Configuring Basic Pim-Sm Functions; Establishing The Configuration Task - Huawei Quidway s3700 series Configuration Manual

Quidway S3700 Series Ethernet Switches
Configuration Guide - Multicast
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Configuring Control Parameters for Assert
You can configure the period for retaining the Assert state of the switch interface.
Adjusting Control Parameters for SPT Switchover
You can adjust conditions of the SPT switchover and the interval for checking the forwarding
rate of multicast data.
PIM BFD
In the S3700, you can dynamically set up the BFD session to detect the status of the link between
PIM neighbors. Once a fault occurs on the link, BFD reports the fault to PIM.
PIM GR
The S3700 supports the PIM GR function on the switch with double MPUs. PIM GR ensures
normal multicast data forwarding during master-slave switchover of the switch.

7.3 Configuring Basic PIM-SM Functions

Ensure that unicast routes are reachable before configuring IPv4 multicast routing and enable
PIM-SM on each interface of the multicast device. In this manner, the PIM-SM network can
work normally.

7.3.1 Establishing the Configuration Task

Before configuring basic PIM-SM functions, configure an IPv4 unicast routing protocol.
Applicable Environment
A PIM-SM network can adopt the ASM and SSM models to provide multicast services for user
hosts. The integrated components (including the RP) of the ASM model must be configured in
the network first. The SSM group address range is then adjusted as required.
Through IGMP, a switch knows the multicast group G that a user wants to join.
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Issue 01 (2011-10-26)
Time for overriding the prune action
Filtering Join information in the Join/Prune messages
Neighbor check function: checks whether the Join/Prune and Assert messages are sent to
or received from a PIM neighbor. If not, these messages are not processed.
NOTE
The SSM model is only supported in IGMPv3. If user hosts must run IGMPv1 or IGMPv2, configure IGMP
SSM mapping on switch interfaces.
If G is in the SSM group address range and the source S is specified when the user joins G
through IGMPv3, the SSM model is used to provide multicast services.
If G is in the SSM group address range and the switch is configured with the (S, G) SSM
mapping rules, the SSM model is used to provide multicast services.
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7 PIM-SM (IPv4) Configuration
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