Given the exhibit below. You are a network manager of your company. You are reading your Syslog serverreports. On the basis of the Syslog message shown， which two descriptions are correct？（）

• A、This is a normal system-generated information message and does not require further investigation.
• B、Service timestamps have been globally enabled.
• C、This message is unimportant and can be ignored.
• D、This message is a level 5 notification message.