You can use the netdiag -s command to view a summary of the various diagnostic checks and tests performed on your storage system.
netdiag -s Physical Layer Diagnostics Summary: Interface H/W Link Configured Speed Duplex AutoNeg Status UP Mismatch Mismatch Mismatch e0a OK - N - - - e0b OK - N - - - e0c OK Y Y N - - e0d OK - N - - - Network Layer Diagnostics Summary: Protocol Status IP OK IPv6 Prob Transport Layer Diagnostics Summary: Protocol Status TCP OK UDP OK Use netdiag without the -s option for details