Cisco 10000 Series User Manual

B-1
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
APPENDIX
B
QoS Policy Propagation Through the Border
Gateway Protocol
QoS Policy Propagation through Border Gateway Protocol (QPPB) allows you to classify packets by IP
precedence based on BGP community lists, BGP autonomous system paths, and access control lists
(ACLs). After a packet has been classified, you can use other QoS features such as policing and weighted
random early detection (WRED) to specify and enforce policies to fit your business model.
This appendix provides an example of how to:
1. Create route maps to match BGP community lists, access control lists, and BGP AS paths
2. Apply IP precedence to routes learned from neighbors
QPPB Configuration Example
In this example, the Cisco 10000 series router learns routes from autonomous system (AS) 10 and AS 60.
QoS policy is applied to all packets that match the defined route maps. Any packets from the
Cisco
10000 series router to AS 10 or AS 60 are sent to the appropriate QoS policy (Figure B-1).
Figure B-1 Cisco 10000 Series Router Routes and QoS Policy Application
Cisco
10000
series
2. Route arrives
3. QoS policy applied
1. Route announced
4. Packet sent with QoS policy
Router
B
Autonomous
system 30
10737
Autonomous
system 60
Autonomous
system 10

Cisco 10000 Series Specifications

General

Brand	Cisco
Model	10000 Series
Category	Network Router
Language	English