Port Settings

The Port Settings page displays the global and per port setting of all the ports. Here, you can select and configure the desired ports from the Edit Port Settings page.

To configure port settings, follow these steps:

Procedure

Step 1

Click Port Management > Port Settings.

The port settings are displayed for all ports.

Step 2

Enter the following fields:

  • Link Flap Prevention—Select to minimize the disruption to your network. Enabled, this command automatically disables ports that experience link-flap events.

  • Jumbo Frames—Check to support packets of up to 9 KB in size. If Jumbo Frames isn’t enabled (default), the system supports packet size up to 2,000 bytes. Note that receiving packets bigger than 9 KB might cause the receiving port to shut down. Also, sending packets bigger than 10 KB bytes might cause the receiving port to shutdown.

    For jumbo frames to take effect, the device must be rebooted after the feature is enabled.

Step 3

Click Apply to update the global setting.

Jumbo frames configuration changes take effect only after the Running Configuration is explicitly saved to the Startup Configuration File using the File Operations, and the device is rebooted.

Step 4

To update the port settings, select the desired port, and click Edit.

Step 5

Modify the following parameters:

Interface

Select the port number.

Port Description

Enter the port user-defined name or comment.

Note

The Interface and Port Description are displayed on the main page in the Port column.

Port Type

Displays the port type and speed. The possible options are:

  • Copper Ports—Regular, not Combo, support the following values: 10M, 100M, 1000M (type: Copper) and 10G.

  • Combo Ports —Combo port connected with either copper CAT6a cable or SFP Fiber Gigabit Interface

  • 10G-Fiber Optics—Ports with speed of either 1G or 10G

Administrative Status

Select whether the port must be Up or Down when the device is rebooted.

Operational Status

Displays whether the port is currently Up or Down. If the port is down because of an error, the description of the error is displayed

Link Status SNMP Traps

Select to enable generation of SNMP traps that notify of changes to the link status of the port.

Time Range

Select to enable the time range during which the port is in Up state. When the time range isn’t active, the port is in shutdown. If a time range is configured, it is effective only when the port is administratively Up.

Time Range Name

Select the profile that specifies the time range. Not relevant for the OOB port. If a time range isn’t yet defined, click Edit.

Operational Time Range State

Range State—Displays whether the time range is currently active or inactive.

Auto Negotiation

Select to enable auto-negotiation on the port. Auto-negotiation enables a port to advertise its transmission speed, duplex mode to the port link partner.

Operational Auto Negotiation

Displays the current auto-negotiation status on the port.

Administrative Port Speed

Select the speed of the port. The port type determines the available speeds. You can designate Administrative Speed only when port auto-negotiation is disabled.

Operational Port Speed

Displays the current port speed that is the result of negotiation.

Auto Advertisement

Select the capabilities advertised by auto-negotiation when it is enabled.

Note

Not all options are relevant for all devices.

The options are:

  • Max Capability—All port speeds and duplex mode settings can be accepted.

  • 1000 Full—1000 Mbps speed and Full Duplex mode

  • 2500 Full—2500 Mbps speed and Full Duplex mode

  • 5000 Full—5000 Mbps speed and Full Duplex mode

  • 10000 Full—10000 Mbps speed and Full Duplex mode

Operational Advertisement

Displays the capabilities currently published to the ports neighbor. The possible options are those specified in the Administrative Advertisement field.

Preference Mode

Available only if auto-negotiation is enabled. Select the active-member mode of the interface for the auto-negotiation operation. Select one of the following options:

  • Slave—Begin negotiation with the preference that the device port is the member in the auto-negotiation process.

  • Master—Begin negotiation with the preference that the device port is the active in the auto-negotiation process.

Neighbor Advertisement

Displays the capabilities advertised by the neighboring device.

Back Pressure

Select the Back Pressure mode on the port (used with Half Duplex mode) to slow down the packet reception speed when the device is congested. Selecting this option disables the remote port, preventing it from sending packets by jamming the signal.

Flow Control

Enable or disable 802.3x Flow Control, on the port (only when in Full Duplex mode).

MDI/MDIX-Media Dependent Interface (MDI)/Media Dependent Interface with Crossover (MDIX) status on the port.

The options are:

  • MDIX—Select to swap the port's transmit and receive pairs.

  • MDI—Select to connect this device to a station by using a straight through cable.

  • Auto-Select to configure this device to automatically detect the correct pinouts for connection to another device.

Operational MDI/MDIX

Displays the current MDI/MDIX setting.

Protected Port

 Select to make this a protected port. (A protected port is also referred as a Private VLAN Edge (PVE).) The features of a protected port are as follows:

  • Protected Ports provide Layer 2 isolation between interfaces (Ethernet ports and LAGs) that share the same VLAN.

  • Packets received from protected ports can be forwarded only to unprotected egress ports. Protected port filtering rules are also applied to packets that are forwarded by software, such as snooping applications.

  • Port protection is not subject to VLAN membership. Devices connected to protected ports are not allowed to communicate with each other, even if they are members of the same VLAN.

  • Both ports and LAGs can be defined as protected or unprotected. Protected LAGs are described in LAG Settings.

Member in LAG

If the port is a member of a LAG, the LAG number appears; otherwise this field is left blank.

Step 6

Click Apply. The Port Settings are written to the Running Configuration file.