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Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
 
Chapter 39      Configuring ANCP Client
ANCP Guidelines and Restrictions
ANCP Guidelines and Restrictions
When using (or configuring) ANCP, consider these guidelines and restrictions:
• Entering a shut command on a port removes ANCP activated multicast streams from the port. They 
must be reactivated by the ANCP server.
• Entering a suspend or shut command on a VLAN removes ANCP-activated multicast streams from 
the VLAN.
• Deleting a VLAN removes ANCP-activated multicast streams from the VLAN.
• If a port enters the errdisable or blocked state, ANCP-activated multicast streams are removed from 
the port.
• Disabling IGMP snooping globally or per-VLAN might disrupt ANCP client functionality.
• An ANCP client does not account for the Layer 3 interface state changes (if PIM interface at 
Layer 3 shuts down, ANCP does not remove the streams). When a PIM interface is running again, 
multicast streams are received by subscribers.