Federating Deployment of Multiple Instant Messaging Servers

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h1. Federating Deployment of Multiple Instant Messaging Servers{anchor:indexterm-339} {anchor:indexterm-340} {anchor:indexterm-341} {anchor:indexterm-342} {anchor:indexterm-343} {anchor:indexterm-344}

In an LDAP-only deployment, when you federate multiple Instant Messaging deployments you form a larger Instant Messaging community. End users from different servers can communicate with each other, use conference rooms on other domains, and subscribe to news channels on remote servers based on the access privileges.

For enabling communication between multiple Instant Messaging servers in your network, you need to configure your server to identify itself to the other Instant Messaging servers in the network. An Instant Messaging server identifies itself with its domain name, host and port number, server ID, and password.

In an LDAP-only deployment, the two servers should reside in different domains.

Within the server configuration, you can assign each Instant Messaging server a symbolic name, consisting of letters and digits, for example, {{IMserver1}}.

This section describes how to enable federated communication between two Instant Messaging servers.

[Table 8-1|#fvcbv] lists the parameters in {{iim.conf}} used to federate communication between two servers, and the values for these parameters for two example Instant Messaging servers; {{iim.company22.com}} and {{iim.i-zed.com}}.

For more information on the configuration parameters, see [Instant Messaging Configuration Parameters in {{iim.conf}}|Instant Messaging Configuration Parameters in iim.conf].

{info:title=Note} Each Instant Messaging server is identified by its symbolic name. The symbolic name of the server is added in the _iim_server.coservers_ parameter in {{iim.conf}}. This parameter has multiple values and each value is separated by a comma.{info}

h5. {anchor:fvcbv} Table 8-1 Example Configuration Information for Two Federated Instant Messaging Servers
||Parameter in {{iim.conf}} ||Value for Server {{iim.company22.com}} ||Value for Server {{iim.i-zed.com}} ||
|_iim_server.serverid_ |{{Iamcompany22}} |{{iami-zed}} |
|_iim_server.password_ |{{secretforcompany22}} |{{secret4i-zed}} |
|_iim_server.coservers_ |{{coserver1}} |{{coserver1}} |
|_iim_server.domainname_ |{{iim.company22.com}} |{{iim.i-zed.com}} |
|_iim_server.coserver1.host_ |{{iim.i-zed.com:5269}} |{{iim.company22.com:5269}} |
|_iim_server.coserver1.serverid_ |{{Iami-zed}} |{{Iamcompany22}} |
|_iim_server.coserver1.password_ |{{secret4i-zed}} |{{secretforcompany22}} |
|_iim_server.coserver1.domain_ |{{i-zed.com}} |{{company22.com}} |
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h3. To Federate Communication Between Two Instant Messaging Servers{anchor:indexterm-348}
# Gather the information listed in [Table 8-1|#fvcbv].
# Change to _im-cfg-base_ on the server {{iim.company22.com}}.
See [Instant Messaging Server Directory Structure|http://wikis.sun.com/display/CommSuite/Instant+Messaging+Configuration+File+and+Directory+Structure+Overview#InstantMessagingConfigurationFileandDirectoryStructureOverview-InstantMessagingServerDirectoryStructure] for instructions on locating _im-cfg-base_.
# Open {{iim.conf}}.
See [{{iim.conf}} File Syntax |http://wikis.sun.com/display/CommSuite/Instant+Messaging+Configuration+Parameters+in+iim.conf#InstantMessagingConfigurationParametersiniim.conf-indexterm740] for instructions on locating and modifying {{iim.conf}}.
{info:title=Note}The {{iim.conf}} file should be owned by the Instant Messaging server account you created during installation. If the {{iim.conf}} file cannot be read by the Instant Messaging server account, the server and multiplexor will be unable to read the configuration. Additionally, you might lose the ability to edit {{iim.conf}}.{info}
# Modify the parameter values to match your deployment.
[Table 8-1|#fvcbv] lists the parameters you need to modify. If the parameters do not exist in {{iim.conf}}, add them. The following example shows the section of {{iim.conf}} on {{iim.company22.com}} corresponding to the server-to-server communications that you need to modify:
{code}
iim_server.serverid=Iamcompany22
iim_server.password=secretforcompany22
iim_server.domainname=iim.icompany22.com
iim_server.coservers=coserver1
iim_server.coserver1.host=iim.i-zed.com:5269
iim_server.coserver1.serverid=Iami-zed
iim_server.coserver1.password=secret4i-zed
iim_server.coserver1.domain=i-zed.com
{code}
# Follow steps 2 through 4 for the {{iim.conf}} file on server {{iim.i-zed.com}}.
The following example shows the section of {{iim.conf}} on {{iim.i-zed.com}} corresponding to the server-to-server communications that you need to modify:
{code}
iim_server.serverid=Iami-zed
iim_server.password=secret4i-zed
iim_server.domainname=iim.i-zed.com
iim_server.coservers=coserver1
iim_server.coserver1.host=iim.company22.com:5269
iim_server.coserver1.serverid=Iamcompany22
iim_server.coserver1.password=secretforcompany22
iim_server.coserver1.domain=company22.com
{code}
# Save the changes and close {{iim.conf}}.
# Refresh the configuration on both servers.
{code}
imadmin refresh server
{code}