The interface view is displayed.
3. Run:
pim ipv6 holdtime assert interval
The period for keeping the Assert state is set.
The switch that fails in the election prohibits the downstream interface from
forwarding multicast data in this period. After the period expires, the switch restores
the forwarding of the downstream interface.
----End
13.9.3 Checking the Configuration
After the control parameters for assert 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 ipv6 interface [ interface-type interface-number | up | down ]
[ verbose ] command to check information about PIM-IPv6 interfaces.
l Run the display pim ipv6 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 and received PIM-IPv6 control messages.
l Run the following commands to check the PIM-IPv6 multicast routing table.
– display pim ipv6 routing-table [ ipv6-source-address [ mask mask-length ] | ipv6-
group-address [ mask mask-length ] | flags { act | del | exprune | ext | loc | niif |
nonbr | none | rpt | sg_rcvr | sgjoin | spt | swt | wc | upchg } | fsm | incoming-
interface { interface-type interface-number | register } | mode { dm | sm | ssm } |
outgoing-interface { exclude | include | match } { interface-type interface-number |
none | register } ]
*
[ outgoing-interface-number [ number ] ]
– display pim ipv6 routing-table brief [ ipv6-source-address [ mask mask-length ] |
ipv6-group-address [ mask mask-length ] | incoming-interface { interface-type
interface-number | register } ]
*
----End
13.10 Adjusting Control Parameters for the SPT Switchover
A high volume of multicast data traffic increases the load of an RP, and may result in a fault.
To solve this problem, IPv6 PIM-SM allows the RP or the DR at the group member side to
trigger the SPT switchover when the rate of multicast packets is high.
13.10.1 Establishing the Configuration Task
After basic functions of IPv6 PIM-SM are configured, you can adjust control parameters for
SPT switchover as required.
Applicable Environment
This section describes how to configure the control parameters of the SPT switchover through
commands in the ASM model.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 13 PIM-SM (IPv6) Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
485
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