Configuring Access Node Control Protocol on Cisco ASR 9000 Series Routers
Prerequisites for Configuring ANCP on Cisco ASR 9000 Series Routers
QC-90
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide
OL-23108-02
Prerequisites for Configuring ANCP on Cisco ASR 9000 Series
Routers
The following prerequisite is required for configuring ANCP on your network:
You must be in a user group associated with a task group that includes the proper task IDs. The command
reference guides include the task IDs required for each command. If you suspect user group assignment
is preventing you from using a command, contact your AAA administrator for assistance.
Restrictions for Configuring ANCP on Cisco ASR 9000 Series
Routers
The following restrictions apply when configuring ANCP on your network:
• Only Rate Adaptive Mode is supported in Cisco IOS XR Release 3.7.2.
• VPN routing and forwarding (VRF) awareness is not supported in Cisco IOS XR Release 3.7.2. All
IP interfaces receiving ANCP traffic should be in default VRF.
• ANCP over IPv6 is not supported for Cisco IOS XR Release 3.7.2.
• Only VLAN subinterfaces over Ethernet and Ethernet bundle ports can be mapped to AN ports using
ANCP.
Information About Configuring ANCP on Cisco ASR 9000 Series
Routers
To implement ANCP, you must understand the following concepts:
• ANCP Adjacencies, page 90
• Neighbor Adjacency Timing, page 91
• ANCP Messages, page 91
• Port Mapping, page 91
• Rate Adjustment, page 92
• Prioritization of ANCP Traffic, page 92
• Process Restart, page 92
• ANCP and QoS Interaction, page 92
• ANCP over Multi-Chassis Link Aggregation, page 93
ANCP Adjacencies
The ANCP server accepts TCP connections from access nodes. An ANCP neighbor is any access node
that establishes an adjacency with an ANCP server. ANCP is configured globally, and as long as it is
IP-enabled, there is no restriction on whether ANCP messages are received on the physical or logical
interface.
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