Novell ACCESS MANAGER 3.1 SP1 - IDENTITY SERVER Manual page 23

The system displays the Cluster Details page, which lets you manage the configuration's
cluster details, health, alerts, and statistics.
4 Click Edit.
5 Fill in the following fields as required:
Cluster Communication Backchannel: Specify a communications channel over which the
cluster members maintain the integrity of the cluster. For example, this TCP channel is used to
detect new cluster members as they join the cluster, and to detect members that leave the
cluster. A small percentage of this TCP traffic is used to help cluster members determine which
cluster member would best handle a given request. This back channel should not be confused
with the IP address/port over which cluster members provide proxy requests to peer cluster
members.
Port: Specify the TCP port of the cluster back channel on all of the Identity Servers in the
cluster. 7801 is the default TCP port.
Because the cluster back channel uses TCP, you can have cluster members on different
networks. However, firewalls must allow the ports specified here plus one to pass through.
You need to open two ports for each cluster, for example, 7801 and 7802.
Encrypt: Encrypts the content of the messages that are sent between cluster members.
Level Four Switch Port Translation: Configure the L4 switch to translate the port of the
incoming request to a new port when the request is sent to a cluster member. Because the
cluster members communicate with each other over the same IP address/port as the L4 switch,
the cluster implementation needs to know what that port is. The translated port is the port on
the cluster members where other cluster members can contact it. This is the IP address and port
where cluster members provide proxy requests to other cluster members.
Port translation is enabled on switch: Specify whether the port of the L4 switch is
different from the port of the cluster member. For example, enable this option when the L4
switch is using port 443 and the Identity Server is using port 8443.
Cluster member translated port: Specify the port of the cluster member.
IDP Failover Peer Server Count: For configuration information, see
"Configuring Session Failover," on page
6 Click OK, then update the Identity Server as prompted.
19.
Section 1.1.3,
Configuring an Identity Server 23