Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010, Configuration Manual

Page: 220 / 398

Sample Scheduler Hierarchy for Subscriber Load Balancing
Figure 49 on page 188 displays the scheduler hierarchy for the Gigabit Ethernet
interface in slot 3, port 0. Figure 50 on page 189 displays the scheduler hierarchy for
the Gigabit Ethernet interface in slot 3, port 1.
The Ethernet queues are shown in gray; they are not bound to a link in the LAG and
are replicated for each link in the LAG. These queues are used for subscribers with
QoS profiles that indicate Ethernet queues, and for traffic classes other than best-effort,
traffic class 1, and traffic class 2.
When partitioning the scheduler hierarchy that includes 1000 VLAN subinterfaces,
the system binds 500 of the subinterfaces to port 0, and binds another 500 to port
1. The binding for a given VLAN subinterface is arbitrary.
The scheduler nodes for a given VLAN subinterface are always allocated to the same
port within the LAG. In this example, the scheduler nodes for VLAN 0,0 are all
allocated to Gigabit Ethernet interface in slot 3, port 0.
S-VLAN nodes and queues are cloned for each link in the LAG. S-VLAN nodes in each
traffic-class group are shown identically on both ports.
Figure 49: Subscriber LoadBalanced Scheduler Hierarchy for Port 0
188 ■
Subscriber Load Balancing for 802.3ad Link Aggregation Groups Overview
JUNOSe 11.1.x Quality of Service Configuration Guide