onstat -g ntt Net User Thread Access Times

The onstat -g ntt command displays the global network information plus user thread access times. The output is sorted in reverse order by session ID.

The global network information description can be found at onstat -g imc

global network information:                                                    
  #netscb connects     read    write    q-free  q-limits  q-exceed  alloc/max   slow_DNS
  22/  27     4431   656504   670705    2/   2  240/  10    0/   0     0 / 0        12
                                                                               
Individual thread network information (times):                                 
  netscb thread name    sid       open       read      write address           
                                                                               
14e2a8c0 sqlexec       4448   15:56:35   15:56:36   15:56:36                   
                      04/15/2001                                               
14d6eb18 sqlexec       1458   18:11:16   11:27:30   11:27:30                   
                      04/15/2001                                               
14e2aaf8 sqlexec        125   02:02:30   10:32:43   10:32:43                   
                      04/15/2001                                               
14ee9db0 sqlexec        124   22:10:26   10:31:40   10:31:40                   
142876c0 tlitcplst        8   13:24:37   12:02:03            node1|1529|tlitcp 
                      04/14/2001                                                
14287160 sm_discon        7   13:24:36                                          
                      04/14/2001                                                
14278c28 sm_listen        5   13:24:36                                          
                      04/14/2001                                                
14267b30 tlitcppoll       4   13:24:36                                          
                      04/14/2001                                                
14258018 tlitcppoll       3   13:24:37                                          
                      04/14/2001                                                
1412b490 sm_poll          2   13:24:36                                          
                      04/14/2001                                                

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Individual Thread Network Information

Heading	Description	Format
netscb	The in-memory address of the network session control block.	Hex
thread name	The name of the thread that is currently using this type of connection.	Str
sid	The session ID associated with this connection.
open	The time this connection was opened.
read	The last time a read operation occurred.
write	The last time a write operation occurred.
address	For network listener threads, the host, socket number and protocol being used.
q-free	The current/maximum number of free network buffers since initialization.
q-limits:	The threshold limit for buffers on the free/normal network buffer queues
q-exceed	This indicates the number of times the free-buffer limit has been exceeded followed by the number of times the total buffer limit has been exceeded since server initialization

Notes

The onstat -g ntu command is helpful in identifying at what time particular connections were established to the system.

The timing information can be found via sysnetworkio

slow_DNS is reported when looking at the hostname takes more time than the allotted time in milliseconds to get the info.
By default REPORT_SLOW_DNS_THRESHOLD=200
You can change this value by updating the entry in onconfig. Everytime a hostname lookup takes more than 200 milliseconds it adds 1 to the slow_DNS counter.
The REPORT_SLOW_DNS_FREQUENCY parameter governs how often a warning message will be written to the log when the slow_dns profile element is incremented.