SNMP Configuration and Management Manual

TCP/IP Subagent
SNMP Configuration and Management Manual—424777-006
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Traps Generated by the TCP/IP Subagent
represent information about a particular UDP connection are transient. They persist
only as long as the connection in question.
Rebuilding the udpTable also causes the indexes in the tcpConnTable to be updated.
Traps Generated by the TCP/IP Subagent
The TCP/IP Subagent generates traps to inform SNMP managers of the status of the
TCP/IP subnets. The SNMP managers to which the TCP/IP subagent sends traps are
identified by the set of trap destination definitions configured for the SNMP agent with
which the TCP/IP subagent is communicating. See Section 2, Installing and
Configuring the SNMP Agent, for information on configuring trap destinations.
The TCP/IP Subagent monitors the status of the TCP/IP subnets at the time interval
specified in its ztsaStatusCache object. Whenever the status of a subnet changes, the
TCP/IP Subagent sends a trap. The TCP/IP Subagent sends traps only to broadcast
type trap destinations.
Table 8-15 describes traps the TCP/IP Subagent generates. The traps are a subset of
the generic SNMP traps prescribed in RFC 1157.
EMS Support
This subsection describes the Event Management Service (EMS) events, listed in
Table 8-16, generated by the TCP/IP Subagent (subsystem abbreviation ZTSA).
Note. Currently, when managing TCP/IP resources that use an underlying ServerNet LAN
Systems Access (SLSA) subsystem (G-series environment only), the TCP/IP Subagent does
not generate traps.
Table 8-15. Traps Generated by TCP/IP Subagent
Generic Trap Type Reason for Generating Trap
snDown The state of a TCP/IP subnet and the state of the TLAM port used by
the TCP/IP subnet has gone from an operational to a disabled state
(ZCOM-VAL-SUMSTATE-STOPPED).
snUp The state of a TCP/IP subnet and the state of the TLAM port used by
the TCP/IP subnet has gone from a disabled to an operational state
(ZCOM-VAL-SUMSTATE-STARTED).