TOS Calculator

The TOS Calculator window displays when you click:

TOS ... on the Data Message Flow window
Outer IP Type of Service ... on the Wifi Offload Gateway Nodal Test Configuration > Mobile Subscriber pane.
M1 Interface - IGMP Tab
VoLTE Tab , IMS Node Emulator Configuration - DSCP Calculator ...
TOS ... on the External App Configuration window (TWAMP test)

NOTE: The DS header field defines and supersedes any definitions of the IPv4 TOS octet and the IPv6 Traffic Class octet.

Per Hop Behavior (PHB)

Defines how traffic belonging to a particular behavior aggregate is treated at an individual network node. PHB and sets of PHBs are encoded in an unsigned 16 bit binary field (compatible with most of the deployed forwarding treatments selected by the IP Precedence field).

Select the required Per Hop Behavior classification.

Default (Best Effort)
Class Selector
Expedited Forwarding
Assured Forwarding - Low
Assured Forwarding - Medium
Assured Forwarding - High
Unknown

Class Selector

Indicates the code points mapped to PHBs. Select the Class Selector Code point available and mapped with the selected PHB.

Class Selector	Per Hop Behavior
N/A (Default = 0)	Default (Best Effort)
CS1 - 001000 CS2 - 010000 CS3 -011000 CS4 -100000 CS5 -101000 CS6 -110000 CS7 -111000	Class Selector
N/A (Default = 184)	Expedited Forwarding
AF11 - 001010 AF21 - 010010 AF31 - 011010 AF41 - 100010	Assured Forwarding - Low
AF12 - 001100 AF22 - 010100 AF32 - 011100 AF42 - 100100	Assured Forwarding - Medium
AF13 - 001110 AF23 - 010110 AF33 - 011110 AF43 - 100110	Assured Forwarding - High
N/A (Default = 0)	Unknown

Value (Hex)

Decimal

Binary

Displays based on your selection of Per Hop Behavior and Class Selector.

NOTE: You may also enter a Hex, Decimal, or Binary value to automatically display the Class Selector and the mapped Per Hop Behavior, if applicable. If the value is not mapped, then the PHB displays as Unknown.

OK/Cancel

Click OK to display the calculated TOS value or cancel to discard any changes.