Nortel Networks NN10029-111 manual Active-standby server group configuration

88 Configuration Nortel Networks Confidential

group consisting of four servers has provisioning for three public static heartbeat addresses and three private static heartbeat addresses.

The only time when this condition may not hold is when a new server is being introduced into an existing group that is currently providing service. In this case, the new server is provisioned with the information for all the other servers while the other servers are not yet updated with provisioning for the new server.

The reliability manager is configured by provisioning of engineering- and network-related parameters. The engineering parameters determine the timeout intervals and failure detection thresholds. The NSD parameters define the visible network interfaces used by the reliable services. The reliability manager service defines all the NSD data for the set of servers.

Note that checkboxes exist within several of the configuration data areas to enable or disable use of the data. In some cases, not all items are provisioned. For these cases, do not select those checkboxes.

The provisioning also allows for the use of label/value pairs. Where noted, you can use an address label in place of an explict address. This capability simplifies the configuration process where the same data are provisioned multiple times. For the Transport Manager configuration, the Module Parameter label/value pairs are values associated with the entire component (the SIP Application Module). The Service Parameters apply only to the service instance.

The default configuration includes, in the Server Parameter fields, Public_Static_Address and Private_Static_Address labels. These refer to the fixed IP addresses of the server. In the Network Service Descriptor area, the Service Parameter label/value pairs define the Public_Service_Address and the Private_Service_Address. These labels refer to the service addresses for a particular service instance that could be enabled on any one of many servers in the service NSD group.

Active-standby server group configuration

Configuration of an active-standby server group occurs as part of the normal deployment process. When servers are deployed, the administrator is prompted for configuration data specific to that component. During deployment, the administrator will see a configuration tab called Transport Manager. There is one set of fields for the engineering parameter data, one set of fields for the Heartbeat Parameters, and multiple sets of fields for the NSD data.

NN10029-111 Standard MCP 1.1 FP1 (02.02) April 2003 Copyright © 2003, Nortel Networks