Setting Port Configuration

The Port Settings page displays the global and per port setting of all the ports. This page enables you to select and configure the desired ports from the Edit Port Settings page.

To configure port settings:

1. Click Port Management > Port Settings.
2. Select Jumbo Frames to support packets of up to 10 Kb in size. If Jumbo Frames is not enabled (default), the system supports packet size up to 2,000 bytes. For jumbo frames to take effect, the device must be rebooted after the feature is enabled.
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 Copy/ Save Configuration page, and the device is rebooted.

4. To update the port settings, select the desired port, and click Edit.
5. Modify the following parameters:
Interface—Select the port number.
• Port Type—Displays the port type and speed. The possible options are:
Copper Ports—Regular, not Combo, support the following values: 10M, 100M, and 1000M (type: Copper).
• Combo Ports Copper—Combo port connected with copper CAT5 cable, supports the following values: 10M, 100M, and 1000M (type: ComboC).
• Combo Fiber—SFP Fiber Gigabit Interface Converter Port with the following values: 100M and 1000M (type: ComboF).
• 10G-Fiber Optics—Ports with speed of either 1G or 10G.

NOTE     SFP Fiber takes precedence in Combo ports when both ports are being used.

• Port Description—Enter the port user-defined name or comment.
• 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.
• Time Range—Select to enable the time range during which the port is in Up state. When the time range is not active, the port is in shutdown. If a time range is configured, it is effective only when the port is administratively Up. If a time range is not yet defined, click Edit to go to the Time Range page.
• Time Range Name—Select the profile that specifies the time range.
• Operational Time-Range State—Displays whether the time range is currently active or inactive.
• Reactivate Suspended Port—Select to reactivate a port that has been suspended. There are numerous ways that a port can be suspended, such as through the locked port security option, dot1x single host violation, loopback detection, STP loopback guard or Access Control List (ACL) configurations. The reactivate operation brings the port up without regard to why the port was suspended.
• Auto-Negotiation—Select to enable auto-negotiation on the port. Auto-negotiation enables a port to advertise its transmission speed, duplex mode, and Flow Control abilities to the port link partner.
• Operational Auto-Negotiation—Displays the current auto-negotiation status on the port.
• Administrative Port Speed—Configure the speed of the port. The port type determines which 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.
• Administrative Duplex Mode—Select the port duplex mode. This field is configurable only when auto-negotiation is disabled, and the port speed is set to 10M or 100M. At port speed of 1G, the mode is always full duplex. The possible options are:
Full—The interface supports transmission between the device and the client in both directions simultaneously.
• Half—The interface supports transmission between the device and the client in only one direction at a time.
• Operational Duplex Mode—Displays the ports current duplex mode.
• Auto Advertisement—Select the capabilities advertised by auto-negotiation when it is enabled. The options are:
Max Capability—All port speeds and duplex mode settings can be accepted.
• 10 Half—10 Mbps speed and Half Duplex mode.
• 10 Full—10 Mbps speed and Full Duplex mode.
• 100 Half—100 Mbps speed and Half Duplex mode.
• 100 Full—100 Mbps speed and Full Duplex mode.
• 1000 Full—1000 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.
• Neighbor Advertisement—Displays the capabilities advertised by the neighboring device (link partner).
• 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. It disables the remote port, preventing it from sending packets by jamming the signal.
• Flow Control—Enable or disable 802.3x Flow Control, or enable the auto-negotiation of Flow Control on the port (only when in Full Duplex mode).
• MDI/MDIX—the 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 receives 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 the 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 the Configuring LAG Settings section.
• Member in LAG—If the port is a member of a LAG, the LAG number appears; otherwise this field is left blank.
6. Click Apply. The Port Settings are written to the Running Configuration file.