IBM SC41-5420-04 manual TCP/IP Host Tables, Display TCP/IP Connection Totals, More

(SNMP). For additional information about SNMP, see resources in the Information Center: Supplemental Manuals.

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 44. 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 45. Display TCP/IP Connection Totals, Display 2 of 2

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, even some small organizations that access the Internet require a DNS server to meet their name-service needs.

50OS/400 TCP/IP Configuration and Reference V5R1