Hi, all
When I self-compiled the OVS-2.6 from commit:
commit 7a0f907b2393626dac1387617355990eab69aef7
Author: Justin Pettit <jpet...@ovn.org>
Date: Tue Sep 27 10:13:42 2016 -0700
Set release date for 2.6.0.
Signed-off-by: Justin Pettit <jpet...@ovn.org>
Acked-by: Ben Pfaff <b...@ovn.org>
I found that when I using "action=normal", the fdb table will never
learn the mac addr in the packets from the patch port, is it a bug?
This issue lead other problems, all packets to patch port will flooding
to all ports with the same vlan in the bridge, and I see lots of packet
copy.
See below:
# ovs-ofctl show br-int
OFPT_FEATURES_REPLY (xid=0x2): dpid:000072fe77bb5849
n_tables:254, n_buffers:256
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src
mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst
1(vhuffc5b772-c6): addr:00:00:00:00:00:00
config: 0
state: LINK_DOWN
speed: 0 Mbps now, 0 Mbps max
2(patch-tun): addr:7a:85:c5:7d:2f:da
config: 0
state: 0
speed: 0 Mbps now, 0 Mbps max
3(vhu88dab7aa-ae): addr:00:00:00:00:00:00
config: 0
state: LINK_DOWN
speed: 0 Mbps now, 0 Mbps max
8(vhu29e6e817-63): addr:00:00:00:00:00:00
config: 0
state: 0
speed: 0 Mbps now, 0 Mbps max
LOCAL(br-int): addr:72:fe:77:bb:58:49
config: PORT_DOWN
state: LINK_DOWN
current: 10MB-FD COPPER
speed: 10 Mbps now, 0 Mbps max
OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0
# ovs-ofctl show br-tun
OFPT_FEATURES_REPLY (xid=0x2): dpid:00007e58c1f5b141
n_tables:254, n_buffers:256
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src
mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst
1(patch-int): addr:56:36:bb:1e:ec:c7
config: 0
state: 0
speed: 0 Mbps now, 0 Mbps max
5(vxlan-c0a8c80b): addr:26:e9:2b:31:62:8b
config: 0
state: 0
speed: 0 Mbps now, 0 Mbps max
6(vxlan-c0a8c80c): addr:2a:07:0e:84:fd:8e
config: 0
state: 0
speed: 0 Mbps now, 0 Mbps max
LOCAL(br-tun): addr:7e:58:c1:f5:b1:41
config: PORT_DOWN
state: LINK_DOWN
current: 10MB-FD COPPER
speed: 10 Mbps now, 0 Mbps max
OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0
# ovs-vsctl show
57863254-3c79-4dc7-a6a0-277eb8c741f4
Bridge br-dpdk
Port br-dpdk
Interface br-dpdk
type: internal
Port "dpdk0"
Interface "dpdk0"
type: dpdk
Bridge br-int
fail_mode: secure
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port "vhu29e6e817-63"
tag: 1
Interface "vhu29e6e817-63"
type: dpdkvhostuser
Port "vhuffc5b772-c6"
tag: 2
Interface "vhuffc5b772-c6"
type: dpdkvhostuser
Port "vhu88dab7aa-ae"
tag: 1
Interface "vhu88dab7aa-ae"
type: dpdkvhostuser
Port br-int
Interface br-int
type: internal
Bridge br-tun
fail_mode: secure
Port br-tun
Interface br-tun
type: internal
Port "vxlan-c0a8c80b"
Interface "vxlan-c0a8c80b"
type: vxlan
options: {df_default="true", in_key=flow,
local_ip="192.168.200.14", out_key=flow, remote_ip="192.168.200.11"}
Port "vxlan-c0a8c80c"
Interface "vxlan-c0a8c80c"
type: vxlan
options: {df_default="true", in_key=flow,
local_ip="192.168.200.14", out_key=flow, remote_ip="192.168.200.12"}
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
ovs_version: "2.6.0"
Flow Tableļ¼
br-int:
ovs-ofctl add-flow br-int "in_port=2,action=output:8"
ovs-ofctl add-flow br-int "in_port=8,action=output:normal"
br-tun
ovs-ofctl add-flow br-tun
"in_port=1,action=set_tunnel:0x46,strip_vlan,output:6"
ovs-ofctl add-flow br-tun "in_port=6,action=output:1"
VM using port 8(vhu29e6e817-63) as vhost-user port:
(creat hugepage first)
/usr/libexec/qemu-kvm -machine pc,accel=kvm,usb=off -cpu host -m 2048
-smp 2,sockets=2,cores=1,threads=1 -drive
file=/var/lib/nova/instances/_base/0fc2479281ab0a4ca901b7981122a180f843b2bf
-chardev socket,id=charnet0,path=/var/run/openvswitch/vhu29e6e817-63
-netdev type=vhost-user,id=hostnet0,chardev=charnet0 -device
virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:61:23:ed,bus=pci.0,addr=0x3
-object
memory-backend-file,id=ram-node0,prealloc=yes,mem-path=/dev/hugepages/libvirt/qemu,share=yes,size=2147483648,host-nodes=0,policy=bind
-numa node,nodeid=0,cpus=0-1,memdev=ram-node0 -vnc 0.0.0.0:0 -k en-us
-device cirrus-vga,id=video0,bus=pci.0,addr=0x2
In VM ping another VM in other hosts, which using native OVS.
Then find in OVS-DPDK:
# ovs-appctl fdb/show br-int
port VLAN MAC Age
8 1 fa:16:3e:61:23:ed 1
In OVS(another host, port 4 is patch port.):
ovs-appctl fdb/show br-int
port VLAN MAC Age
6 2 fa:16:3e:09:9d:bc 0
4 2 fa:16:3e:61:23:ed 0
This issue will cause packets flooding in br-int.
Any sulotions?
--
Thanks,
Michael
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