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  • EWS Series User Manual
  • Product Overview
    • Introduction
    • LED Behavior
    • Comparison Table
    • Technical Specification
  • Getting Started
    • Management Interface
    • Connecting the Switch
  • Wireless Controller Features
    • Managing EnSky Access Points
    • Device Management
      • Access Points
      • Access Point Settings
      • AP Groups
      • Wireless Services
    • Monitor
      • Active Clients
      • Rogue AP Detection
      • System Log
      • Email Alert
    • Visualization
      • Topology View
      • Map View
      • Floor View
      • Mesh View
    • Statistics
      • Access Points
      • Wireless Clients
      • Real-Time Throughput
    • Hotspot Services
      • Captive Portal
      • Guest Account
    • Mesh
      • Mesh Profile
      • Node List
      • Mesh Tools
      • Isolated Nodes
    • Maintenance
      • Schedule Tasks
      • Troubleshooting
      • Bulk Upgrade
      • One-click Update
      • SSL Certificate
      • Check Codes
  • Ethernet Switch Features
    • System
      • Summary
      • Network Settings
      • System Time
      • Port Settings
      • PoE
      • EEE
    • L2 Features
      • Link Aggregtion
      • STP
      • MAC Address Table
      • LLDP
      • IGMP Snooping
      • MLD Snooping
      • Jumbo Frame
    • VLAN
      • 802.1Q
      • PVID
      • Voice VLAN
    • Management
      • System Information
      • User Management
      • Dual Image
      • SNMP
    • ACL
      • MAC ACL
      • MAC ACE
      • IPv4 ACL
      • IPv4 ACE
      • IPv6 ACL
      • IPv6 ACE
      • ACL Binding
    • QoS
      • Global Settings
      • CoS Mapping
      • DSCP Mapping
      • Port Settings
      • Bandwidth Control
      • Storm Control
    • Security
      • 802.1x
      • Radius Server
      • Access
      • Port Security
      • Port Isolation
      • DoS
    • Monitoring
      • Port Statistics
      • RMON
      • Log
    • Diagnostics
      • Cable Diagnostics
      • Ping Test
      • IPv6 Ping Test
      • Trace Route
    • Maintenance
      • Configuration Manager
      • Firmware Upgrade
  • Appendix
    • Appendix A
    • Appendix B
    • Appendix C
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  1. Ethernet Switch Features
  2. System

Port Settings

PreviousSystem TimeNextPoE

Last updated 4 years ago

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Use this screen to view and configure switch port settings. The port settings page allows you change the configuration of the ports on the switch in order to find the best balance of speed and flow control according to your preferences. Configuring Gigabit ports require additional factors to be considered when arranging your preferences for the switch compared to 10/100 ports.

To access the page, click Port Settings under the System menu.

Items

Descriptions

Port

Displays the port number.

Link Status

Indicates whether the link is up or down.

Mode

Select the speed and the duplex mode of the Ethernet connection on this port.

Selecting Auto (auto-negotiation) allows one port to negotiate with a peer port automatically to obtain the connection speed and duplex mode that both ends support. When auto-negotiation is turned on, a port on the switch negotiates with the peer automatically to determine the connection speed and duplex mode. If the peer port does not support auto-negotiation or turns off this feature, the switch determines the connection speed by detecting the signal on the cable and using half duplex mode. When the switch's auto-negotiation is turned off, a port uses the pre-configured speed and duplex mode when making a connection, thus requiring you to make sure that the settings of the peer port are the same in order to connect.

Flow Control

A concentration of traffic on a port decreases port bandwidth and overflows buffer memory causing packet discards and frame losses. Flow Control is used to regulate transmission of signals to match the bandwidth of the receiving port. The switch uses IEEE 802.3x flow control in full duplex mode and backpressure flow control in half duplex mode.

IEEE 802.3x flow control is used in full duplex mode to send a pause signal to the sending port, causing it to temporarily stop sending signals when the receiving port memory buffers fill.

Back Pressure flow control is typically used in half duplex mode to send a "collision" signal to the sending port (mimicking a state of packet collision) causing the sending port to temporarily stop sending signals and resend later.

Click Apply to save settings.