384 ExtremeWare Software 7.3.0 Command Reference Guide
QoS Commands
configure diffserv replacement priority
configure diffserv replacement priority <value> code-point <code_point>
ports [<portlist> | all]
Description
Configures the default egress Diffserv replacement mapping.
Syntax Description
Default
N/A.
Usage Guidelines
To replace DiffServ code points you must enable both 802.1p replacement and DiffServ replacement
using the
enable dot1p replacement ports
and
enable diffserv replacement ports
commands.
The default 802.1p priority value to code point mappings are described as follows:
Example
The following command specifies that a code point value of 25 should be used to replace the TOS bits
in packets with an 802.1p priority of 2 for ports 5-9:
configure diffserv replacement priority 2 code-point 25 ports 5-9
value Specifies the 802.1p priority value.
code_point Specifies a 6-bit value to be used as the replacement code point in the
IP-TOS byte in the IP header.
portlist Specifies a list of egress ports or slots and ports. May be in the form 1, 2, 3-5,
2:5, 2:6-2:8.
Table 11: Default 802.1p Priority Value-to-Code Point Mapping
Hardware Queue
“i” Chipset 802.1p Priority value Code Point
Q0 0 0
Q1 1 8
Q2 2 16
Q3 3 24
Q4 4 32
Q5 5 40
Q6 6 48
Q7 7 56
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