118 130 KBytes > [ 5] 11.00-12.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 12.00-13.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 13.00-14.00 sec 11.5 MBytes 96.5 Mbits/sec 3 4.07 KBytes > [ 5] 14.00-15.00 sec 12.4 MBytes 104 Mbits/sec 93 178 KBytes > [ 5] 15.00-16.00 sec 11.9 MBytes 99.6 Mbits/sec 0 178 KBytes > [ 5] 16.00-17.00 sec 12.0 MBytes 101 Mbits/sec 0 178 KBytes > [ 5] 17.00-18.00 sec 11.9 MBytes 99.6 Mbits/sec 0 178 KBytes > [ 5] 18.00-19.00 sec 11.9 MBytes 99.6 Mbits/sec 138 130 KBytes > [ 5] 19.00-20.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 20.00-21.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 21.00-22.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 22.00-23.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 23.00-24.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 24.00-25.00 sec 12.0 MBytes 101 Mbits/sec 96 195 KBytes > [ 5] 25.00-26.00 sec 11.9 MBytes 99.6 Mbits/sec 0 195 KBytes > [ 5] 26.00-27.00 sec 11.9 MBytes 99.6 Mbits/sec 0 195 KBytes > [ 5] 27.00-28.00 sec 12.0 MBytes 101 Mbits/sec 0 195 KBytes > [ 5] 28.00-29.00 sec 11.9 MBytes 99.6 Mbits/sec 0 195 KBytes > [ 5] 29.00-30.00 sec 11.9 MBytes 99.6 Mbits/sec 0 195 KBytes > [ 5] 30.00-31.00 sec 12.0 MBytes 101 Mbits/sec 0 195 KBytes > [ 5] 31.00-32.00 sec 11.9 MBytes 99.6 Mbits/sec 145 225 KBytes > [ 5] 32.00-33.00 sec 12.0 MBytes 101 Mbits/sec 0 225 KBytes > [ 5] 33.00-34.00 sec 11.9 MBytes 99.6 Mbits/sec 0 225 KBytes > [ 5] 34.00-35.00 sec 11.9 MBytes 99.6 Mbits/sec 0 225 KBytes > [ 5] 35.00-36.00 sec 12.0 MBytes 101 Mbits/sec 0 225 KBytes > [ 5] 36.00-37.00 sec 11.9 MBytes 99.6 Mbits/sec 0 225 KBytes > [ 5] 37.00-38.00 sec 11.9 MBytes 99.6 Mbits/sec 0 225 KBytes > [ 5] 38.00-39.00 sec 12.0 MBytes 101 Mbits/sec 0 225 KBytes > [ 5] 39.00-40.00 sec 11.9 MBytes 99.6 Mbits/sec 165 157 KBytes > [ 5] 40.00-41.00 sec 11.9 MBytes 99.6 Mbits/sec 0 157 KBytes > [ 5] 41.00-42.00 sec 12.0 MBytes 101 Mbits/sec 0 157 KBytes > [ 5] 42.00-43.00 sec 11.9 MBytes 99.6 Mbits/sec 0 157 KBytes > [ 5] 43.00-44.00 sec 12.0 MBytes 101 Mbits/sec 131 130 KBytes > [ 5] 44.00-45.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 45.00-46.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 46.00-47.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 47.00-48.00 sec 11.9 MBytes 99.6 Mbits/sec 96 221 KBytes > [ 5] 48.00-49.00 sec 11.9 MBytes 99.6 Mbits/sec 0 221 KBytes > [ 5] 49.00-50.00 sec 12.0 MBytes 101 Mbits/sec 0 221 KBytes > [ 5] 50.00-51.00 sec 11.9 MBytes 99.6 Mbits/sec 0 221 KBytes > [ 5] 51.00-52.00 sec 12.0 MBytes 101 Mbits/sec 0 221 KBytes > [ 5] 52.00-53.00 sec 11.9 MBytes 99.6 Mbits/sec 0 221 KBytes > [ 5] 53.00-54.00 sec 11.9 MBytes 99.6 Mbits/sec 164 155 KBytes > [ 5] 54.00-55.00 sec 12.0 MBytes 101 Mbits/sec 0 155 KBytes > [ 5] 55.00-56.00 sec 11.9 MBytes 99.6 Mbits/sec 0 155 KBytes > [ 5] 56.00-57.00 sec 11.9 MBytes 99.6 Mbits/sec 0 155 KBytes > [ 5] 57.00-58.00 sec 12.0 MBytes 101 Mbits/sec 0 155 KBytes > [ 5] 58.00-59.00 sec 11.9 MBytes 99.6 Mbits/sec 0 155 KBytes > [ 5] 59.00-60.00 sec 11.9 MBytes 99.6 Mbits/sec 0 155 KBytes > [ 5] 60.00-61.00 sec 12.0 MBytes 101 Mbits/sec 114 130 KBytes > [ 5] 61.00-62.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 62.00-63.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 63.00-64.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 64.00-65.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 65.00-66.00 sec 12.0 MBytes 101 Mbits/sec 96 142 KBytes > [ 5] 66.00-67.00 sec 11.9 MBytes 99.6 Mbits/sec 0 142 KBytes > [ 5] 67.00-68.00 sec 11.9 MBytes 99.6 Mbits/sec 0 142 KBytes > [ 5] 68.00-69.00 sec 12.0 MBytes 101 Mbits/sec 0 142 KBytes > [ 5] 69.00-70.00 sec 11.9 MBytes 99.6 Mbits/sec 0 142 KBytes > [ 5] 70.00-71.00 sec 12.0 MBytes 101 Mbits/sec 0 142 KBytes > [ 5] 71.00-72.00 sec 11.9 MBytes 99.6 Mbits/sec 0 142 KBytes > [ 5] 72.00-73.00 sec 11.9 MBytes 99.6 Mbits/sec 105 131 KBytes > [ 5] 73.00-74.00 sec 12.0 MBytes 101 Mbits/sec 0 131 KBytes > [ 5] 74.00-75.00 sec 11.9 MBytes 99.6 Mbits/sec 0 131 KBytes > [ 5] 75.00-76.00 sec 11.9 MBytes 99.6 Mbits/sec 0 131 KBytes > [ 5] 76.00-77.00 sec 12.0 MBytes 101 Mbits/sec 0 131 KBytes > [ 5] 77.00-78.00 sec 11.9 MBytes 99.6 Mbits/sec 0 131 KBytes > [ 5] 78.00-79.00 sec 11.9 MBytes 99.6 Mbits/sec 97 229 KBytes > [ 5] 79.00-80.00 sec 12.0 MBytes 101 Mbits/sec 0 229 KBytes > [ 5] 80.00-81.00 sec 11.9 MBytes 99.6 Mbits/sec 0 229 KBytes > [ 5] 81.00-82.00 sec 12.0 MBytes 101 Mbits/sec 0 229 KBytes > [ 5] 82.00-83.00 sec 11.9 MBytes 99.6 Mbits/sec 0 229 KBytes > [ 5] 83.00-84.00 sec 11.9 MBytes 99.6 Mbits/sec 0 229 KBytes > [ 5] 84.00-85.00 sec 12.0 MBytes 101 Mbits/sec 0 229 KBytes > [ 5] 85.00-86.00 sec 11.9 MBytes 99.6 Mbits/sec 170 163 KBytes > [ 5] 86.00-87.00 sec 11.9 MBytes 99.6 Mbits/sec 0 163 KBytes > [ 5] 87.00-88.00 sec 12.0 MBytes 101 Mbits/sec 0 163 KBytes > [ 5] 88.00-89.00 sec 11.9 MBytes 99.6 Mbits/sec 0 163 KBytes > [ 5] 89.00-90.00 sec 11.9 MBytes 99.6 Mbits/sec 0 163 KBytes > [ 5] 90.00-91.00 sec 12.0 MBytes 101 Mbits/sec 0 163 KBytes > [ 5] 91.00-92.00 sec 11.9 MBytes 99.6 Mbits/sec 0 163 KBytes > [ 5] 92.00-93.00 sec 12.0 MBytes 101 Mbits/sec 121 130 KBytes > [ 5] 93.00-94.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 94.00-95.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 95.00-96.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 96.00-97.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 97.00-98.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 98.00-99.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 99.00-100.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 100.00-101.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 101.00-102.00 sec 11.9 MBytes 99.6 Mbits/sec 96 176 KBytes > [ 5] 102.00-103.00 sec 11.9 MBytes 99.6 Mbits/sec 0 176 KBytes > [ 5] 103.00-104.00 sec 12.0 MBytes 101 Mbits/sec 0 176 KBytes > [ 5] 104.00-105.00 sec 11.9 MBytes 99.6 Mbits/sec 0 176 KBytes > [ 5] 105.00-106.00 sec 11.9 MBytes 99.6 Mbits/sec 0 176 KBytes > [ 5] 106.00-107.00 sec 12.0 MBytes 101 Mbits/sec 0 176 KBytes > [ 5] 107.00-108.00 sec 11.9 MBytes 99.6 Mbits/sec 0 176 KBytes > [ 5] 108.00-109.00 sec 11.9 MBytes 99.6 Mbits/sec 0 176 KBytes > [ 5] 109.00-110.00 sec 12.0 MBytes 101 Mbits/sec 0 176 KBytes > [ 5] 110.00-111.00 sec 11.9 MBytes 99.6 Mbits/sec 130 130 KBytes > [ 5] 111.00-112.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 112.00-113.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 113.00-114.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 114.00-115.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 115.00-116.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 116.00-117.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 117.00-118.00 sec 12.0 MBytes 101 Mbits/sec 0 130 KBytes > [ 5] 118.00-119.00 sec 11.9 MBytes 99.6 Mbits/sec 0 130 KBytes > [ 5] 119.00-120.00 sec 12.0 MBytes 101 Mbits/sec 96 237 KBytes > - - - - - - - - - - - - - - - - - - - - - - - - - > [ ID] Interval Transfer Bitrate Retr > [ 5] 0.00-120.00 sec 1.40 GBytes 100 Mbits/sec 2397 sender > [ 5] 0.00-120.00 sec 1.40 GBytes 100 Mbits/sec receiver > > So if you don't have anything against it I would upload v3 which will default to 0, meaning disabled. Thanks Ales for sharing the test result! Looking at the two tests, the one with mac-binding removed periodically (for ext0) had occasional retransmissions and the window size couldn't reach to the peak, while the other one without mac-binding deletion had no restrans and kept window size at the 290KB constantly. However, they end up with the same throughput number, so maybe the disturbance was not significant enough to affect the throughput for this comparison. I wonder if there are more obvious differences if tested with a higher bandwidth environment, e.g. with 10G, 25G or even higher line rate. I will find some time to test this in our data center environment. On the other hand, as mentioned in an earlier reply, if the mac-binding deletions at relatively long intervals doesn't affect overall performance, we shouldn't even need to check the idle_age of OVS flows. It would simplify the implementation a lot by northd checking a timestamp and delete expired entries, without checking idle_age at all. Maintaining the ownership of the mac-binding records and doing all the idle_age checks doesn't seem to provide us any extra benefit, right? Please also see my response to Dumitru's comment below. > > Thanks, > Ales > > On Mon, Jun 27, 2022 at 5:53 PM Dumitru Ceara <[email protected]> wrote: >> >> On 6/24/22 22:56, Han Zhou wrote: >> > On Fri, Jun 24, 2022 at 12:41 PM Numan Siddique <[email protected]> wrote: >> >> >> >> On Fri, Jun 24, 2022 at 11:49 AM Han Zhou <[email protected]> wrote: >> >>> >> >>> On Fri, Jun 24, 2022 at 1:11 AM Ales Musil <[email protected]> wrote: >> >>>> >> >>>> Hi Han, >> >>>> >> >>>> after our discussion I did he suggested test and the throughput does >> > not >> >>> seem to be affected, >> >>>> I did the test with aging set to 2 sec, and during the test period >> > (360 >> >>> sec) the MAC binding was removed multiple times. >> >>>> There were some dropped packets, but the traffic was maintained with >> >>> minimal disturbance. >> >>> >> >>> Thanks for sharing the result! I think different applications may react >> > to >> >>> this kind of disturbance differently. Some may be sensitive to packet >> > loss. >> >>> In addition, I believe this would also incur megaflow cache miss and >> >>> trigger OVS userspace processing in the middle of a flow. >> >>> May I know the traffic pattern of your test? Did you measure with iperf >> >>> during the test? Could share the numbers with v.s. without the drops? >> >>> >> >>> On the other hand, if such random disturbance is not considered harmful >> > for >> >>> some deployment, then I would also question the value of doing all those >> >>> OVS flow idle_age checkings on the *owner* chassis. There can be lots of >> >>> chassis consuming the same mac-binding entry but we are now checking "at >> >>> least one of them is not using the entry recently", which doesn't sound >> > too >> >>> different from just blindly expiring the entries without checking >> > anything, >> >>> and let it recreate if someone still needs it - if the minimal >> > disturbance >> >>> is acceptable in such environment. ovn-northd can do this periodical >> > check >> >>> easily and clean the expired entries, correct? >> >>> >> >>> Thanks, >> >>> Han >> >>> >> >>>> >> >>>> >> >>>> Thanks, >> >>>> Ales >> >>>> >> >>>> On Wed, Jun 22, 2022 at 9:51 AM Ales Musil <[email protected]> wrote: >> >>>>> >> >>>>> >> >>>>> >> >>>>> On Wed, Jun 22, 2022 at 9:21 AM Han Zhou <[email protected]> wrote: >> >>>>>> >> >>>>>> >> >>>>>> >> >>>>>> On Fri, Jun 17, 2022 at 2:08 AM Ales Musil <[email protected]> >> > wrote: >> >>>>>>> >> >>>>>>> Add MAC binding aging mechanism, that >> >>>>>>> should take care of stale MAC bindings. >> >>>>>>> >> >>>>>>> The mechanism works on "ownership" of the >> >>>>>>> MAC binding row. The chassis that creates >> >>>>>>> the row is then checking if the "idle_age" >> >>>>>>> of the flow is over the aging threshold. >> >>>>>>> In that case the MAC binding is removed >> >>>>>>> from database. The "owner" might change >> >>>>>>> when another chassis saw an update of the >> >>>>>>> MAC address. >> >>>>>>> >> >>>>>>> This approach has downside, the chassis >> >>>>>>> that "owns" the MAC binding might not actually be >> >>>>>>> the one that is using it actively. This >> >>>>>>> might lead some delays in packet flow when >> >>>>>>> the row is removed. >> >>>>>>> >> >>>>>> >> >>>>> >> >>>>> Hi Han, thank you for your input. >> >>>>> >> >>>>>> >> >>>>>> Thanks Ales for working on this! The stale entries in MAC_Binding >> > table >> >>> was a big TODO of OVN and a difficult problem. It is great to see a >> >>> solution finally, and I think utilizing the "idle_age" is brilliant. >> > Before >> >>> reviewing it in more detail, I'd like to discuss the "downside" first. >> >>>>>> >> >>>>>> I think the "downside" here is indeed a problem with this approach. >> > The >> >>> MAC binding in OVN is in fact the ARP cache (or neighbour table) of the >> >>> router, but OVN logical router is distributed (except for gateway-router >> >>> and DGP), so in most cases by nature of OVN LR the user of MAC binding >> >>> wouldn't be the one "owns" it. It would be a big dataplane performance >> >>> impact, thinking about a chassis that has a flow with high throughput of >> >>> packets suddenly needs to pause and wait for ovn-controller (and SB DB) >> > to >> >>> complete the ARP resolution process. I saw this being pointed out and >> >>> discussed in the first version, but I'd raise more attention to it, >> > because >> >>> the problem introduced would be much bigger than the stale entries in >> > the >> >>> MAC binding table. >> >>>>>> >> >>>>>> >> >>>>>> I think the proposal from Daniel that transfers owner with "expire >> >>> timestamp" set would help, but I am also thinking that since the logical >> >>> router is distributed, it may be unreasonable to have an owner at all. >> > My >> >>> suggestion is, instead of assigning "owner" for each entry, a central >> >>> controller can just be responsible for checking if any chassis still >> > uses >> >>> the entry and removing it when no one uses it anymore. Naturally the >> >>> central controller can be hosted in ovn-northd. Here is the detailed >> >>> algorithm I am thinking: >> >>>>>> >> >>>>>> * when an entry is created (by any ovn-controller), an >> > expire_timestamp >> >>> is set (e.g. 10 min from now - can be configurable) >> >>>>>> * Each ovn-controller: check the entries it uses and if the >> >>> expire_timestamp of the entry is past, but its own "idle_age" indicates >> > the >> >>> entry is still needed, it will update the SB DB entry with a new >> >>> expire_timestamp. Note: before updating the SB DB, ovn-controller needs >> > a >> >>> random delay, to avoid update storm to SB unnecessarily - in most cases >> >>> only one ovn-controller would update/refresh the SB DB when an entry is >> >>> expired. >> >>>>>> * ovn-northd periodically checks if there are entries with >> >>> expire_timestamp past longer than 1 min (this is related to the random >> >>> delay of ovn-controller, may be configurable, too), it will go ahead and >> >>> delete the entry. >> >>>>>> >> >>>>>> What do you think? >> >>>>> >> >>>>> >> >>>>> This is actually pretty close to the first approach that was >> > suggested >> >>> in the BZ [0] for this. However your suggestion would cause less SB >> > traffic >> >>> which is great. I would be still a bit worried that in case of big >> > setups >> >>> there could be a lot of controllers trying to postpone the deletion of >> > the >> >>> particular MAC binding. We are running some scale tests with the v2 >> > patch >> >>> set, so we should have some answers whether the downside is causing any >> >>> visible troubles. >> >>>>> >> >>>>> I will definitely discuss this suggestion with the rest of the team. >> >>>>> >> >>>>>> >> >>>>>> In addition, such a change may still be risky in large scale >> >>> environments, and I think it worth experimenting first with a knob to >> >>> enable it (and disabled by default). >> >>>>> >> >>>>> >> >>>>> That would be in line with what Mark suggested, a special value that >> >>> disables mac binding e.g. threshold=0, which could be the default. >> >>>>> >> >> +1 for keeping this disabled by default for now. >> >> >> >> >> >> >> Thanks Ales for working on this. I haven't reviewed the patch series. >> >> Jst providing some comments and my 2 cent thoughts >> >> >> >> 1. If it's possible I'd avoid querying OVS to get the flow stats and >> >> determine if a mac binding entry is stale/expired or not. >> >> If there is no other way, then I'm fine with it, >> >> >> >> 2. Before taking that approach we can perhaps explore another way to >> >> do it. My initial thought is: >> >> - Each mac binding is owned by one ovn-controller (probably >> >> the one which learnt it) >> >> - And periodically, it will generate an arp request for the >> >> learnt IP of the mac binding entry. >> >> I think if we go with this approach it's probably desirable that these >> periodic probes are unicast instead of regular broadcast ARP requests. >> We also need that the CMS (or somehow automatically) provisions a unique >> per-chassis source MAC to be used for such packets. >> >> >> - If that mac binding is still intact, we will receive an arp >> >> response. And ovn-controller handling this arp response will mark that >> >> this >> >> mac binding entry as still active. >> >> - If no response, then this mac binding entry is deleted. >> >> >> >> I don't think this can be easy to implement as presently we first >> >> check if have already learnt the mac bindind entry or not (using ovn >> >> action lookup_arp/ lookup_nd) >> >> When we receive the arp response from the mac binding ip, then we >> >> should still send the packet to ovn-controller even if lookup_arp/nd >> >> returns success. >> >> >> >> What do you all think ? Does this seem doable ? >> > >> > Thanks Numan. I think 2) is probably a good way to go. It is different from >> > the idea of deleting the entries not being used, but instead just deleting >> > entries that are not valid any more. In theory it is possible that there >> > will still be lots of valid but unused entries in the DB, but in practice >> > the number of alive end-points are usually limited, so valid but unused >> > entries shouldn't be harmful enough. There is no dataplane concerns with >> > this approach, and the control plane cost also seems not significant, so I >> > think it is something worth trying. >> > >> >> I think that in the end, if we want a solution that works for all cases, >> we probably need to implement both approaches. In essence this seems to >> correspond to implementing mechanisms (1) and (2) from "2.3.2.1 ARP >> Cache Validation" in RFC 1122: >> >> https://datatracker.ietf.org/doc/html/rfc1122#page-22 >> >> Any of these is better than the current behavior so it shouldn't matter >> too much which one we take first as long as there's no dataplane impact. >> Thanks Dumitru for the reference. It seems none of the approaches mentioned in the RFC consider if the ARP entry is in use or not. (1) is merely implementing a timeout for each entry (2) is to delete only if the entry is not valid any more (what Numan suggested). I think we can start with (1), with configurable timeout (and 0 means never timeout, like it is today), and (2) is a more advanced approach but also a more complex implementation - we can implement it if (1) is not sufficient for all the use cases. Thanks, Han >> Ales, would it also be possible to test your implementation with >> multiple traffic streams between VIFs (more than 2 MAC_Bindings in use) >> to make sure that openflow changes due to an expiring MAC_Binding do not >> affect unrelated sessions (due to datapath flow recalculation/eviction)? >> >> Thanks, >> Dumitru >> >> > Thanks, >> > Han >> > >> >> >> >> Numan >> >> >> >> >> >> >> >>>>>> >> >>>>>> >> >>>>>> Thanks, >> >>>>>> Han >> >>>>> >> >>>>> >> >>>>> >> >>>>> Thanks, >> >>>>> Ales >> >>>>> >> >>>>> [0] https://bugzilla.redhat.com/2084668#c2 >> >>>>> >> >>>>>> >> >>>>>> >> >>>>>>> The threshold can be configured in >> >>>>>>> NB_global table with key "mac_binding_age_threshold" >> >>>>>>> in seconds with default value being 60. >> >>>>>>> >> >>>>>>> The test case is present as separate patch of the series. >> >>>>>>> >> >>>>>>> Add delay to ARP response processing to prevent >> >>>>>>> race condition between multiple controllers >> >>>>>>> that received the same ARP. >> >>>>>>> >> >>>>>>> Ales Musil (6): >> >>>>>>> Add chassis column to MAC_Binding table >> >>>>>>> Add MAC binding aging mechanism >> >>>>>>> Add stopwatch for MAC binding aging >> >>>>>>> Allow the MAC binding age threshold to be configurable >> >>>>>>> ovn.at: Add test case covering the MAC binding aging >> >>>>>>> pinctrl.c: Add delay after ARP packet >> >>>>>>> >> >>>>>>> controller/automake.mk | 4 +- >> >>>>>>> controller/mac-binding-aging.c | 241 >> >>> +++++++++++++++++++++++++++++++++ >> >>>>>>> controller/mac-binding-aging.h | 32 +++++ >> >>>>>>> controller/ovn-controller.c | 32 +++++ >> >>>>>>> controller/pinctrl.c | 73 ++++++++-- >> >>>>>>> northd/northd.c | 12 ++ >> >>>>>>> northd/ovn-northd.c | 2 +- >> >>>>>>> ovn-nb.xml | 5 + >> >>>>>>> ovn-sb.ovsschema | 6 +- >> >>>>>>> ovn-sb.xml | 5 + >> >>>>>>> tests/ovn.at | 212 >> > +++++++++++++++++++++++++++-- >> >>>>>>> 11 files changed, 595 insertions(+), 29 deletions(-) >> >>>>>>> create mode 100644 controller/mac-binding-aging.c >> >>>>>>> create mode 100644 controller/mac-binding-aging.h >> >>>>>>> >> >>>>>>> -- >> >>>>>>> 2.35.3 >> >>>>>>> >> >>>>>>> _______________________________________________ >> >>>>>>> dev mailing list >> >>>>>>> [email protected] >> >>>>>>> https://mail.openvswitch.org/mailman/listinfo/ovs-dev >> >>>>> >> >>>>> >> >>>>> >> >>>>> -- >> >>>>> >> >>>>> Ales Musil >> >>>>> >> >>>>> Senior Software Engineer - OVN Core >> >>>>> >> >>>>> Red Hat EMEA >> >>>>> >> >>>>> [email protected] IM: amusil >> >>>> >> >>>> >> >>>> >> >>>> -- >> >>>> >> >>>> Ales Musil >> >>>> >> >>>> Senior Software Engineer - OVN Core >> >>>> >> >>>> Red Hat EMEA >> >>>> >> >>>> [email protected] IM: amusil >> >>> _______________________________________________ >> >>> dev mailing list >> >>> [email protected] >> >>> https://mail.openvswitch.org/mailman/listinfo/ovs-dev >> >>> >> > _______________________________________________ >> > dev mailing list >> > [email protected] >> > https://mail.openvswitch.org/mailman/listinfo/ovs-dev >> > >> > > > -- > > Ales Musil > > Senior Software Engineer - OVN Core > > Red Hat EMEA > > [email protected] IM: amusil _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
