3Com 510M-FBP, 5102M-FBP Fault-Tolerant Configurations, Configuring Ports for Fault Tolerance

Fault-Tolerant Configurations

This section contains descriptions of the redundancy features built into the ONline 10BASE-FB Modules. You can implement link redundancy between concentrators using the port redundancy switch settings on the 10BASE-FB Modules or through ONline network management.

This section contains the following topics:

❑Configuring Ports for Fault Tolerance

❑Implementing Total Backbone Fault Tolerance

Configuring Ports for Fault Tolerance

You can configure the 10BASE-FB Module ports in one of four different 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 the advanced management commands provided with EMM V3.0 or greater.

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

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