Huawei quidway s7700 - PIM-DM Features Supported by the S7700

The Protocol Independent Multicast-Sparse Mode (PIM-SM) is applicable to a large-scale
network with sparsely-distributed members. For details about PIM-SM, see PIM-SM (IPv4)
Configuration.
5.2 PIM-DM Features Supported by the S7700
The system can work normally with default PIM-DM parameters. You are also allowed to adjust
parameters related to neighbor discovery, prune, state refresh, graft, and assert according to
specific scenarios. In addition, you can configure various filtering policies and the PIM silent
function to enhance the PIM-DM security.
Controlling the Forwarding of a Multicast Source
You can configure the Keepalive period of a multicast source and the filtering rules based on
multicast sources.
Adjusting Control Parameters for Setting Up Neighbor Relationship
You can set the following control parameters:
l The interval for sending Hello messages
l The period for keeping neighbors reachable
l Whether the Hello messages without the Generation ID option are received
l The maximum delay for triggering Hello messages
l Neighbor filtering function: An interface sets up neighbor relationships with only the
addresses matching the filtering rules and deletes the neighbors unmatched with the filtering
rules
Adjusting Control Parameters for Pruning
You can adjust the following control parameters for pruning:
l The interval for keeping the Prune state of the downstream interface
l The delay from the time when the current switch receives a Prune message from a
downstream switch to the time when the current switch performs the prune action in the
LAN
l The period for overriding the prune action
Adjusting Control Parameters for State-Refresh
You can enable or disable State-Refresh, set the interval for sending PIM State-Refresh
messages, set the minimum interval for receiving the next State-Refresh message, and set the
TTL value for forwarding State-Refresh messages on the switch directly connected to the source.
Adjusting Control Parameters for Graft
You can set the interval for retransmitting Graft messages.
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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