ATM Port Setup

The ATM Port Setup screen allows you to switch the ATM port on or off, and provides status information about the state of the port, and the LECs associated with each of the VLANs. To display the screen:

1 .   From the Main Menu select SWITCH MANAGEMENT. The Switch Management screen is displayed, as shown in Figure 8-4.

2 .   For the Management Level field, select the Port option.

3 .   Ensure that the ATM port number is entered in the
Port ID field. For example the ATM port is:

4 .   Select the SETUP button to display ATM port setup information. An example of the ATM Port Setup screen is shown in Figure 8-7.

Figure 8-7 ATM Port Setup Screen

The screen shows the following fields:

Port Identifies the selected port.

Port Speed Shows the speed of the port connection.

Port State Allows you to turn the port on and off. If you wish to allow traffic to pass through this port, select the Enable option. To prevent traffic passing through the port, select Disable.

Link State Indicates whether the communication link connected to the port is capable of transmitting and receiving traffic. The states are:

Present - the link is capable of transferring traffic; if the ports are also turned on (enabled).

Not Available - the link is not capable of transferring traffic.

If the link is Not Available and both devices are powered-up and operational, there is a physical problem with your connection. For information about the cause of problems and possible solutions, see Table 8-2.

Table 8-2 Link State Troubleshooting Summary

Problem

Solution

The connectors at either end of the link have come loose, or been accidently pulled out.

Ensure that the cable is securely connected to the port at both ends of the link.

The port at the far end of the link is disabled.

Enable the far end port.

If you have fiber cable with connectors that can be reversed; the two connectors at one end of the fiber cable may be plugged into the port the wrong way around.

Check that each cable connector is connected to the correct port socket. You may need to reverse the TX and RX cable connectors at one end of the link.

The cable is caught under a heavy object or become bent out of shape.

Remove any obstructions and straighten out any kinks in the cable.

The connector itself is physically damaged.

Contact your repair center for advice. Refer to "Technical Support" for more details.

To transmit traffic the port must have a Port State of Enabled and the Link State must be Present.

Lost Links The number of times a link was unable to transmit traffic, that is, the number of times (since the device was reset) that the Link State became Not Available.

LEC States Shows the status of the LEC for each VLAN. The state can be:

LEC Active - traffic is passing through the LEC.

LEC Inactive - traffic is not passing through the LEC.

LEC Not in Use - you have decided not to connect this VLAN to the ATM network. The VLAN may still be in operation within the Switch.

CONFIG This button takes you to the ATM Module Configuration screen, which allows you to monitor and set the standards used by the ATM Module to communicate with other ATM devices.
The ATM Module Configuration screen is described in "Configuring an ATM Port".

ARP TABLE This button takes you to the ARP Table screen, which allows you to displays the ATM and MAC addresses on remote devices. The ARP Table screen is described in "Mapping Far End MAC Addresses".

CONNECTION TABLE This button takes you to the ATM Connection Table screen, which allows you to display ATM connection details. The ATM Connection Table is described in "Displaying an ATM Connection".

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