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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. QoS

Global Settings

PreviousQoSNextCoS Mapping

Last updated 4 years ago

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There are two options for applying QoS information onto packets: the 802.1p Class of Service (CoS) priority field within the VLAN tag of tagged Ethernet frames, and Differentiated Services (DiffServ) Code Point (DSCP). Each port on the switch can be configured to trust one of the packet fields (802.1p , DSCP or DSCP+802.1p). Packets that enter the switch's port may carry no QoS information as well. If so, the switch places such information into the packets before transmitting them to the next node. Thus, QoS information is preserved between nodes within the network and the nodes know which label to give each packet. A trusted field must exist in the packet for the mapping table to be of any use. When a port is configured as untrusted, it does not trust any incoming packet priority designations and uses the port default priority value instead to process the packet.

Items

Descriptions

State

Select whether QoS is enabled or disabled on the switch.

Scheduling Method

Selects the Strict Priority or WRR to specify the traffic scheduling method.

Strict Priority: Specifies traffic scheduling based strictly on the queue priority.

WRR: Uses the Weighted Round-Robin (WRR) algorithm to handle packets in priority classes of service. It assigns WRR weights to queues.

Trust Mode

Select which packet fields to use for classifying packets entering the switch.

DSCP: Classify traffic based on the DSCP (Differentiated Services Code Point) tag value.

802.1p: Classify traffic based on the 802.1p. The eight priority tags that are specified in IEEE 802.1p are from 1 to 8.

Click Apply to update the system settings.