I am having the same error, actually I am not sure if its valid or not keeps going from the link status to site MTB has changed to active to the link status to site MTB is degraded at this time and back. I attached the log files not sure where to go from here note that this started after the SP1 install.
rcmctrl.log
ReplicationLinkAnalysis.log
SMS_REPLICATION_CONFIGURATION_MONITOR.txt