Setting up the network for data sharing groups

If just a single data sharing member receives IBM Integrated Synchronization requests at any given time, you need not change your DDVIPA configuration. However, if you have more members, you must add the TIMEDAFFINITY parameter to the relevant VIPADISTRIBUTE statements.

Procedure

  1. Open your TCP/IP configuration data set in a suitable editor.
  2. Add TIMEDAFFNITY 60 to all VIPADISTRIBUTE statements that define connections for IBM Integrated Synchronization.
  3. Save the data set.
    Draft comment: kuester
    Restart of some sort required?

Example

See the following sample extract to guide you through the setup, or copy it to adjust and complete it. If you copy the extract, replace the placeholders with a real netmask, IP addresses, and port numbers. Also delete the ellipses (...):
VIPADEFINE   <ddvipa-netmask> <ddvipa-ip-address>
VIPADISTRIBUTE DEFINE TIMEDAFFINITY 60 <ddvipa-ip-address>
               PORT   <db2-integrated-synchronization-secport>
               DESTIP <db2-member-ip-address-1>
                      <db2-member-ip-address-2>
                      ... 
                       <db2-member-ip-address-n>
VIPABACKUP     1 <ddvipa-ip-address>
VIPADISTRIBUTE DEFINE TIMEDAFFINITY 60 <ddvipa-ip-address>
               PORT   <db2-integrated-synchronization-secport>
               DESTIP <db2-member-ip-address-1>
                      <db2-member-ip-address-2>
                      ... 
                      <db2-member-ip-address-n>

VIPABACKUP     2  <ddvipa-ip-address>
VIPADISTRIBUTE DEFINE TIMEDAFFINITY 60 <ddvipa-ip-address>
               PORT   <db2-integrated-synchronization-secport>
               DESTIP <db2-member-ip-address-1>
                      <db2-member-ip-address-2>
                      ... 
                      <db2-member-ip-address-n>

where:

<ddvipa-netmask>
Is the netmask that applies to the interface on which the DVIPA listens for incoming requests.
<ddvipa-ip-address
Is the IP address the DVIPA uses to listen for incoming requests and from where it distributes the requests to active data sharing members.
<db2-integrated-synchronization-secport>
Is the dedicated secure port (number) defined in the location alias.
<db2-member-ip-address-1> ... <db2-member-ip-address-n>
Are the IP addresses of the data sharing members for which a location alias has been defined and that accept IBM Integrated Synchronization requests.