5.4.1 Establishing the Configuration Task
After basic functions of PIM-DM are configured, you can configure the lifetime of a multicast
source and source address-based filtering rules as required.
Applicable Environment
This configuration is applicable to all PIM-DM networks.
A PIM switch checks the passing multicast data. By checking whether the data matches the
filtering rule, the switch determines whether to forward the data. In this case, you can regard the
switch as the filter of the multicast data. The filter helps to control the data flow and limit the
information that downstream receivers can obtain. Network security is thus ensured.
Pre-configuration Tasks
Before configuring control parameters of a multicast source, complete the following tasks:
l Configuring a unicast routing protocol
l Configuring Basic PIM-DM Functions
Data Preparation
To configure control parameters of a multicast source, you need the following data.
No.
Data
1 Keepalive period of a multicast source
2 Filtering rules of multicast source addresses
5.4.2 Configuring the Lifetime of a Source
A multicast device starts a timer for each (S, G) entry. If the multicast device does not receive
any multicast packets from a multicast source within the set lifetime of the multicast source, it
considers that the (S, G) entry becomes invalid and the multicast source stops sending multicast
data to the multicast group.
Context
Do as follows on the PIM switch:
NOTE
If there is no special requirement, default values are recommended.
Procedure
Step 1 Run:
system-view
The system view is displayed.
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.
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