DSCP / ToS Reference
Common DSCP code points with names, acronyms and PHB.
| DSCP | Binary | Acronym | Name | Typical use |
|---|---|---|---|---|
| 0 | 000000 | DF/CS0 |
Default | Best-effort |
| 8 | 001000 | CS1 |
Class Selector 1 | Lowest |
| 10 | 001010 | AF11 |
Assured Forwarding 11 | Low drop |
| 12 | 001100 | AF12 |
Assured Forwarding 12 | Medium drop |
| 14 | 001110 | AF13 |
Assured Forwarding 13 | High drop |
| 16 | 010000 | CS2 |
Class Selector 2 | OAM |
| 18 | 010010 | AF21 |
Assured Forwarding 21 | Low drop |
| 20 | 010100 | AF22 |
Assured Forwarding 22 | Medium drop |
| 22 | 010110 | AF23 |
Assured Forwarding 23 | High drop |
| 24 | 011000 | CS3 |
Class Selector 3 | Broadcast video |
| 26 | 011010 | AF31 |
Assured Forwarding 31 | Low drop |
| 28 | 011100 | AF32 |
Assured Forwarding 32 | Medium drop |
| 30 | 011110 | AF33 |
Assured Forwarding 33 | High drop |
| 32 | 100000 | CS4 |
Class Selector 4 | Real-time interactive |
| 34 | 100010 | AF41 |
Assured Forwarding 41 | Multimedia conferencing |
| 36 | 100100 | AF42 |
Assured Forwarding 42 | Multimedia conferencing |
| 38 | 100110 | AF43 |
Assured Forwarding 43 | Multimedia conferencing |
| 40 | 101000 | CS5 |
Class Selector 5 | Signaling |
| 46 | 101110 | EF |
Expedited Forwarding | Telephony |
| 48 | 110000 | CS6 |
Class Selector 6 | Network control |
| 56 | 111000 | CS7 |
Class Selector 7 | Reserved |