Is it normal for a CMDB Connector for z/OS region to have an UDP port connection shown as open?

Document ID : KB000014349
Last Modified Date : 14/02/2018
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Introduction:

While a CMDB Connector for z/OS region is running an UDP port connection

can be shown as open while the product region is up.

Question:

Is it normal for a CMDB Connector for z/OS region to have an UDP port connection shown as open?

Answer:

If the region's /PARMS group SOCKETS (2nd screen) parm Domain Name Resolution--Use DNR Provided By

has value = SOLVE the UDP port connection is allocated and stays open.

 

When you specify a SOLVE DNR it basically opens up a UDP connection to the DNR servers whereby

those DNR servers communicate back to SOLVE DNR stats/paths/etc. 

Additional Information:

Example (command issued on the CMDB Connector for z/OS region):

SH SOCKETS
N3AF05 TCP/IP INTERFACE IS ACTIVE NAME=SOCKETS PRIMARY=YES IPVERS=4
N3AF03 SOCKET TYPE OWNER CLIENTID LPORT PPORT PEER-IP-ADDRESS
N3AF40 SERVER-NAME
N3AF41 ------ ---- -------- -------- ----- ----- ------------------------------
N3AF04 000057 TCPL 000056 00000001 8181 - -
N3AF04 000058 TCPI 000056 - - - -
N3AF04 000049 UDP DNR 00000000 30792 - -
N11907 *END*