Hi
Using open vswitches v.2.5.0 with virtualization on Linux/KVM and having
random issues with cross VMs talk and wondering about increasing drops seen on
the switch it self on my hypervisor nodes when similar drops are not really
seen on any VM ports or the physical ports.
netstat
How may I debug this further?
TIA
/Steffen
root@n1:~# dpkg -l | grep vsw
ii openvswitch-common 2.5.0-1 amd64
Open vSwitch common components
ii openvswitch-switch 2.5.0-1 amd64
Open vSwitch switch implementations
# #drops increases on the SW
root@n1:~# date; ifconfig vmbr1
Wed Jun 1 15:09:01 CEST 2016
vmbr1 Link encap:Ethernet HWaddr 00:11:0a:66:4e:e4
BROADCAST MULTICAST MTU:9000 Metric:1
RX packets:0 errors:0 dropped:9772488 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
root@n1:~# date; ifconfig vmbr1
Wed Jun 1 15:09:02 CEST 2016
vmbr1 Link encap:Ethernet HWaddr 00:11:0a:66:4e:e4
BROADCAST MULTICAST MTU:9000 Metric:1
RX packets:0 errors:0 dropped:9772526 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
# phys bond/ethX show now drops, though such is involved in inter VM talk
across Nodes
root@n1:~# date; ifconfig eth8
Wed Jun 1 15:11:59 CEST 2016
eth8 Link encap:Ethernet HWaddr 00:11:0a:66:4e:e4
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:2758913294 errors:0 dropped:0 overruns:0 frame:0
TX packets:3979061228 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2300708314294 (2.0 TiB) TX bytes:3102510622880 (2.8 TiB)
root@n1:~# date; ifconfig eth9
Wed Jun 1 15:12:01 CEST 2016
eth9 Link encap:Ethernet HWaddr 00:11:0a:66:4e:e5
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:5114356820 errors:0 dropped:0 overruns:0 frame:0
TX packets:3989127418 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3992175997619 (3.6 TiB) TX bytes:3082466863348 (2.8 TiB)
root@n1:~# date; ifconfig bond1
Wed Jun 1 15:12:05 CEST 2016
bond1 Link encap:Ethernet HWaddr 6a:53:2e:33:06:94
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
# the switch
root@n1:~# ovs-vsctl show
953aa71d-6533-4571-9b04-15f7f18573cb
Bridge "vmbr1"
Port "vlan20"
tag: 20
Interface "vlan20"
type: internal
Port "vlan21"
tag: 21
Interface "vlan21"
type: internal
Port "vlan13"
tag: 13
Interface "vlan13"
type: internal
Port "vlan12"
tag: 12
Interface "vlan12"
type: internal
Port "fwln400o1"
tag: 41
Interface "fwln400o1"
type: internal
Port "tap400i0"
tag: 40
Interface "tap400i0"
Port "tap400i3"
tag: 43
Interface "tap400i3"
Port "tap400i4"
tag: 44
Interface "tap400i4"
Port "tap400i5"
tag: 45
Interface "tap400i5"
Port "vlan11"
tag: 11
Interface "vlan11"
type: internal
Port "bond1"
Interface "eth9"
Interface "eth8"
Port "tap400i2"
tag: 42
Interface "tap400i2"
Port "vmbr1"
Interface "vmbr1"
type: internal
ovs_version: "2.5.0"
root@n1:~# netstat -in
Kernel Interface table
Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
bond0 9000 0 65539717 0 24137 0 56859469 0 0 0
BMmRU
bond1 9000 0 0 0 0 0 0 0 0 0
BMRU
eth0 9000 0 58985974 0 1 0 56453753 0 0 0
BMsRU
eth4 9000 0 6553743 0 0 0 405716 0 0 0
BMsRU
eth8 9000 0 2763987924 0 0 0 3987144556 0 0
0 BMRU
eth9 9000 0 5124763397 0 0 0 3996885335 0 0
0 BMRU
fwbr400i1 9000 0 535553 0 5 0 0 0 0 0
BMRU
fwln400o1 9000 0 2988634355 0 0 0 2435589574 0 0
0 BMRU
lo 65536 0 453734 0 0 0 453734 0 0 0
LRU
tap400i0 9000 0 418054 0 0 0 230427 0 0 0
BMPRU
tap400i1 9000 0 2435310686 0 0 0 2971548593 0 107
0 BMPRU
tap400i2 9000 0 2631058950 0 0 0 2407994165 0 0
0 BMPRU
tap400i3 9000 0 437467 0 0 0 412371 0 0 0
BMPRU
tap400i4 9000 0 295074 0 0 0 140022 0 0 0
BMPRU
tap400i5 9000 0 592124 0 0 0 598874 0 0 0
BMPRU
vlan11 9000 0 248374 0 20 0 367102 0 0 0
BMRU
vlan12 9000 0 269341 0 20 0 427551 0 0 0
BMRU
vlan13 9000 0 65014527 0 0 0 60678510 0 0 0
BMRU
vlan20 9000 0 9075994 0 0 0 14119348 0 0 0
BMRU
vlan21 9000 0 9263124 0 0 0 14201017 0 0 0
BMRU
vmbr0 9000 0 65363048 0 669710 0 56063960 0 0 0
BMRU
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