Queues for the icx 6430 switch – Brocade FastIron Ethernet Switch Traffic Management Guide User Manual
Page 24
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
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FastIron Ethernet Switch Traffic Management Guide
53-1003093-03