• SonicOS 7 Profile Objects
• Endpoint Security
• Bandwidth
• Quality of Service (QoS) Marking
  • Classification
  • Marking
  • Conditioning
    • Site to Site VPN over QoS Capable Networks
    • Site to Site VPN over Public Networks
  • 802.1p and DSCP QoS
    • Enabling 802.1p
    • DSCP Marking
      • DSCP Marking and Mixed VPN Traffic
      • Configure for 802.1p CoS 4 – Controlled load
      • QoS Mapping
      • Managing QoS Marking
  • Glossary
• Content Filter
  • Managing CFS Profile Objects
    • About CFS Profile Objects
    • About UUIDs for CFS Profile Objects
    • Configuring CFS Profile Objects
      • Advanced Screen
      • Consent Screen
      • Custom Header Screen
    • Editing a CFS Profile Object
    • Deleting CFS Profile Objects
  • Applying Content Filter Objects
• DHCP Option
  • Configuring DHCP Option Objects
    • RFC-Defined DHCPV4 Option Numbers
    • RFC-Defined DHCPV6 Option Numbers
  • Editing DHCP Option Objects
  • Deleting DHCP Option Objects
• AWS
  • AWS Objects
    • About Address Object Mapping with AWS
    • Viewing Instance Properties in SonicOS
    • Creating a New Address Object Mapping
    • Enable Mapping
    • Configuring Synchronization
    • Configuring Regions to Monitor
    • Verifying AWS Address Objects and Groups
• SonicWall Support
  • About This Document

QoS Mapping

The primary objective of QoS Mapping is to allow 802.1p tags to persist across non-802.1p compliant links (for example, WAN links) by mapping them to corresponding DSCP tags before sending across the WAN link, and then mapping from DSCP back to 802.1p upon arriving at the other side, as shown in the below figure.

Mapping will not occur until you assign Map as an action of the QoS view of an Access Rule. The mapping table only defines the correspondence that will be employed by an Access Rule’s Map action.

For example, according to the default table, an 802.1p tag with a value of 2 will be outbound mapped to a DSCP value of 16, while a DSCP tag of 43 will be inbound mapped to an 802.1 value of 5.

Each of these mappings can be reconfigured. If you wanted to change the outbound mapping of 802.1p tag 4 from its default DSCP value of 32 to a DSCP value of 43, you can click the Configure icon for 4 and select the new To DSCP value from the drop-down box:

You can restore the default mappings by clicking the Reset option.