WebSphere Application Server Network Deployment, Version 6.0.x     Operating Systems: AIX, HP-UX, Linux, Solaris, Windows

Configuring 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.

Before you begin

You should do the following before you start to configure a core group transport:

Why and when to perform this task

You need to 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 or you might want to maximize replication throughput.

To change the core group transport for a core group:

Steps for this task

  1. In the administrative 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. You can select one of the following types of transports:
    • Channel framework, which is the default transport type. Channel framework is a flexible point-to-point transport. If you choose this transport type, you must also select one of the transport chains that is listed in the Channel chain name 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 Secure Sockets Layer (SSL) encrypted sockets.
    • Unicast, which is a point-to-point transport over standard non-secure operating system-level TCP/IP network connection facilities.
    • Multicast, which is an IP multicast transport. This type of transport broadcasts all information to all of the other processes in the core group. If you choose this transport type, you must also specify:
      • In the Multicast port field, the port number for this multicast transport. The default port is 23445.
      • In the Multicast group IP start field, the first IP address in the range of IP addresses to use for this multicast transport . The default IP address is 239.0.0.0
      • In the Multicast group IP end field, the last IP address in the range of IP addresses to use for this multicast transport . The default IP address is 239.255.255.255.
  3. Click OK, and then click Save.
  4. Select Synchronize changes with nodes, and then click Save again.
  5. Restart the servers containing core group members.

Result

After the servers complete their restart, they all use the new transport.



Sub-topics
Interoperating with Version 6.0.1.2 processes
Interoperating with Version 6.0.2 and later processes

Related concepts
Core group transports
Core groups

Related tasks
Setting up a high availability environment

Related reference
Core group settings

Task topic    

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Last updated: Dec 11, 2005 4:07:15 PM CST
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