Rate-Limiting for VoIP Traffic Overview

Because PGCP traffic flows involve voice traffic, the flows require quality of service that:

• Provides the bandwidth that the flow requires.
• Ensures that flows do not consume more resources than they need.
• Regulates flows that are nonconforming and present vastly greater rates of traffic.

The packet gateway provides a two-rate policer that you can apply to the ingress traffic of any gate.

This quality of service is provided through a two-rate three-color policing functionality on the MultiServices PIC. This policer complies with RFC 2698, A Two Rate Three Color Marker, September, 1999. With the rate limiting capability, the MultiServices PIC can police flows to conform to:

• Committed Information Rate (CIR)
• Peak Information Rate (PIR)
• Committed Burst Size (CBS)
• Peak Burst Size (PBS)

Related Topics

• Configuring Rate-Limiting for Voice Calls
• Collecting Statistics on Gates with Rate-Limited Flows

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