[ovs-discuss] Package loss on bridge

Benjamin Bendel | acardo group AG bbendel at acardo.com
Wed May 22 12:33:20 UTC 2019


Hello,

so my first message seemed to be broken. So here once again.
In our Openstack Queens Deployment we are experiencing intermittent package loss. Sometimes the Network slows down and packages get lost.
I deployed ovs 2.9 over kolla-ansible during the openstack deployment. I have no idea how to trace down why the packages get dropped and would be very thankful for any help.

Kind Regards

ovs-appctl -t /var/run/openvswitch/ovs-vswitchd.14.ctl dpif/show
system at ovs-system: hit:338068176 missed:1819107
	br-ex:
		br-ex 65534/1: (internal)
		ens2f1 1/2: (system)
		phy-br-ex 2/none: (patch: peer=int-br-ex)
	br-int:
		br-int 65534/3: (internal)
		ha-c31af944-ab 3/5: (internal)
		ha-fe2fee28-cf 4/6: (internal)
		int-br-ex 1/none: (patch: peer=phy-br-ex)
		patch-tun 2/none: (patch: peer=patch-int)
		qg-5a264812-48 7/10: (internal)
		qg-5d18a23e-5e 8/11: (internal)
		qr-008ce727-f1 6/8: (internal)
		qr-be6ee227-0f 5/7: (internal)
		tap428d7875-8c 9/12: (internal)
		tapa51c8a5a-31 10/13: (internal)
		tapa7413e9c-44 11/14: (internal)
	br-tun:
		br-tun 65534/4: (internal)
		patch-int 1/none: (patch: peer=patch-tun)
		vxlan-ac1f0003 3/9: (vxlan: key=flow, local_ip=172.31.0.4, remote_ip=172.31.0.3)
		vxlan-ac1f0008 4/9: (vxlan: key=flow, local_ip=172.31.0.4, remote_ip=172.31.0.8)
		vxlan-ac1f0009 6/9: (vxlan: key=flow, local_ip=172.31.0.4, remote_ip=172.31.0.9)
		vxlan-ac1f000a 2/9: (vxlan: key=flow, local_ip=172.31.0.4, remote_ip=172.31.0.10)
		vxlan-ac1ffffe 5/9: (vxlan: key=flow, local_ip=172.31.0.4, remote_ip=172.31.255.254)

(openvswitch-vswitchd)[root at DIR3 /]# ovs-ofctl dump-ports br-int
OFPST_PORT reply (xid=0x2): 12 ports
  port "tapa7413e9c-44": rx pkts=0, bytes=0, drop=5, errs=0, frame=0, over=0, crc=0
           tx pkts=5, bytes=438, drop=0, errs=0, coll=0
  port "tapa51c8a5a-31": rx pkts=28, bytes=1996, drop=1, errs=0, frame=0, over=0, crc=0
           tx pkts=5, bytes=438, drop=0, errs=0, coll=0
  port LOCAL: rx pkts=0, bytes=0, drop=151909937, errs=0, frame=0, over=0, crc=0
           tx pkts=0, bytes=0, drop=0, errs=0, coll=0
  port  "qg-5d18a23e-5e": rx pkts=185867089, bytes=71203535616, drop=219764, errs=0, frame=0, over=0, crc=0
           tx pkts=51690076, bytes=82190181330, drop=0, errs=0, coll=0
  port  "tap428d7875-8c": rx pkts=3361, bytes=307861, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=80, bytes=14458, drop=0, errs=0, coll=0
  port  "qr-be6ee227-0f": rx pkts=789440, bytes=4805258736, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=1203692, bytes=320738449, drop=0, errs=0, coll=0
  port  "int-br-ex": rx pkts=28735975, bytes=9881136324, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=387195, bytes=145711457, drop=?, errs=?, coll=?
  port  "ha-fe2fee28-cf": rx pkts=256249, bytes=10202344, drop=2, errs=0, frame=0, over=0, crc=0
           tx pkts=175119, bytes=9438822, drop=0, errs=0, coll=0
  port  "qr-008ce727-f1": rx pkts=56837209, bytes=91870990240, drop=2, errs=0, frame=0, over=0, crc=0
           tx pkts=40733451, bytes=32481732299, drop=0, errs=0, coll=0
  port  "qg-5a264812-48": rx pkts=152696122, bytes=49997235177, drop=219932, errs=0, frame=0, over=0, crc=0
           tx pkts=879075, bytes=4822486463, drop=0, errs=0, coll=0
  port  "patch-tun": rx pkts=365456, bytes=241124534, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=28824447, bytes=9974010625, drop=?, errs=?, coll=?
  port  "ha-c31af944-ab": rx pkts=257180, bytes=10245836, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=174190, bytes=9382476, drop=0, errs=0, coll=0


(openvswitch-vswitchd)[root at DIR3 /]# ovs-ofctl dump-ports br-ex
OFPST_PORT reply (xid=0x2): 3 ports
  port LOCAL: rx pkts=0, bytes=0, drop=151464682, errs=0, frame=0, over=0, crc=0
           tx pkts=0, bytes=0, drop=0, errs=0, coll=0
  port  ens2f1: rx pkts=196035955, bytes=76752542905, drop=12978, errs=904, frame=0, over=0, crc=0
           tx pkts=91364083, bytes=89621355468, drop=0, errs=0, coll=0
  port  "phy-br-ex": rx pkts=387219, bytes=145712996, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=28742064, bytes=9883194484, drop=?, errs=?, coll=?



-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 3634 bytes
Desc: image001.png
URL: <http://mail.openvswitch.org/pipermail/ovs-discuss/attachments/20190522/b48baa7d/attachment.png>


More information about the discuss mailing list