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<dscp1...dscp8> are the 8 DSCP value corresponding to the 0 to 7 CoS value, each
DSCP value is delimited with space, ranging from 0 to 63; dscp-cos <dscp-list> to
<cos> defines the mapping from DSCP to CoS value, <dscp-list> is a list of DSCP
value consisting of up to 8 DSCP values, <cos> are the CoS values corresponding to
the DSCP values in the list；dscp-mutation <dscp-mutation-name> <in-dscp> to
<out-dscp>
<dscp-mutation-name> is the name for mutation mapping, <in-dscp> stand for
incoming DSCP values, up to 8 values are supported, each DSCP value is delimited
with space, ranging from 0 to 63, <out-dscp> is the sole outgoing DSCP value, the 8
values defined in incoming DSCP will be converted to outgoing DSCP values;
ip-prec-dscp <dscp1...dscp8> defines the conversion from IP precedence to DSCP
value, <dscp1...dscp8> are 8 DSCP values corresponding to IP precedence 0 to 7,
each DSCP value is delimited with space, ranging from 0 to 63; policed-dscp
<dscp-list> to <mark-down-dscp> defines DSCP mark down mapping, where
<dscp-list> is a list of DSCP values containing up to 8 DSCP values,
<mark-down-dscp> are DSCP value after mark down.
Default: Default mapping values are:
Default CoS-to-DSCP Map
CoS Value
DSCP Value
Default DSCP-to-CoS Map
DSCP Value
CoS Value
Default IP-Precedence-to-DSCP Map
IP Precedence Value
DSCP Value
dscp-mutation and policed-dscp are not configured by default
Command mode: Global Mode
Usage Guide: In police command, classified packet traffic can be set to mark down if exceed
specified
<mark-down-dscp> can mark down the DSCP values of those packets to new DSCP
values.
Example: Setting the CoS-to-DSCP mapping value to the default 0 8 16 24 32 40 48 56 to 0 1 2 3 4
5 6 7.
Switch(Config)#mls qos map cos-dscp 0 1 2 3 4 5 6 7
16.3 QoS Example
Scenario 1:
Enable QoS function, change the queue out weight of Ethernet port 1/1 to 1:1:2:2:4:4:8:8, and set
EES4710BD 10 Slots L2/L3/L4 Chassis Switch
defines
the
mapping
0
1
2
3
4
0
8
16 24 32 40 48 56
0–7 8–15 16–23 24–31 32–39 40–47 48–55 56–63
0
1
2
0 1
2
3
0 8
16 24 32 40 48 56
average
speed
or
from
DSCP
5
6
7
3
4
5
4
5
6
7
burst
value,
policed-dscp
348
to
DSCP
mutation,
6
7
<dscp-list>
to
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Troubleshooting
