The TCP/IP subagent supports SNMP management data from
both standard and Enterprise-specific SNMP Management Information
Base (MIB) modules. The data defined in MIB modules are called MIB
objects. The standard MIB modules are those published by the IETF
in RFCs. Some of the Enterprise-specific MIB objects extend the standard
MIBs by providing additional management information. Other Enterprise-specific
MIB objects provide management information specific to the
z/OS® Communications Server TCP/IP
stack implementation, such as:
- The ability to perform a remote ping request to provide response
time data between two remote hosts.
- Support for TCP/IP stack configuration parameters. The Enterprise-specific
MIB defines several MIB objects that correspond to parameters on Profile
configuration statements such as IPCONFIG, IPCONFIG6, TCPCONFIG,
UDPCONFIG and so on. For some of these MIB objects, an snmp set
command can be issued to remotely change the configured value.
- Retrieval of IBM® 3172 Interconnect
Controller data.
- Retrieval of OSA data.
- Retrieval of dynamic VIPA and sysplex distributor data.
Details of the subagent support for both the standard
and Enterprise-specific MIB data can be found in the SNMP Agent Capabilities
statement, which is installed in the z/OS UNIX file system as file /usr/lpp/tcpip/samples/mvstcpip.caps.
Most of the Enterprise-specific MIB data mentioned in this section
is defined in the IBM MVS™ TCP/IP Enterprise-specific MIB
module. This MIB module is installed in the z/OS UNIX file
system directory /usr/lpp/tcpip/samples as file mvstcpip.mi2.
The TCP/IP subagent supports only the following types
of IP addresses from the INET-ADDRESS-MIB (RFC 4001):
- unknown - Normally used for local or remote IP addresses of TCP
Listeners and UDP endpoints, where the socket has not been bound to
a local IP address.
- ipv4 - IPv4 addresses
- ipv6 - IPv6 addresses, except for link-local
- ipv6z - IPv6 link-local addresses, where the zone index value
is the SNMP interface index of the associated interface.