l group-policy { basic-acl-number | acl-name acl-name } [ order order-value]: specifies the
range of the multicast groups that use the threshold. By default, the threshold is applicable
to all multicast groups.
Step 4 Run:
timer spt-switch interval
The interval for checking the forwarding rate of multicast data is set.
----End
6.11.3 Checking the Configuration
After the control parameters for SPT switchover are adjusted, you can run commands to check
entries in the PIM routing table.
Procedure
l Run the following commands to check the PIM routing table.
– display pim { vpn-instance vpn-instance-name | all-instance } routing-table [ group-
address [ mask { group-mask-length | group-mask } ] | source-address [ mask { source-
mask-length | source-mask } ] | incoming-interface { interface-type interface-
number | register } | outgoing-interface { include | exclude | match } { interface-type
interface-number | register | none } | mode { dm | sm | ssm } | flags flag-value | fsm ]
*
[ outgoing-interface-number [ number ] ]
– display pim routing-table [ group-address [ mask { group-mask-length | group-
mask } ] | source-address [ mask { source-mask-length | source-mask } ] | incoming-
interface { interface-type interface-number | register } | outgoing-interface
{ include | exclude | match } { interface-type interface-number | vpn-instance vpn-
instance-name | register | none } | mode { dm | sm | ssm } | flags flag-value | fsm ]
*
[ outgoing-interface-number [ number ] ]
– display pim [ vpn-instance vpn-instance-name | all-instance ] routing-table brief
[ group-address [ mask { group-mask-length | group-mask } ] | source-address
[ mask { source-mask-length | source-mask } ] | incoming-interface { interface-type
interface-number | register } ]
*
----End
6.12 Configuring PIM BFD
After detecting a fault on the peer, BFD immediately notifies the PIM module to trigger a new
DR election rather than waits until the neighbor relationship times out. This shortens the period
during which multicast data transmission is discontinued and thus improves the reliability of
multicast data transmission.
6.12.1 Establishing the Configuration Task
After basic functions of PIM-SM are configured, you can configure PIM BFD to improve PIM
network reliability, and adjust BFD parameters as required.
Networking Requirements
Generally, if the current DR in a shared network segment is faulty, other PIM neighbors triggers
a new round of DR election only after the neighbor relationship times out. The duration that data
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 6 PIM-SM (IPv4) Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
185
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