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Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 18 Regulating and Shaping Subscriber Traffic
Queuing PPP Sessions on ATM VCs
Figure 18-2
illustrates PPP session queuing on ATM VCs.
Figure 18-2
PPP Session Queuing on ATM VCs
Feature History for PPP Session Queuing on ATM VCs
Dynamically Applying QoS Policies to PPP Sessions on ATM VCs
The router allows you to dynamically apply QoS policy maps to PPPoA and PPPoEoA sessions using
RADIUS. Although the actual configuration of the QoS policies occurs on the router, you can configure
the following attribute-value (AV) pairs on RADIUS to specify the name of the policy map to
dynamically apply to the session:
"ip:sub-qos-policy-in=<name of the QoS policy in ingress direction>"
"ip:sub-qos-policy-out=<name of egress policy>"
You define the AV-pairs in one of the following RADIUS profiles:
•
User Profile—The user profile on the RADIUS server contains an entry that identifies the policy
map name applicable to the user. The policy map name is the service that RADIUS downloads to
the router after a session is authorized.
•
Service Profile—The service profile on the RADIUS server specifies a session identifier and an
attribute-value (AV) pair. The session identifier might be, for example, the IP address of the session.
The AV-pair defines the service (policy map name) to which the user belongs.
Cisco IOS Release
Description
Required PRE
Release 12.2(31)SB6
The PPP Session Queuing on ATM VCs feature was
introduced on the Cisco 10000 series router and
implemented on the PRE3.
PRE3
191919
PPPoE Session
ATM VC
pppoe-Session
Session #1
with QoS
Session #2
without QoS
pppoe-Session
More sessions with
or without QoS
HW Interface
Another VC on same interface
Voice
Video
Data-premium
Class-default
Interface without shaper
Interface with shaper