Manual

Queues for the ICX 6430 switch
For the ICX 6430 switch, ingress packets are classified into eight QoS priority levels. These are
mapped internally to four hardware forwarding queues or traffic classes as shown in the following
table. QoS priority 7 is the highest priority, and QoS 0 is the lowest QoS priority (qosp) level.
Priority queues for the ICX 6430 TABLE 8
QoS priority level Hardware queues
(Traffic classes)
0 0
1 0
2 1
3 1
4 1
5 2
6 2
7 3
For the ICX 6430 switch, internal forwarding priority maps to hardware forwarding queues 0 through 3.
The mapping between the internal priority and hardware forwarding queue cannot be changed. The
following tables show the default QoS mappings that are used if the trust level for CoS or DSCP is
enabled. Mappings are the same for stand-alone and stacking systems.
Default QoS mappings for ICX 6430, columns 0 to 15 TABLE 9
DSCP value 0 1 2 3 4 5 6 7 8 9 10 11 12 12 14 15
802.1p (CoS) value 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
DSCP value 0 1 2 3 4 5 6 7 8 9 10 11 12 12 14 15
Internal forwarding priority 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
Forwarding queue 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Default QoS mappings for ICX 6430, columns 16 to 31 TABLE 10
DSCP value 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
802.1p (CoS) value 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3
DSCP value 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Internal forwarding priority 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3
Queues for the ICX 6430 switch
22 FastIron Ethernet Switch Traffic Management Guide
53-1003093-03