CICS Transaction Gateway V5 The WebSphere ... - IBM Redbooks

56 CICS Transaction Gateway V5
TCP 9.1.38.39:1072 9.1.38.11:139 ESTABLISHED
TCP 9.1.38.39:1073 9.12.14.8:23 ESTABLISHED
TCP 9.1.38.39:1161 9.12.6.6:23 ESTABLISHED
TCP 9.1.38.39:1186 9.12.6.6:397 ESTABLISHED
TCP 9.1.38.39:1187 9.12.6.6:397 ESTABLISHED
UDP 0.0.0.0:135 *:*
UDP 0.0.0.0:397 *:*
UDP 0.0.0.0:445 *:*
UDP 0.0.0.0:1036 *:*
UDP 0.0.0.0:1185 *:*
UDP 9.1.38.39:137 *:*
UDP 9.1.38.39:138 *:*
UDP 9.1.38.39:500 *:*
This shows that the CICS TG TCP62 function is using the TCP and UDP ports
397 on our workstation (9.1.38.39), and that three sessions are established using
TCP connections with the z/OS system (9.12.6.6).
UDP: Note that AnyNet uses UDP connections for LU 6.2 expedited flows, as
well as for session unbinds and for the AnyNet inactivity timers. Therefore if
you use a firewall to block certain ports, you must open both the TCP and UDP
ports. If you do not open the UDP ports, you will see sessions disconnected
with inactivity, and failures during session unbinds.
Display MVS TCP/IP status
The D TCPIP command issued from SDSF displays the status of TCP/IP on the
z/OS system as shown in Example 3-8.
Example 3-8 Status of TCP/IP
D TCPIP
RESPONSE=SC66
EZAOP50I TCPIP STATUS REPORT 014
COUNT TCPIP NAME VERSION STATUS
----- ---------- -------- ------------------------
1 TCPIPOE CS V1R2 ACTIVE
2 TCPIPMVS CS V1R2 ACTIVE
*** END TCPIP STATUS REPORT ***
EZAOP41I 'DISPLAY TCPIP' COMMAND COMPLETED SUCCESSFULLY
In our example, we were using two TCP/IP stacks on our z/OS system,
TCPIPMVS and TCPIPOE. We used the TCPIPMVS stack with the VTAM
AnyNet feature.
To display the TCP/IP sockets in use by AnyNet, you can use the MVS NETSTAT
command as shown in Example 3-9 on page 57. This will give you the same