Fortinet white logo
Fortinet docs logo DOCUMENT LIBRARY
Fortinet white logo
Fortinet docs logo DOCUMENT LIBRARY
Products Best Practices Hardware Guides Products A-Z
Summary
By Solution
By 4D Pillars
By Cloud
Secure Networking
Unified SASE
Security Operations
Secure SD-WAN
Secure Access Service Edge (SASE)
ZTNA
LAN Edge
Identity and Access Management
Next Generation Firewall
Public Cloud
Private Cloud
FortiCloud
Secure Networking
  • Hybrid Mesh Firewall
  • NOC Management
  • LAN
  • WAN
    • More >>
    Unified SASE
  • Single Vendor SASE
  • Cloud Network Security
  • Secure Endpoint Connectivity
  • Web Application / API Protection
    • More >>
    Security Operations
  • Security Operations Automation
  • Identity
  • Early Detection & Prevention
    • More >>
    Secure Networking
  • Hybrid Mesh Firewall
  • NOC Management
  • LAN
  • WAN
  • Communication & Surveillance
    • Unified SASE
  • Single Vendor SASE
  • Secure Endpoint Connectivity
  • Cloud Network Security
  • Cloud-Native Security
  • Web Application / API Protection
    • Security Operations
  • Security Operations Automation
  • Endpoint
  • Data Protection
  • Identity
  • Email
  • Early Detection & Prevention
  • Expert Services
  • Edge Firewall
  • Orchestration & management
  • SD Branch
  • Application Delivery
  • Single Vendor SASE
  • Secure Endpoint Connectivity
  • Secure Private Access
  • Thin Edge
  • Identity
  • Application Gateway
  • Enterprise Asset Management
  • Endpoint Agent
  • Agentless Security Posture
  • Identity
  • Wireless
  • Switching
  • Identity
  • Privilege Acccess Management
  • Next Generation Firewall
  • Orchestration & management
  • Expert Services
  • All
  • All
  • Account Management
  • SAAS Management
  • SAAS Application Security
  • Managed Services
  • Platform as a service (PAAS)
  • Other SAAS Services
    • 4D Resources
    Solution Hubs
  • 4D Pillars
  • Cloud
  • Popular Solutions

    • Administration Guide

    Home FortiSwitch 7.0.2 Administration Guide
    7.0.2
    7.2.8
    7.2.7
    7.2.6
    7.2.5
    7.2.4
    7.2.3
    7.2.2
    7.2.1
    7.2.0
    7.0.9
    7.0.8
    7.0.6
    7.0.4
    7.0.3
    7.0.2
    7.0.1
    7.0.0
    6.4.11
    6.4.6
    6.4.5
    6.4.3
    6.4.2
    6.4.0
    6.2.5
    6.2.2
    6.2.1
    6.2.0

    Determining the egress queue

    Determining the egress queue

    To determine the egress queue value for the packet, the FortiSwitch unit uses the configured trust values (and mappings) on the port and the QoS/CoS fields in the packet.

    Packets with DSCP and CoS values

    If the port is set to trust DSCP, the switch uses this value to find the queue assignment in the DSCP map for the port.

    If the port is set to trust Dot1p and not to trust DSCP, the switch uses the packet’s CoS value to look up the queue assignment in the Dot1p map for the port.

    If the port is not set to trust Dot1p, the switch uses the default queue 0.

    Packets with a CoS value but no DSCP value

    The switch ignores the trust DSCP value.

    • If the port is set to trust Dot1p, the switch uses the packet’s CoS value to look up the queue assignment in the Dot1p map for the port.
    • If the port is not set to trust Dot1p, the switch uses the default queue 0.

    Packets with a DSCP value but no CoS value

    If the port is set to trust DSCP, the switch uses the packet’s DSCP value to look up the queue assignment in the DSCP map for the port.

    If the port is set to trust Dot1p but not to trust DSCP, the switch uses the default CoS value of the port to look up the queue assignment in the Dot1p map for the port.

    If the port is not set to trust Dot1p, the switch uses the default queue 0.

    Previous
    Next

    Determining the egress queue

    Determining the egress queue

    To determine the egress queue value for the packet, the FortiSwitch unit uses the configured trust values (and mappings) on the port and the QoS/CoS fields in the packet.

    Packets with DSCP and CoS values

    If the port is set to trust DSCP, the switch uses this value to find the queue assignment in the DSCP map for the port.

    If the port is set to trust Dot1p and not to trust DSCP, the switch uses the packet’s CoS value to look up the queue assignment in the Dot1p map for the port.

    If the port is not set to trust Dot1p, the switch uses the default queue 0.

    Packets with a CoS value but no DSCP value

    The switch ignores the trust DSCP value.

    • If the port is set to trust Dot1p, the switch uses the packet’s CoS value to look up the queue assignment in the Dot1p map for the port.
    • If the port is not set to trust Dot1p, the switch uses the default queue 0.

    Packets with a DSCP value but no CoS value

    If the port is set to trust DSCP, the switch uses the packet’s DSCP value to look up the queue assignment in the DSCP map for the port.

    If the port is set to trust Dot1p but not to trust DSCP, the switch uses the default CoS value of the port to look up the queue assignment in the Dot1p map for the port.

    If the port is not set to trust Dot1p, the switch uses the default queue 0.

    Previous
    Next