Alcatel-Lucent OmniSwitch 6860 Series

Configuring QoS Congestion Management
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 26-10
LAG. When this occurs, the LAG QSI becomes the parent and the member port QSI is the child. Note that
when a member port leaves a LAG, the QSI and profile for the port reverts back to the default values.
The following example diagram shows the relationship between switch ports, QSet instances, and QSet
profiles as they apply to unicast traffic. See “QSet Profiles” on page 26-11 for more information.
Queue Set (QSet) Framework (Unicast Traffic)
In this example illustration:
• The switch maintains a QSI for each port (1/1/1, 1/1/2, 1/2/1, and 1/2/2).
• A QSP is applied to the QSI for a port when the QSP is assigned to the port.
• There are pre-defined QSPs available on each switch. In this example, the default QSP 1 is associated
with the QSI for port 1/1/1 and port 1/2/1. However, QSP 4 was assigned to the QSI for port 1/2/1 and
port 1/2/2.
• QSP 1 and QSP 4 apply the default WRED profile 1 (WRP 1) to the QSI for ports 1/1/1, 1/1/2, 1/2/1,
and 1/2/2. (WRED is supported only on the OmniSwitch 6900.)
• The QSet framework shown in this example applies to unicast traffic. Selecting QSPs only applies to
unicast queue management.
Port 1/1/1
7
6
5
4
3
2
1
0
QSI for 1/1/1 and 1/2/1
QSet Profile 4
Q1 = EF, 20% BW
Q2 = SP7+6, 100% BW
Q3 = SP5, 100% BW
Q4 = AF4, 40% BW
Q5 = AF2, 30% BW
Q6 = AF1, 20% BW
Q7 = AF0, 10% BW
Q8 = BE, 0% BW
WRED Profile 1
Queue thresholds and
drop probability for
green, yellow, and red
packets.
Port 1/1/2
7
6
5
4
3
2
1
0
Port Queues
Port 1/2/1
7
6
5
4
3
2
1
0
Port 1/2/2
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
QSet Profile 1
Q1 = SP7, 100% BW
Q2 = SP6, 100% BW
Q3 = SP5, 100% BW
Q4 = SP4, 100% BW
Q5 = SP3, 100% BW
Q6 = SP2, 100% BW
Q7 = SP1, 100% BW
Q8 = SP0, 100% BW
WRED Profile 1
Queue thresholds and
drop probability for
green, yellow, and red
packets.
QSI for 1/1/2 and 1/2/2