Enterprise Survivable Server - Troubleshooting; General - Avaya ESS User Manual

Maintenance
2. At the Main server issue the status ess port-networks SAT command. Verify that:
The Port Network State for all Port Networks is up.
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All Port Networks are controlled by the Main server (Cluster ID 1).
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The Connected Cluster IDs are as expected considering the ESS design.
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If the Interface Type is EI or UNKN all fields to the right of IPSI Gateway Location will be
blank.
The Connected Cluster IDs are displayed in priority order with the highest priority cluster,
usually the Main server, on the left.

Enterprise Survivable Server - Troubleshooting

General

At times it may be necessary to troubleshoot aspects of the Enterprise Survivable Server
implementation.
In order to determine what might be causing a fault it is important to understand the layout and
topology of the network, where ESS servers are logically located on the network, and the intent
of the design in case of a failure. This information is best obtained from the implementation
team or the final customer.
It is possible to determine how a particular ESS installation is translated and from this make
reasonable predictions as to how the installation will react to server and/or network failures.
However, keep in mind that the way the various components are configured and translated may
not reflect the original intention of the network design.
Commands that can be used to verify ESS server translations are:
disp system-parameters ess on the Main server to determine all translated ESS
●
servers.
status ess clusters to determine which clusters are enabled, when translations
●
were last updated, what software release that the Main server and ESS servers are are
running. The ESS servers can be on a later release than the Main server but the Main
server should never be on a later release than the ESS servers. The software release
should only be different when upgrades are being performed, ESS servers first and then
the Main server.
status ess port-networks to display which Cluster ID is controling each Port
●
Network and which ESS server(s) the Port Networks (IPSIs) have on their priority lists.
164 Avaya Enterprise Survivable Servers (ESS) Users Guide