Is there a way to find out if a network outage occurred from logs?

view full story

http://unix.stackexchange.com – I have a red hat server running an oracle database. I can see in oracles rdbms' alert logs that a network outage of some sort occurred. ORA-16198: Timeout incurred on internal channel during remote archival LGWR: Network asynch I/O wait error 16198 log 3 service I want to know if the server registered something similar. I'm looking for NIC failures or simply a disconnection from the switch. Note that the outage was temporary. I can access the server through ssh and I can ping the database service and the server itself, so my only way to tell that something happened is from logs. Where ca (HowTos)