3Com 5104M-FL1 Fault-Tolerant Configurations, Configuring Ports for Fault Tolerance

Fault-Tolerant Configurations

This section contains descriptions of the redundancy features built into the ONline 10BASE-FL Module. You can implement link redundancy between concentrators using the port redundancy switch settings on the 10BASE-FL Module.

This section contains the following topics:

❑Configuring Ports for Fault Tolerance

❑Implementing Backbone Cable Plant Fault Tolerance

❑Implementing Total Backbone Fault Tolerance

Configuring Ports for Fault Tolerance

You can configure ports 1 through 4 on the 10BASE-FL Module in one of five ways:

❑Normal Configuration - Ports 1 through 4 operate as independent cable ports.

❑Standard Redundant Configuration - In this configuration:

–Port 1 acts as the primary port and port 2 as the backup for 1.

–Port 3 acts as the primary port and port 4 as the backup for 3.

❑Flexible Redundant Configuration - You can arbitrarily assign primary and backup ports to any pair of ports. You can configure this mode only through a network management module.

❑Normal and Redundant Configuration - You can enable redundancy between one set of ports and configure the remaining two ports to operate as independent ports.

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