Asterisk(*):-
The datetime keyword adds time stamps in the format mmm dd hh:mm:ss, indicating the date and time according to the system clock. If the system clock has not been set, the date and time are preceded by an asterisk (*), which indicates that the date and time have not been set and should be verified.
The no form of the service timestamps command causes messages to be time-stamped in the default format.
Entering the service timestamps form of this command without any keywords or arguments is equivalent to issuing the service timestamps debug uptime form of this command.
Task ID
dot (.):-
The dot means the router has gone out of sync with its configured NTP server and therefore the date/time may be incorrect.
If it only happened for a short period then it may have been a network problem or problem on the NTP server where this router was unable to sync to it. If it is still happening do a "sho ntp assoc detail" and make sure it is in sync with the NTP server (sane/valid). If it isn't then you need to check your NTP server config, or perhaps there's a firewall in between that is blocking the NTP packets.
HTH
Inayath
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