5.7.6 Checking the Configuration
After the control parameters for state-refresh are adjusted, you can check information about the
PIM interface and the PIM routing table and statistics about PIM control messages through
commands.
Procedure
l Run the display pim [ vpn-instance vpn-instance-name | all-instance ] interface
[ interface-type interface-number | up | down ] [ verbose ] command to check PIM on an
interface.
l Run the display pim [ vpn-instance vpn-instance-name | all-instance ] control-message
counters [ message-type { assert | graft | graft-ack | hello | join-prune | state-refresh |
bsr } | interface interface-type interface-number ]
*
command to check the number of sent
or received PIM control messages.
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
5.8 Adjusting Control Parameters for Graft
To make new members in a network to quickly receive multicast data, a multicast device actively
sends a Graft message through an upstream interface, requesting the upstream device to forward
multicast data to this network segment.
5.8.1 Establishing the Configuration Task
After basic functions of PIM-DM are configured, you can set the interval for retransmitting Graft
messages as required.
Applicable Environment
In a PIM-DM network, if State-Refresh is not enabled, a pruned interface can forward packets
after the Prune state times out. If State-Refresh is enabled, the pruned interface may never
forward packets.
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.
127
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