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NE40E V800R010C10SPC500 Configuration Guide - IP Multicast 01

This is NE40E V800R010C10SPC500 Configuration Guide - IP Multicast
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Configuring Basic IGMP Functions

Configuring Basic IGMP Functions

To implement communication between user hosts and a multicast network, configure basic IGMP functions on interfaces that connect multicast devices to user network segments.

Usage Scenario

IGMP runs on the network segments that connect routers to user hosts and must be configured on both routers and user hosts. This section describes how to configure IGMP on a router.

  • Before configuring IGMP, enable IP multicast routing, which is the prerequisite for configuring any other multicast functions. When IP multicast routing is disabled, all multicast-related configurations will be deleted.

  • Configure an IGMP version on a router's interface that connects to user hosts before you perform other IGMP configurations on the router. A router interface's IGMP version is backward compatible with a user host's IGMP version. Therefore, a router interface's IGMP version must be the same as or later than its connected user hosts' IGMP versions.

  • You can adjust IGMP querier control parameters based on actual network conditions or whether hosts can quickly respond.

  • To determine whether to send IGMP messages to upper-layer protocols for processing, configure the Router-Alert option. IGMP message transmit and receive ends must have the same Router-Alert option configuration on the same network segment. If the two ends do not have the same Router-Alert option configuration, change the configuration on one end.

Pre-configuration Tasks

Before configuring basic IGMP functions, complete the following tasks:

  • Configure link layer protocol parameters and IP addresses for interfaces to ensure that the link layer protocol status of the interfaces is Up.

  • Configure a unicast routing protocol to ensure that unicast routes are reachable.

Configuration Procedures

Figure 3-1 Flowchart for configuring basic IGMP functions
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Updated: 2019-01-03

Document ID: EDOC1100055017

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