l Configuring a unicast routing protocol
l Configuring Basic PIM-DM (IPv6) Functions
Data Preparation
To adjust control parameters for graft, you need the following data.
No. Data
1 Interval for retransmitting Graft messages
 
12.8.2 Setting the Interval for Retransmitting Graft Messages
In PIM-DM mode, when a member joins a pruned group, the multicast device sends a Graft
message and waits for an ACK message from the upstream device. If the downstream device
does not receive any ACK message within a certain period, the device resends the Graft message
until it receives an ACK message from the upstream device.
Context
If the local switch does not receive any Graft-Ack message from the upstream switch in the
specified time, the local switch resends the Graft message.
Do as follows on the PIM-DM switch:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
Step 3 Run:
pim ipv6 timer graft-retry interval
The interval for retransmitting Graft messages is set.
----End
12.8.3 Checking the Configuration
After the control parameters for graft are adjusted, you can check information about the
unacknowledged PIM-DM graft, PIM interface, and PIM routing table and statistics about PIM
control messages through commands.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 12 PIM-DM (IPv6) Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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