extract multi lines fields

We are logging the following application network statistics. I want to be able to index the data into splunk so we can generate reports on it.

The First line consists of the following fields: timestamp, site name, remote server name , local server name

Other lines of the same record consists of the following fields: statistic name : message type : origin Node : statistic Value

This is the actual log:

1386704158913 SITE-A,remoteServer1,localhost receivedMessages:AAA:NODE1:10 receivedMessages:BBB:NODE1:10 sentMessages:CCC:NODE2:10 discMessages:AAA:NODE1:1 discMessages:BBB:NODE2:1

1386704158913 SITE-A,remoteServer2,localhost2 receivedMessages:FFF:NODE1:10 receivedMessages:GGG:NODE1:10 sentMessages:HHH:NODE2:10 discMessages:FFF:NODE1:1 discMessages:III:NODE2:1

Is there a way to extract all the fields above from that log format?

Thanks a lot.