Qos Levels; Dscp Mapping; Table 16: Default Qos Service Levels - Juniper EX2500 Configuration Manual

EX2500 Ethernet Switch Configuration Guide

QoS Levels

DSCP Mapping

62
Using DSCP Values to Provide QoS
Table 16 shows the default service levels provided by the switch, listed from
highest to lowest importance.

Table 16: Default QoS Service Levels

Service Level
Critical
Network Control
Premium
Platinum
Gold
Silver
Bronze
Standard
The switch can use the DSCP value of ingress packets to set the COS queue. Use the
following command to view the default settings:
ex2500(config)# show qos dscp
DSCP CoS Queue
-------- ---------
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 1
9 1
10 1
...
54 6
55 6
56 7
57 7
58 7
59 7
60 7
61 7
62 7
63 7
Use the following command to turn on DSCP re-marking globally:
ex2500# qos dscp enable
Use the following command to perform DSCP mapping:
ex2500# qos dscp transmit-queue <DSCP value (0-63)> <COSq (0-7)>
Default PHB
CS7
CS6
EF, CS5
AF41, AF42, AF43, CS4
AF31, AF32, AF33, CS3
AF21, AF22, AF23, CS2
AF11, AF12, AF13, CS1
DF, CS0
802.1p Priority
7
6
5
4
3
2
1
0