13.4 Adjusting Control Parameters of a Source
A multicast device can control the forwarding of multicast data based on multicast sources. This
helps to control multicast data flows and limit information that can be obtained by downstream
receivers to enhance security.
13.4.1 Establishing the Configuration Task
After basic functions of IPv6 PIM-SM are configured, you can configure the lifetime of a
multicast source and source address-based filtering rules as required.
Applicable Environment
All the configurations in this section are applicable to the ASM and SSM models.
PIM-IPv6 switchs check the passing multicast data packets. By checking whether the data
packets match the filtering rule, the switchs determine whether to forward the packets. That is,
the switchs in the PIM domain act as filters. The filters help to control data flows, and limit
information obtained by downstream receivers.
NOTE
Switchs under the control of default values can work normally. In the S7700, users can adjust related
parameters according to the actual environment. If there is no special requirement from the actual network,
it is recommended to use default values.
Pre-configuration Tasks
Before adjusting control parameters of a multicast source, complete the following tasks:
l Configuring a unicast routing protocol
l Configuring Basic PIM-SM (IPv6) Functions
Data Preparation
To adjust 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
13.4.2 Configuring the Keepalive Period 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.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 13 PIM-SM (IPv6) Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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