9:06 p.m.
Hello,
I have a oVirt installation with 6 CentOS 6.4 hosts. Some (not all) hosts are receiving
these error messages, at a frequency of once every other minute:
[root@vhost1 ~]# grep "source address" /var/log/messages | tail
Aug 17 11:19:20 vhost1 kernel: em1: received packet with own address as source address
Aug 17 11:21:24 vhost1 kernel: em1: received packet with own address as source address
Aug 17 11:23:29 vhost1 kernel: em1: received packet with own address as source address
Aug 17 11:25:34 vhost1 kernel: em1: received packet with own address as source address
Aug 17 11:27:39 vhost1 kernel: em1: received packet with own address as source address
Aug 17 11:29:44 vhost1 kernel: em1: received packet with own address as source address
Aug 17 11:31:49 vhost1 kernel: em1: received packet with own address as source address
Aug 17 11:33:54 vhost1 kernel: em1: received packet with own address as source address
Aug 17 11:35:59 vhost1 kernel: em1: received packet with own address as source address
Aug 17 11:38:04 vhost1 kernel: em1: received packet with own address as source address
These error messages are accompanied with loss of connectivity, with duration varies
between a few seconds to minutes. The loss of connectivity would start just before the
above error message.
I don't *think* it's hardware because the "received packet with own
address" error message would disappear from one of the hosts after a while. These
error messages are also present whether or not any VM is running on the particular host.
Here are some configurations:
[root@vhost1 ~]# ifconfig
em1 Link encap:Ethernet HWaddr aa:bb:cc:dd:ee:f1
inet6 addr: aaaa::bbbb:cccc:dddd:eee1/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:37413202 errors:0 dropped:0 overruns:0 frame:0
TX packets:17822315 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:32444347931 (30.2 GiB) TX bytes:13715272213 (12.7 GiB)
Interrupt:16
em2 Link encap:Ethernet HWaddr aa:bb:cc:dd:ee:f2
inet6 addr: aaaa::bbbb:cccc:dddd:eee2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:21878 errors:0 dropped:0 overruns:0 frame:0
TX packets:526 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1598070 (1.5 MiB) TX bytes:40526 (39.5 KiB)
Interrupt:17
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:49 errors:0 dropped:0 overruns:0 frame:0
TX packets:49 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9236 (9.0 KiB) TX bytes:9236 (9.0 KiB)
ovirtmgmt Link encap:Ethernet HWaddr aa:bb:cc:dd:ee:f1
inet addr:xxx.xxx.xxx.xxx Bcast:xxx.xxx.xxx.yyy Mask:255.255.255.0
inet6 addr: aaaa::bbbb:cccc:dddd:eeee/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22623881 errors:0 dropped:0 overruns:0 frame:0
TX packets:9990988 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:28427312067 (26.4 GiB) TX bytes:13112553784 (12.2 GiB)
private_lan Link encap:Ethernet HWaddr aa:bb:cc:dd:ee:f2
inet addr:10.0.1.12 Bcast:10.0.1.255 Mask:255.255.255.0
inet6 addr: aaaa::bbbb:cccc:dddd:eee2/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:19771 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1080512 (1.0 MiB) TX bytes:468 (468.0 b)
[root@vhost1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
DEVICE=em1
ONBOOT=yes
HWADDR=aa:bb:cc:dd:ee:f2
BRIDGE=ovirtmgmt
NM_CONTROLLED=no
UUID=c25b1ad1-9646-4126-9149-be5f68bae36c
DNS2=www.www.www.www
DNS1=www.www.www.www
HOSTNAME=vhost1.mydomain.com
MTU=1500
IPV6INIT=no
[root@vhost1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-ovirtmgmt
DEVICE=ovirtmgmt
ONBOOT=yes
TYPE=Bridge
DELAY=0
IPADDR=xxx.xxx.xxx.xxx
NETMASK=255.255.255.0
GATEWAY=xxx.xxx.xxx.1
BOOTPROTO=none
NM_CONTROLLED=no
UUID=c25b1ad1-9646-4126-9149-be5f68bae36c
DNS2=www.www.www.www
DNS1=www.www.www.www
HOSTNAME=vhost1.mydomain.com
MTU=1500
IPV6INIT=no
[root@vhost1 ~]#
Any help is appreciated.