Requirements for TCP/IP communication protocols

Edit online

Review the following TCP-related requirements before you configure Tivoli Tape Optimizer Monitoring Agent.

Default OMVS segment

To use the TCP/IP communication protocols, a Tivoli Enterprise Monitoring Server on z/OS requires a default OMVS segment. See the z/OS Communications Server IP Configuration Guide for an explanation of how to provide an OMVS segment.

Using the IP.PIPE communication protocol

IP.PIPE is the default protocol for product components. If you choose IP.PIPE as a protocol for the monitoring server and monitoring agent, be aware of the following limitations:
  • The maximum number of IP.PIPE processes per host is 16.
  • IP.IPIPE uses only one physical port per process. Port numbers are allocated using a well-known port allocation algorithm. The first process for a host is assigned port 1918, which is the default.
Important: The same TCP/IP port number must be used on every monitoring server in the enterprise. Also, the monitoring server well-known port cannot be on the TCP/IP reserved port list.

Configuring domain name resolution

If the monitoring server and monitoring agent on a z/OS system are using any IP.* or IP6.* communication protocols for connection, but the IP domain name resolution is not fully configured on the system, you must specify the SYSTCPD DDNAME in the CANSDSST started task (the monitoring server started task).

The Configuration Tool generates the CANSDSST started task with the following commented out lines. Customize the SYSTCPD DDNAME to your environment.

//*SYSTCPD explicitly identifies which data set to use to obtain 
//*the parameters defined by TCPIP.DATA when no GLOBALTCPIPDATA
//*statement is configured. Refer to the IP Configuration Guide
//*for information on the TCPIP.DATA search order. The data set
//*can be any sequential data set or a member of a partitioned
//*data set. TCPIP.SEZAINST(TCPDATA) is the default sample file.
//* TCPIP.TCPPARMS(TCPDATA) is another sample and is created as
//*part of the Installation Verification Program for TCP/IP.
//*Note: Uncomment out this DDNAME and point to your appropriate
//*      TCPDATA library name supported at your site if domain
//*      name resolution is not fully configured.
//*SYSTCPD DD DISP=SHR, 
>//*     DSN=TCPIO.SEZAINST(TCPDATA)
After you finish, copy the procedures to PROCLIB.

Prerequisite for Take Action command forwarding

NetView authentication of z/OS console commands forwarded from the Tivoli Enterprise Portal requires NetView on z/OS V5.2 with APAR OA18449 applied.

Checking for fixes

To make sure you have the latest version of all components, check for any fix packs that might be available. See Support information.