Brocade Multi-Service IronWare QoS and Traffic Management Configuration Guide (Supporting R05.6.00) - Manual (Page 196)

182 Multi-Service IronWare QoS and Traffic Management Configuration Guide
53-1003037-02
Hierarchical QoS (HQoS) for 8x10G modules
5
• Continuous bursts from 2K HQoS customer streams of jumbo packet sizes at line rate cannot
be sustained by XPP's small egress FIFOs.
Configuring HQoS for Local VPLS
FIGURE 16 HQoS for Local VPLS model
HQoS scheduler policy
HQoS is configured by first defining the HQoS scheduler policies and then mapping them to the
physical ports. The same HQoS scheduler policy can be applied to multiple ports to enable
provisioning.
To build a complete HQoS scheduler, you must define the types of scheduler elements used by the
HQoS hierarchy at each hierarchy level.
Figure 17 shows the elements that must be configured for the HQoS policy.
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Queues
queuing per
Level 3
Service
(VLAN)
Level 2
Customer
(VLAN group)
Level 0
Physical Port
(10GE)
Level 1
Logical Port
<10GE 1/1,
VLAN#1,
priority 3>
VLAN group rate
Logical port rate
VLAN#1
VLAN rate
VLAN#1,
VLAN#2
10GE 1/1
VLAN#2
Logical#2
Logical#1
Scheduler Flow
Queue
Scheduler Element
Rate shaper
7
6
5
4
3
2
1
0
<10GE 1/1,
VLAN#2,
priority 2>
<10GE 1/1,
VLAN#8,
priority 7>
7
6
5
4
3
2
1
0 VLAN#8
VLAN#8,...
7
6
5
4
3
2
1
0