Licensing Requirements For Igmp; Prerequisites For Igmp - Cisco Nexus 7000 Series Configuration Manual

Configuring IGMP
Peer 1 on the CFS. Device 1 acts as an orphan. Any port that is not configured as a vPC, but carries a vPC
VLAN, is called an orphan.
The vPC peer link synchronizes states between the vPC peer devices. In addition to carrying control traffic
between two VPC devices, the vPC peer link also carries multicast and broadcast data traffic. In some link
failure scenarios, it also carries unicast traffic.
Interfaces that receive Query and PIM hello are added as device ports. Interfaces that receive Join messages
are added as group outgoing interfaces (OIFs). Interfaces that receive Leave messages, delete the OIF from
the group entry.
Benefits of IGMP vPC Incremental Sync
• Reduces CFS congestion.
• Results in faster convergence.
Prerequisites for IGMP vPC Incremental Sync
vPC peers must have the same version of the Cisco software image.
Verifying IGMP vPC Incremental Sync
Command
show ip igmp internal vpc

Licensing Requirements for IGMP

Product
Cisco NX-OS

Prerequisites for IGMP

IGMP has the following prerequisites:
• You are logged onto the device.
• You are in the correct virtual device context (VDC). A VDC is a logical representation of a set of system
• For global configuration commands, you are in the correct virtual routing and forwarding (VRF) mode.
resources. You can use the switchto vdc command with a VDC number.
The default configuration mode shown in the examples in this chapter applies to the default VRF.
Purpose
Displays the summary of the IGMP vPC incremental
sync configuration.
License Requirement
IGMP requires no license. Any feature not included
in a license package is bundled with the Cisco NX-OS
system images and is provided at no extra charge to
you. For a complete explanation of the Cisco NX-OS
licensing scheme, see the Cisco NX-OS Licensing
Guide.
Cisco Nexus 7000 Series NX-OS Multicast Routing Configuration Guide
Benefits of IGMP vPC Incremental Sync
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