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

Setting IP addresses for high availability manager communications for V6.0.2 or higher

Situations exist where you must select a preferred IP address, or a range of IP addresses that you want the high availability manager to use for communication within a core group.

Before you begin

Determine the transport protocol the core group associated with the high availability manager uses for communications.

Why and when to perform this task

If the core group is configured to use a point-to-point protocol for its communications, for example, channel framework or unicast, only set a preferred IP address if you want to restrict the high availability manager communications to a specific IP address.

If the core group is configured to use a multicast transport for its communications, you must set a preferred IP address and specify a range of multicast group IP addresses.

Steps for this task

  1. Configure a preferred IP address.
    1. Make a list of all WebSphere Application Server processes on this machine. Include both application server processes and administrative processes, such as node agents or the deployment manager, in this list. If you set a preferred IP address is set for one of the processes on a machine, you must set it for all of the processes on that machine.
    2. Determine the textual form of the preferred IP address. For example, 9.5.87.124 or 10.1.2.2.
    3. Update the IP address for all of the processes identified in the first substep with the textual form of the preferred IP address that you specified for the DCS unicast address.
      1. In the administrative console:
        • For an application server process, click Servers > Application servers.
        • For a node agent process, click System administration > Node agents.
        • For a deployment manager process, click System administration > Deployment manager.
      2. Select the appropriate process.
      3. Under Additional properties , click Ports to bring up the list of ports for the selected process.
      4. Click the port named DCS_UNICAST_ADDRESS.
      5. Enter the preferred IP address in the Host field and then click Apply to save your changes.

      Following are the allowed values for the Host field:

      • An asterisk, which allows high availability manager communications on all IP addresses. This is the default value, but cannot be used if your processes must interact with V6.0.0 or V6.0.1 processes.
      • Text IP address, such as 10.1.1.2, which restricts high availability manager communications to that IP address. Text IP addresses can be used if the host is configured to use either a single IP address or multiple IP addresses.
      • A string host name of the form myhost.mydomain . A string host name cannot be used if the host is configured to use multiple IP addresses.
  2. Specify a range of multicast group IP addresses that the high availability manager can use for communications within the core group. If the core group transport is configured as multicast, you must associate a range of IP address for high availability manger communications, and you must use core group properties to specify this range of IP addresses. Do not specify them on a per process basis.
    1. In the administrative console, click Servers > Core groups > Core group settings
    2. Select the core group.
    3. In the Multicast group IP start field, specify the first IP address in the range of IP addresses.
    4. In the Multicast group IP end field, specify the last IP address in the range of IP addresses.
    5. Click Apply and then Save to save your changes.

Result

The high availability manager uses the specified IP address or range of IP addresses for communications within the core group.



Sub-topics
Core group bridge custom properties

Related concepts
High availability manager
Core groups
High availability groups

Related tasks
Moving core group members
Setting up a high availability environment

Related reference
Core group bridge custom properties

Task topic    

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