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The information in Figure 53 and Figure 54 shows TCP and UDP counts that are
maintained for Simple Network Management Protocol (SNMP). For additional
information about SNMP, see the
Simple Network Management Protocol (SNMP)
Support
book.
TCP/IP Host Tables
Host tables are a method for mapping host names to IP addresses. This is done by
using a hosts file for name-to-address resolution. Because the host table lacks the
structure to list names in any hierarchical order, names assigned to hosts must be
unique. In the topics that follow, you will find discussions about the overall
management of TCP/IP host tables. Instructions for merging host tables and
managing a host table from a central site are included.
Successful TCP/IP host table maintenance also includes periodically evaluating
whether or not to use a DNS server to manage your network. The DNS server is
often the preferred alternative to host tables for the purpose of managing IP
addresses and host names, particularly in large network environments. However,
Display TCP/IP Connection Totals
System: SYSNAM04
TCP connection information:
Currently established...........: 1
Active opens ...............: 0
Passive opens...............: 0
Attempted opens that failed........: 0
Established and then reset ........: 0
TCP send information:
Segments sent...............: 108
Retransmitted segments ..........: 10
Reset segments ..............: 0
TCP receive information:
Segments received.............: 117
Segments received in error ........: 0
More...
Press Enter to continue.
F3=Exit F5=Refresh F6=Print F12=Cancel
Figure 53. Display TCP/IP Connection Totals, Display 1 of 2
Display TCP/IP Connection Totals
System: SYSNAM04
UDP send information:
Datagrams sent ..............: 0
UDP receive information:
Datagrams received ............: 0
Datagrams not delivered..........: 0
Application port not found .......: 0
Other datagrams in error ........: 0
Figure 54. Display TCP/IP Connection Totals, Display 2 of 2
72 OS/400 TCP/IP Configuration and Reference V4R4