Chapter 16: Dynamic Routing Protocols
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
549
The C4/c CMTS does not use the new precedence value for DOCSIS classification, but if it is included it can be used in
routers or devices north of the C4/c CMTS.
Set IP DSCP
The
configure route-map-policy * permit * set ip dscp
is used to overwrite the six Differentiated Services
Codepoint (DSCP) bits in the Type of Service (ToS) byte with the keywords (see table below) or with a numeric value (0 -
63). Valid keywords are those listed in the Value column below. The DSCP values include Assured Forwarding (AF), Class
Selector (CS), and Expedited Forwarding (EF).
Table 72.
Setting IP DSCP Value
Value
Overwrite the DSCP field with...
<0-63>
the specified codepoint value
af11
AF11 dscp (0b001010)
af12
AF12 dscp (0b001100)
af13
AF13 dscp (0b001110)
af21
AF21 dscp (0b010010)
af22
AF22 dscp (0b010100)
af23
AF23 dscp (0b010110)
af31
AF31 dscp (0b011010)
af32
AF32 dscp (0b011100)
af33
AF33 dscp (0b011110)
af41
AF41 dscp (0b100010)
af42
AF42 dscp (0b100100)
af43
AF43 dscp (0b100110)
cs1
CS1 (precedence 1) dscp (0b001000)