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Setting Up Ports
- 09 Aug 2024
- 10 Minutes to read
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Setting Up Ports
- Updated on 09 Aug 2024
- 10 Minutes to read
- Contributors
- Print
- PDF
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You can configure the parameters for each port on the unit to manage options, such as protection (when available), link speed (auto-negotiation) and flow control.
The Skylight element: GX available in two models with the following physical traffic ports:
Connector Configuration
The Skylight element: GX supports both fiber and copper SFPs on Ports 1-4. The Skylight element: GX-S supports both fiber and copper SFPs on Ports 1-8.
The Skylight element: GX and GS-X display LAG-1, LAG-2, LAG-3 and LAG-4 in the Ports Config page.
- LAG-1 protects PORT-1 and PORT-2. Traffic is mapped to Traffic-1.
- LAG-2 protects PORT-3 and PORT-4. Traffic is mapped to Traffic-3.
- LAG-3 protects PORT-5 and PORT-6. Traffic is mapped to Traffic-5.
- LAG-4 protects PORT-7 and PORT-8. Traffic is mapped to Traffic-7.
To view current port settings
- Access the page Port ▶Configuration.
A list of all ports and their current status is displayed.
For more information on specific parameters, refer to the following table.
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.
Port Configuration and Status (Port ▶Configuration)
| Parameter | Description |
|---|---|
| Status | The following colors in the summary page indicate the port status:
|
| Connector | The type of physical connector associated with the port. Available options are:
|
| Port Name | The name of the port. By default, ports are named as follows: PORT-1, PORT-2, PORT-3, PORT-4, PORT-5, PORT-6, PORT-7, PORT-8,ORT-9, PORT-10, PORT-11, PORT-12, LAG-1, LAG-2, LAG-3, LAG-4, LAG-5 and LAG-6. |
| Port State | The port may be either enabled or disabled. |
| Speed | Sets the port speed and duplex type. Auto-negotiation: The unit automatically negotiates port speed and duplex type with the device to which it is connected. For autonegotiation to be successful, the other device must also be set up for auto-negotiation. On other devices, if Auto-Negotiation is not in use, you can manually define the port speed:
Note: Unsupported options, if any, are disabled. In 1G mode, auto-negotiation may be selected (advertises 1000 Mbps, full-duplex only). Auto-negotiation is mandatory for 1000 BASE-T. If you are using a LAG port with the protection mode set to link status, you must enable auto-negotiation on the physical port associated with the LAG port. |
| MAC Address | The MAC address assigned to the port, for example 00:15:AD:1D:72:00. |
To configure current port settings
- Access the page Port ▶Configuration.
A list of all ports and their current status is displayed.
Note: The information displayed will vary depending on the model you are using (GX or GX-S).
Click the name of the port's settings under the Port Name heading.
The Port Configuration page is displayed.Enter values in the required fields, then click Apply.
Note: When disabling a regular port or a LAG port, the following message will be displayed "Configuration changes are service affecting. Are you sure you want to proceed?". Click OK to proceed with your changes or Cancel to go back to the previous screen.
For more information on specific parameters, refer to the following table.
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.
<Port_Name> Port Configuration (Port ▶Configuration)
| Parameter | Description |
|---|---|
| Enable | Select this box to enable this port. |
| Name | Enter a name to identify this port. By default, ports are named as follows: PORT-1, PORT-2, PORT-3, PORT-4, PORT-5, PORT-6, PORT-7, PORT-8, LAG-1, LAG-2, LAG-3 and LAG-4.*. |
| 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. When a LAG port is enabled, the physical ports enslaved by the LAG port must have the same MTU settings to ensure error-free transmission. Supported values: 64–10240 Default value: 2000 Notes: Setting the MTU to a value smaller than 1518 bytes on a port used for management may cause a loss of access to the unit. The MTU size supports up to 12 additional bytes over and above the defined value to account for a VLAN stack of up to three tags. |
| Large Packet Threshold | Packets above this threshold will be classified as Large Packets. The Large Packets count can be viewed on the Port ▶Statistics page. |
| 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:
|
| Enable Fault Propagation | Enables the propagation of link faults (or LACP status) between the ports specified in the field Propagate From Port. |
| Fault Propagation Mode | 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. |
| Propagate From Port | The port for fault propagation may be one of the following: PORT-1 or PORT-2: The unit propagates the fault from any port other than itself, or any LAG other than LAG-2, LAG-3 or LAG-4. PORT-3 to PORT-8: The unit propagates the fault from PORT-1, PORT-2 or LAG-1. LAG-1: The unit propagates the fault from PORT-3, PORT-4, PORT-5, PORT-6, PORT-7, PORT-8, LAG-2, LAG-3 or LAG-4. LAG-2 to LAG-4: The unit propagates the fault from PORT-1, PORT-2 or LAG-1. Note: In the case of a LAG, you must first enable the Protection box, then click Apply. The Propagate From Port drop-down list will then be displayed. |
| Media Dependent Interface (Copper ports only) | Auto MDI means that the unit automatically adapts the configuration of the connector to the cabling plant and type of link partner. If Auto MDI is not in use, you can manually define port settings as follows: **MDI:**Typical setting for an Ethernet station. Link partner must be set to MDIX or a cross-over cable must be used. MDIX: Typical setting for an Ethernet switch. Link partner must be set to MDI or a cross-over cable must be used. |
| Speed Link Speed | Sets the port speed and duplex type. Auto-negotiation: The unit automatically negotiates port speed and duplex type with the device to which it is connected. For autonegotiation to be successful, the other device must also be set up for auto-negotiation. On other devices, if Auto-Negotiation is not in use, you can manually define the port speed:
In 1G mode, auto-negotiation may be selected (advertises 1000 Mbps, full-duplex only). |
| Link Loss Return (LLR) Note: (SFP fiber ports only) | This option determines how the unit notifies its link partner when a valid receive signal is absent on the link. If LLR is disabled, then:
Entering a value of 0 puts the laser into a disabled state waiting for the opposite side to send a light pulse to re-establish the link. Consequently, a value of 0 should not be configured on both sides, otherwise the link will never be re-established. |
| Internal Loopback Enable | Click this box to enable or disable the internal loopback mode. Enabling the system loopback mode redirects the transmitted frames to the receive path. Timeout value has a range of 0–60 minutes. The default is 5 minutes. |
| Protection Enable | Enable protection for this port. The protecting port is reserved by the protection mechanism and cannot be used for monitoring purposes as long as the protection is enabled. Note: This parameter is only available on LAG ports. When using Fault propagation with LAG port protection, you must enable the protection on both LAG ports for the fault propagation to work correctly. |
| Protection Mode | Switching protection to a standby port can be based on link status, LACP status or ERP status. If you select LACP status, you must create an L2PT rule with an operation mode of Peer and protocol LACP on this port in order to terminate LACP frames. If you select LACP status, you must also set up LAG protection in the page Protection ▶LACP ▶Configuration. If you select link status for a LAG port, you must enable autonegotiation on the physical port associated with the LAG port. If you select ERP status, you must also set up ERP protection in the page Protection ▶ERP ▶Configuration. Note: This parameter is only available on LAG ports. |
| Working Connector | The working physical port for the specified LAG port. Choosing the port allows you to perform a manual switchover operation. Note: This parameter is only available on LAG ports with the Protection Mode set to link status or LACP status. |
| Revertive | When enabled, the traffic is switched back to the main port after the reversion period has expired. Note: This parameter is only available on LAG ports with protection mode set to link status or LACP status. |
| Revertive Period | The time, expressed in seconds, that the system must continuously detect a valid signal on the main port in order to switch back to this port. Notes: The timer is restarted if a signal loss is detected during this period. This parameter is only available on LAG ports with protection mode set to Link Status or LACP Status. |
| Link Time Out | The time, expressed in seconds, to wait for the link to come up after switching to the standby port. If the timer expires and the link stays down, the system switches back to the working port. Notes: In a back-to-back deployment, it is recommended to set a different link timeout on each unit for a faster link-up time. This parameter applies to only link status and is available only on LAG ports. |
| Flow Control | Supported options are:
|
| LLDP Enable | Enable or disable LLDP (Link Layer Discovery Protocol) frame transmission on the port. Notes: This parameter is available on Auxiliary ports only. This parameter is not available on LAG ports. |
| Rate | The LLDP frame transmission rate on the port, expressed in seconds. Range: 1–3,600 Note: This parameter is not available on LAG ports. |
| 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]. Note: This parameter is not available on LAG ports. |
| Current Status | The current link speed and duplex type of the port.
|
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