Setting Up Ports

You can configure the parameters for each port on the Skylight sensor: control to manage options, such as the port alias.

To view current port settings

1. Access the page Port ▶ Configuration.
   All Skylight sensor: control local ports and their current status are displayed, followed by a listing of all remote devices' ports. Each remote device is listed with paired ports: one UNI port (for example, E011-0036 UNI) and one NNI port (for example, E011-0036-NNI) per device.

   Remote devices that are Skylight modules (Skylight sensor: module 1G and Skylight sensor: SFP compute 1G Advanced Features) are also listed. Each module has two ports: one virtual UNI port (example: E011-0035 vUNI) and one virtual NNI port (example: E011-0036-vNNI).

   If a Skylight module is used as Virtual Circuit Endpoint (VCE), its virtual UNI and NNI ports will be used to create an NFV tunnel. For more information about VCEs, see "About Virtual Connection Endpoints (VCEs)".

2. (Optional) To limit the view to only certain ports, enter a value on which to filter, then click Search. You can filter by port name, status, connector, speed or MAC address.

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   Note: Enter an asterisk ( * ) as a wildcard to replace one or several characters.

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3. To update a port's settings, click its name under the Port Name heading.
   The Port Configuration page is displayed.

4. Enter values in the required fields, then click Apply.

For more information on specific parameters, refer to the following section.

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CAUTION: If you set the Port MTU to a value smaller than 1518 bytes on a port used for management, you or another user may lose access to the management Web interface.

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Port Configuration and Status (Port ▶ Configuration) Parameters

Status: The following colors in the summary page indicate the port status:

• Green: The port is up and running; in the case of a remote device, it means that the device has been linked with the Skylight sensor: control.
• Red: The port is enabled, but the physical link is down and no signal is detected.
• Yellow: The port is not totally functional; in the case of a remote device, it means that the device has been provisioned, but not linked.
• Gray: The port is disabled.

Connector: The type of physical connector associated with the port. Available options are:

• SFP
• RJ45
• FIBER
• SFPHOST
• Management

Port name: The name of the port.

Port state: The port may be either enabled or disabled.

Speed: Sets the port speed and duplex type.
Auto-Negotiation: The Skylight sensor: control automatically negotiates port speed and duplex type with the device to which it is connected. For auto negotiation to be successful, the other device must also be set up for auto negotiation.

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Note: Auto-Negotiation can be disabled on Ant2 Combo and Ant2 RJ45 devices. In this case, you can manually define the port speed and the duplex type:

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• 100 Mbps
• 1 Gbps
• Half-Duplex: Transmission in one direction at a time.
• Full-Duplex: Transmission in both directions at the same time.

On other devices, if Auto-Negotiation is not in use, you can manually define the port speed:

• 100 Mbps
• 1 Gbps

If a 1G SFP is installed in a port, it will automatically enter 1G mode. Likewise, if an SFP+ is installed, the port will automatically enter 10G mode. In 1G mode, auto-negotiation may be selected (advertises 1000 Mbps, full duplex only).

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Note: Auto-negotiation is mandatory for 1000 BASE-T.

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MAC address: The MAC address assigned to the port, for example 00:15:AD:1D:72:00.

To configure current port settings

1. Access the page Port ▶ Configuration.

All Skylight sensor: control local ports and their current status are displayed, followed by a listing of all remote devices' ports. Each remote device is listed with paired ports: one UNI port (for example, E011-0036 UNI) and one NNI port (for example, E011-0036-NNI) per remote device.

2. (Optional) To limit the view to only certain ports, enter a value on which to filter, then click Search. You can filter by port name, status, connector, speed or MAC address.
   

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   Note: Enter an asterisk ( * ) as a wildcard to replace one or several characters.

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3. Click the name of the port's settings, under the Port Name heading.
   The Port Configuration page is displayed.

4. Enter values in the required fields, then click Apply.

For more information on specific parameters, refer to the following table.

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CAUTION: If you set the Port MTU to a value smaller than 1518 bytes on a port used for management, you or another user may lose access to the management Web interface.

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Port Name Configuration (Port ▶ Configuration) Parameters

Name: The name of the port.

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Note: You cannot modify this value.

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Alias: The port's assigned alias name, as specified by a network manager.

Port MTU The maximum transmission unit that a port can receive and forward, including all headers; expressed in bytes.

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Note: Does not apply to local ports. This value is provided for your information, and cannot be modified.

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MAC address: The MAC address assigned to the port, for example 00:15:AD:1D:72:00.

Connector: The type of physical connector associated with the port.

Available options are:

• SFP
• RJ45
• FIBER
• SFPHOST
• Management

Media selection Mode: When configuring a dual-media port, make a selection from the drop-down list to indicate either Automatic or Manual mode.

Selected/preferred connector (Dual-media ports only): When configuring a dual-media port, make a selection from the drop-down list to indicate whether the preferred media type is SFP or RJ45 (copper).

Switching between media types has an impact on traffic.

Approximate switching times are as follows:

• SFP preferred ▶RJ45: 6 seconds
• SFP preferred ▶ SFP (switch back): 0.07 seconds
• RJ45 preferred ▶ SFP: 3 seconds
• RJ45 preferred ▶ RJ45 (switch back): 3 seconds

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Notes: The Skylight sensor: control has been designed with specific behavior when the one type of link is connected, but the other media type is defined as preferred.

When there is no active link on the port, the Port ▶ Configuration page will display the last active connector, even the preferred connector is changed and the port is set to automatic mode.

For example, in the event that the RJ45 link is disconnected, damaged or otherwise goes off-line, the system will continue to display the media type as RJ45; no attempt will be made to update the display to indicate the SFP as the preferred media type. The advantage to this behavior is that you can consult the Port ▶ Configuration page in order to determine which media type was connected when the fault occurred.

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LLDP Enable: Enable or disable LLDP (Link Layer Discovery Protocol) frame transmission on the port.

Forward LLDP: Enable or disable the LLDP frames forwarding from this port.

Rate: The LLDP frame transmission rate on the port, expressed in seconds. Range: 1 to 3600

TTL: The Time To Live (TTL) of the LLDPDU frames transmitted on the port. This value is automatically set by the system to [4 x Tx Rate + 1 second].

Current status: The port's status. Depending on the type of port, the current link speed and duplex type, as well as the Mastership mode status are also provided here.

• Current Connector Configuration: If the link partner is also using Auto MDI, the resulting connector configuration is correct but random. A cross-over cable present on the cabling plant results in both partners using the same connector configuration.

• Mastership Mode: On 1-Gbps copper ports, this reports the clock mastership mode. In auto mode, the clock master is determined by the auto-negotiation process. In forced mode, the clock is forced into slave if the port is a clock reference for the system, otherwise it is master.

Fault propagation:

• One-Way Link: Propagate faults in one direction based on the link status of the opposite port.

• One-Way EVC: Propagate faults in one direction based on the link status of the opposite port or based on the EVC status.

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Note: When fault propagation is enabled, the Auto media selection is disabled and replaced by manual selection.

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