Huawei quidway s7700 - Adjusting Control Parameters for Prune; Establishing the Configuration Task

Procedure
l Run the display pim ipv6 interface [ interface-type interface-number | up | down ]
[ verbose ] command to check information about PIM-IPv6 interfaces.
l Run the display pim ipv6 neighbor [ ipv6-link-local-address | interface interface-type
interface-number | verbose ]
*
command to check information about PIM-IPv6 neighbors.
----End
12.6 Adjusting Control Parameters for Prune
When the last member leaves a group, the multicast device sends a Prune message upstream,
requesting the upstream device to execute the prune operation. If other downstream devices on
the same network segment need the multicast data for this group, they need to send Join messages
to override the prune operation. You can adjust control parameters of Join/Prune messages as
required. If there is no special requirement, adopt default values.
12.6.1 Establishing the Configuration Task
After basic IPv6 PIM-DM functions are configured, you can set the period for an interface to
keep the prune state, delay for transmitting Prune messages in a LAN, and interval for overriding
the prune action as required.
Applicable Environment
When the last member of a group on a switch leaves its group, the switch sends a Prune message
through an upstream interface to request the upstream switch to perform the prune action. After
receiving the Prune message, the upstream interface stops forwarding packets to this network
segment. If other downstream switchs exist in this network segment, they must send the Join
message to override the prune action.
Switchs under the control of default values can work normally. In the S7700, users can adjust
related parameters according to the specific network environment.
Pre-configuration Tasks
Before adjusting control parameters for prune, complete the following tasks:
l Configuring a unicast routing protocol
l Configuring Basic PIM-DM (IPv6) Functions
Data Preparation
To adjust control parameters for prune, you need the following data.
No.
Data
1 Timeout period of the Prune state
2 Delay for transmitting Prune messages
3 Period for overriding the prune action
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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