Where is logging for interface negotiation history?

None of the recommendations allowed me to find the information I requested.

Please advise.

Sophos Support, are you available to advise?

Hi John Woodall 

Please login to advanced shell execute below given command.

cd /log

tail -f applog.log or cat applog.log | grep "interface=port2"

Please share the output to check

Hi John Woodall,

Apologies for delayed response. The link speed of the interface is logged in syslog.log. I have tested in my LAB environment and collected output. 

I disconnected and reconnected the interface Port2 cable to generate this logs. 

# tail -f syslog.log

Feb 10 15:27:29 (none) user.info kernel: [1654705.701319] igb_nm 0000:03:00.0 Port2: igb: Port2 NIC Link is Down
Feb 10 15:27:32 (none) user.info kernel: [1654708.838073] igb_nm 0000:03:00.0 Port2: igb: Port2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None

Thanks,

Harsh Patel.

Hi John Woodall,

Apologies for delayed response. The link speed of the interface is logged in syslog.log. I have tested in my LAB environment and collected output. 

I disconnected and reconnected the interface Port2 cable to generate this logs. 

# tail -f syslog.log

Feb 10 15:27:29 (none) user.info kernel: [1654705.701319] igb_nm 0000:03:00.0 Port2: igb: Port2 NIC Link is Down
Feb 10 15:27:32 (none) user.info kernel: [1654708.838073] igb_nm 0000:03:00.0 Port2: igb: Port2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None

Thanks,

Harsh Patel.

I see the example, but just watching the logs isn't sufficient for history.  The previous answer by another user allows me to see the history of the connection.

Thank you for your input though!

Hi John Woodall,

Using "tail -f" was just an example to catch the log entries, if you are after the history of the speed negotiation, you have to use "cat" or "grep" to see static entries. 

I am glad that your question was answered by the previous post. 

Thanks,