[SLE] /var/log/messages, kernel messages, what is this ?



Hi All,

In my /var/log/messages, these messages keeps appearing:
Sep 30 18:01:18 SoliD kernel:
b5:ad:12:d9:3f:d5:a3:9a:c1:d9:b2:fb:e0:a8:ab:bb:
Sep 30 18:01:18 SoliD kernel: 28:5d:d1:4e:56:0c:da:4d:
Sep 30 18:01:18 SoliD kernel: bc:19:d7:53:bd:db:92:53:
Sep 30 18:01:18 SoliD kernel:
ab:21:40:9d:be:b2:17:91:bc:99:88:ef:e8:23:99:f7:
Sep 30 18:01:18 SoliD kernel: e8:09:71:33:8f:94:b4:76:
Sep 30 18:01:18 SoliD kernel: 6f:34:4e:e7:a7:60:36:59:
Sep 30 18:01:56 SoliD kernel:
fb:00:34:29:17:9d:b2:15:ff:20:dd:dc:06:10:b5:93:
Sep 30 18:01:56 SoliD kernel: c1:29:be:e7:4a:de:d2:4e:
Sep 30 18:01:56 SoliD kernel: 72:98:6c:b8:14:a6:44:17:

almost twice every minute, 3-8 messages per second.
There seems to be no pattern in the messages.

What could be causing this, and what does these messages really tell ?