Example: Simple Shared Shaping For Ethernet; Figure 21: Hierarchical Simple Shared Shaping Over Ethernet - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - QUALITY OF SERVICE CONFIGURATION GUIDE 2010-09-22 Configuration Manual

JunosE 11.3.x Quality of Service Configuration Guide
Related
Documentation

Example: Simple Shared Shaping for Ethernet

82
rate of 400 Kbps. The AF queue claims up to the next 2 Mbps. The VC-level best-effort
queues obtain whatever bandwidth remains of the 5 Mbps after the AF traffic and EF
traffic have made their claims. This QoS profile is appropriate for low-CDV mode. If the
provider configures a shapeless VP tunnel in the SAR, QoS sets the SAR shaper for the
VP to match the 5-Mbps shared-shaping rate, and the CDV is bounded for the VP tunnel.
Configuring Simple Shared Shaping on page 77
Simple Shared Shaping Overview on page 75
In a typical triple-play network configuration over Ethernet, individual subscribers are
represented on the B-RAS by VLANs and DSLAMs by SVLANs. In this example, the provider
shapes the subscriber aggregate of voice, video, and data to a single rate.
In this example, S-VLAN 0 has traffic in three traffic-class groups: the default group, the
TC1 traffic class in the G1 group, and the TC2 traffic class in the G2 traffic-class group.

Figure 21: Hierarchical Simple Shared Shaping over Ethernet

In Figure 21 on page 82, the S-VLANs labeled 1, 2, and 3 indicate the possible constituents
for S-VLAN 0. The active constituents for the simple shared shaper are the three nodes
for S-VLAN 0 in the three traffic-class groups.
NOTE: This example uses QoS parameters to configure shared shaping.
Configure the traffic classes and traffic-class groups.
1.
(config)#traffic-class tc1
(config)#exit
(config)#traffic-class tc2
(config)#exit
(config)#traffic-class-group g1
Copyright © 2010, Juniper Networks, Inc.