QoS Shapers and Shaper QoS Policies
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Quality of Service Guide
3HE 11014 AAAC TQZZA Edition: 01
10.1 Overview of QoS Shapers and Shaper QoS
Policies
Shapers are used to control access or network traffic flows through the 7705 SAR.
QoS shapers refer to per-SAP and per-VLAN dual-rate aggregate shapers that
operate at the QoS tier 2 level.
Shaper QoS policies refer to policies that contain shaper groups, such as per-
customer (MSS) dual-rate aggregate shapers that operate at the QoS tier 3 level.
Configuring a dual-rate aggregate shaper means setting PIR and CIR values. For
per-customer (MSS) aggregate shapers, this is done through a shaper group.
Dual-rate aggregate shapers are applied to shaped and unshaped SAP traffic for
access ingress and access egress flows, and to shaped and unshaped VLAN traffic
for network egress flows.
On a hybrid port, where access and network traffic can share the same physical port,
a shaper policy can be applied independently to access egress or network egress
traffic.
For more information on QoS shapers and shaper QoS policies, see the following
sections:
• Per-SAP Aggregate Shapers (H-QoS) On Gen-2 Hardware
• Per-VLAN Network Egress Shapers
• Per-Customer Aggregate Shapers (Multiservice Site) on Gen-2 Hardware
• QoS for Hybrid Ports on Gen-2 Hardware
• QoS for Gen-3 Adapter Cards and Platforms
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