Viewing MSC connection information for IMS-to-IMS TCP/IP communications

You can view configuration and status information for IMS-to-IMS TCP/IP connections that are used for MSC by issuing IMS Connect commands.

Each MSC link requires two socket connections: a send socket connection and a receive socket connection. You display information about the send socket connections by querying RMTIMSCON connection information. You display information about the receive socket connection by querying the port information.

You can also display information about the definition and status of an MSC logical link by querying the MSC configuration information in IMS Connect.

Example: Viewing an MSC TCP/IP connection at the local and remote IMS Connect instances

In the following example, the VIEWRMT command is issued at a local IMS Connect instance for a RMTIMSCON connection, ICON2, that is used by MSC to send messages to the remote IMS installation.
nnVIEWRMT ICON2

The example output shows that two send socket connections, MSCBB435 and MSC84CF7, are in CONN status on the RMTIMSCON connection ICON2. The SENDCLNT IDs are auto-generated by the local IMS Connect instance when establishing the send socket connections to remote IMS Connect instance. In the example, PORT=5555 shows that the local IMS Connect expects the remote IMS Connect to be listening on port 5555. The presence of the LCLPLKID values indicate that these are MSC connections and identify the local MSC physical link that they are using.

HWSC0001I    RMTIMSCON=ICON2     STATUS=ACTIVE                    
HWSC0001I      IP-ADDRESS=009.030.221.055  PORT=5555              
HWSC0001I      HOSTNAME=ECSER14.VMEC.SVL.IBM.COM                        
HWSC0001I      AUTOCONN=N  PERSISTENT=Y                                 
HWSC0001I      IDLETO=0                                                 
HWSC0001I      RESVSOC=2   NUMSOC=2                                     
HWSC0001I      SENDCLNT LCLPLKID STATUS       SECOND SENDPORT     
HWSC0001I      MSCBB435 MSC12    CONN              6 1028         
HWSC0001I      MSC84CF7 MSC12    CONN             56 1027         
HWSC0001I      TOTAL SENDCLNTS=2 RECV=0 CONN=2 XMIT=0 OTHER=0
In the following example, the VIEWPORT command is issued at the local IMS Connect instance for port 9999.
nnVIEWPORT 9999

The example output shows the receive socket connections, MSCC73E0 and MSC0EBB0, that are in RECV state on port 9999 at the local IMS Connect instance. Again, the presence of the LCLPLKID values indicate that these connections are being used for MSC, as well as the local MSC physical link that they are using.

HWSC0001I    PORT=9999     STATUS=ACTIVE     KEEPAV=0 NUMSOC=3      EDIT=       TIMEOUT=0
HWSC0001I      CLIENTID LCLPLKID  STATUS      SECOND CLNTPORT IP-ADDRESS
HWSC0001I      MSCC73E0 MSC12     RECV             6 1026     0:0:0:0:0:FFFF:91E:DD37
HWSC0001I      MSC0EBB0 MSC12     RECV            56 1025     0:0:0:0:0:FFFF:91E:DD37
HWSC0001I      TOTAL CLIENTS=2  RECV=2 READ=0 CONN=0 XMIT=0 OTHER=0

The following examples for a remote IMS Connect instance correspond to the preceding examples for a local IMS Connect instance.

In the following example, the VIEWPORT command is issued for port 5555 at the remote IMS Connect instance.
nnVIEWPORT 5555

The output for the VIEWPORT command shows two receive socket connections, MSCBB435 and MSC84CF7, on port 5555. These CLIENTID values match the SENDCLNT values shown in the preceding example of the VIEWRMT command at the local IMS Connect instance.

HWSC0001I    PORT=5555     STATUS=ACTIVE     KEEPAV=0 NUMSOC=3      EDIT=       TIMEOUT=0
HWSC0001I      CLIENTID LCLPLKID  STATUS      SECOND CLNTPORT IP-ADDRESS
HWSC0001I      MSCBB435 MSC21     RECV            18 1028     0:0:0:0:0:FFFF:91E:7326
HWSC0001I      MSC84CF7 MSC21     RECV            69 1027     0:0:0:0:0:FFFF:91E:7326
HWSC0001I      TOTAL CLIENTS=2  RECV=2 READ=0 CONN=0 XMIT=0 OTHER=0
In the following example, the VIEWRMT command is issued at the remote IMS Connect instance for RMTIMSCON connection, ICON1. 
nnVIEWRMT ICON1

The example output shows that two send socket connections, MSCC73E0 and MSC0EBB0 under SENDCLNT, are in CONN status on the RMTIMSCON connection ICON1. These SENDCLNT values match the CLIENTID values shown in the preceding example of the VIEWPORT command at the local IMS Connect instance. In the example, PORT=9999 shows that the remote IMS Connect expects the local IMS Connect to be listening on port 9999. The presence of the LCLPLKID values indicate that these are MSC connections and identify the local MSC physical link that they are using.

HWSC0001I    RMTIMSCON=ICON1     STATUS=ACTIVE                    
HWSC0001I      IP-ADDRESS=009.030.115.038  PORT=9999              
HWSC0001I      HOSTNAME=ECSER13.VMEC.SVL.IBM.COM                        
HWSC0001I      AUTOCONN=N  PERSISTENT=Y                                 
HWSC0001I      IDLETO=0                                                 
HWSC0001I      RESVSOC=2   NUMSOC=2                                     
HWSC0001I      SENDCLNT LCLPLKID STATUS       SECOND SENDPORT     
HWSC0001I      MSCC73E0 MSC21    CONN             18 1026         
HWSC0001I      MSC0EBB0 MSC21    CONN             69 1025         
HWSC0001I      TOTAL SENDCLNTS=2 RECV=0 CONN=2 XMIT=0 OTHER=0