How To Configure Ancp On Cisco Asr 9000 Series Routers; Enabling Ancp - Cisco ASR 9000 Series Service Configuration Manual
Aggregation services router modular quality
Hide thumbs
Also See for ASR 9000 Series:
- Command reference manual (1138 pages) ,
- Routing configuration manual (702 pages) ,
- Reference manual (696 pages)
Table of Contents
Advertisement
How to Configure ANCP on Cisco ASR 9000 Series Routers
MC-LAG, using ICCP (Inter-Chassis Communication Protocol). ANCP on the standby PoA for the
MC-LAG applies the DSL rate data to the corresponding MC-LAG VLAN subinterfaces. When an event
occurs that causes one of the standby PoAs to assume the active role for the MC-LAG, the ANCP
application on the newly active PoA has already applied the DSL rates to shapers on the MC-LAG VLAN
subinterfaces, so the correct DSL rates are applied when this LAG goes active and congestion and
subsequent data loss does not occur at the DSLAM.
A DSLAM establishes an ANCP adjacency with a router over a TCP connection. The DSL rates for the
DSLAM subscriber circuits are communicated over this TCP connection. The DSL rates are applied to
Layer 2 VLAN subinterfaces that are mapped to the subscriber circuits. The ANCP TCP connection that
is used to send DSL rates for Layer 2 VLAN subinterfaces on an MC-LAG must be on a Layer 3 VLAN
subinterface that is in the same MC-LAG as the L2VLAN subinterfaces. Note that this constraint implies
that there is one ANCP TCP connection between the DSLAM and router per MC-LAG.
Figure 2
ANCP TCP Traffic
Subscriber Traffic
Subscriber Traffic
Subscriber Traffic
When an active PoA for a MC-LAG becomes the standby, the DSLAM ANCP TCP connection is
terminated. The DSLAM re-establishes the ANCP TCP connection with the PoA that assumes the active
role for the MC-LAG.
How to Configure ANCP on Cisco ASR 9000 Series Routers
This section contains instructions for the following tasks:
•
•
•
•
•
Enabling ANCP
To enable ANCP, use the ancp command in global configuration mode.
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide
QC-94
ANCP over MC-LAG VLAN Subinterfaces
L3 VLAN
L2 VLAN
L2 VLAN
L2 VLAN
Enabling ANCP, page 94
Configuring ANCP Server Sender Name, page 96
Configuring ANCP Neighbors, page 97
Mapping AN Ports to VLAN Subinterfaces, page 100
Configuring ANCP Rate Adjustment, page 102
Configuring Access Node Control Protocol on Cisco ASR 9000 Series Routers
MC-LAG
OL-23108-02
Advertisement
Table of Contents
