Huawei quidway s7700 - Configuring Basic PIM-DM Functions; Establishing the Configuration Task

Adjusting Control Parameters for Assert
You can set the period for a switch to retain the Assert state. The switch that fails in the election
prevents the downstream interface from forwarding multicast data during this period. After the
period expires, the downstream interface continues to forward multicast data.
Attack Defense Using PIM Silent
Some hosts may send a large number of malicious PIM Hello messages, which results in the
suspension of the switch. The PIM Silent function can then be configured on the interfaces
connected to hosts to protect the switch.
PIM Multi-instance
In multi-instance applications, multicast switchs need to maintain the PIM neighbor list and
multicast routing table for different VPN instances and keep the information independent among
multiple instances.
When a switch receives a multicast data packet, the switch needs to distinguish the VPN instance
to which the packet belongs and forward the packet based on the multicast routing table of the
specific VPN instance, or create a PIM multicast routing entry of the VPN instance.
5.3 Configuring Basic PIM-DM Functions
Ensure that unicast routes are reachable before enabling IPv4 multicast routing, and enable PIM-
DM on each interface of the multicast device. In this manner, the PIM-DM network can work
normally.
5.3.1 Establishing the Configuration Task
Before configuring basic PIM-DM functions, configure a unicast IPv4 routing protocol.
Applicable Environment
PIM-DM is applicable to a small-scale network, and most network segments of the network have
receivers.
Pre-configuration Tasks
Before configuring basic PIM-DM functions, complete the following configuration tasks:
l Configuring an IPv4 unicast routing protocol
Data Preparation
To configure basic PIM-DM functions, you need the following data.
No.
Data
1 Type and number of an interface
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 5 PIM-DM (IPv4) Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
108