Configuring the Dual Fiber Repeater Module

9.6.1 Configuring the Dual Fiber Repeater Module

To configure this module you must do the following:

1.Set beacon threshold for the module.

When a beaconing condition is detected on a lobe port, the port is wrapped by the Recovery ASIC. The port is unwrapped when a transition of phantom is detected or when the port disabled and then re-enabled by the user.

The number of times that a phantom transition is allowed to cause a port to unwrap is determined by the bcn_threshold parameter which can be set for each module using the following command:

SET MODULE {slot.port} BCN_THRESHOLD {0-255}

Once the threshold is exceeded, the port or trunk remains wrapped until the user disables and re-enables the port. While wrapped, the port status is

BCN THRES EXCEEDED.

Note: The bcn_threshold is reset whenever a port successfully inserts into the ring, or the module is reset.

2.Enable/disable static switch for each lobe port.

If you want the user of a port to power down the station before that port can be switched to another network segment, you must enable the static_switch for the specified port using the following command:

SET PORT {slot.port} STATIC_SWITCH {enable}

For more information about static_switch please refer to 8.6.2, ªStatic Switch on the Per-Port Switching Modulesº on page 145.

Note: Trunk ports can be switched between different segments at any time.

3. Assign ports to network segments.

Use the following command to assign each port on the module to one of the backplane segments or isolated segments on the module:

SET PORT {slot.port} NETWORK {network}

4. Assign RI/RO trunk ports to network segments.

You can assign RI/RO trunk ports to a network using the following command:

SET TRUNK {slot} RING_IN.n NETWORK {network} or

SET TRUNK {slot} RING_OUT.n NETWORK {network}

In this command ″ n″ is used to specify the set of RI/RO trunks for which this command is issued. ″1″ specifies the top and ″2″ specifies the bottom set.

Note: If you assign a RING_IN (or RING_OUT) trunk to a segment, the other trunk within that set will automatically be assigned to the same segment.

5.Set compatibility mode for the trunk ports.

Depending on the hub to which the trunk is attached you must set the compatibility mode as described in 9.3.1, ªConfiguring the 18-Port Active Per-Port Switching Moduleº on page 177.

To set the compatibility mode for a trunk, you can use the following command:

SET TRUNK {slot} RING_IN.n COMPATIBILITY_MODE {mode} or SET TRUNK {slot} RING_OUT.n COMPATIBILITY_MODE {mode}

6.Enable/disable trunks.

188 8260 Multiprotocol Intelligent Switching Hub

8260 specifications

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IBM 8260 manual Configuring the Dual Fiber Repeater Module, SET Port slot.port Staticswitch enable

Models: 8260