Network Deployment (Distributed operating systems), v8.0 > Establishing high availability > Configure core groups

Configure a core group transport

When you configure a core group, you can specify the type of network transport that you want the high availability manager to use for network communications.

Complete the following actions before you start to configure a core group transport.

Change the transport setting for a core group if the current transport type does not meet your needs. For example, you might need to increase security, you might want to maximize replication throughput, or a core group might need to use the core group bridge service. If a core group needs to use the core group bridge service, select Channel framework as its transport mechanism. If you select Unicast , you might receive error message CHFW0029E, which indicates that the transport chain was not initialized because the address was already in use.

To change the core group transport for a core group, complete the following procedure.


  1. In the admin console, click...

        Servers > Core Groups > Core group settings, and select an existing core group, or click New if you are creating a new core group.

  2. Under Transport type, select the type of transport that you want to use for this core group.

    Deprecated feature: We can select one of the following types of transports. However, if possible, select Channel framework because support for unicast transports is deprecated.depfeat

    • Channel framework is the default transport type, and is a flexible point-to-point transport. If you choose this transport type, also select one of the transport chains that is listed in the Transport chain field.

      • If you select DCS, the high availability manager performs related network communication over non-secure sockets.

      • If you select DCS-Secure, the high availability manager performs related network communication over SSL encrypted sockets.

    • Unicast, is a point-to-point transport over standard non-secure operating system-level TCP/IP network connection facilities.

  3. Click Synchronize changes with nodes, and then click OK.

  4. Select Synchronize changes with nodes , and then click Save again.

  5. Restart the servers containing core group members.


The new transport values are in effect after the servers restart.


Interoperating with v6.0.1.2 processes
Interoperating with v6.0.2 and later processes
Core group transports
Core groups (high availability domains)
Set up a high availability environment


Core group settings


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