Huawei quidway s7700 - Adjusting Control Messages for Assert; 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 grafts command to check the unacknowledged PIM-DM Graft
messages.
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
12.9 Adjusting Control Messages for Assert
If a multicast device can receive multicast data through the downstream interface, this indicates
that other upstream devices exist in this network segment. The device then sends an Assert
message through the downstream interface to take part in the election of the unique upstream
device.
12.9.1 Establishing the Configuration Task
After basic functions of IPv6 PIM-DM are configured, you can set the period for holding the
Assert state as required.
Applicable Environment
When a PIM-DM switch receives multicast data through a downstream interface, this indicates
that other upstream switchs exist in this network segment. The switch sends an Assert message
through the downstream interface to take part in the assert election.
Switchs in the control of default values can work normally. In the S7700, users can adjust related
parameters according to the specific network environment.
NOTE
If there is no special requirement, default values are recommended.
Pre-configuration Tasks
Before adjusting control parameters for Assert, complete the following tasks:
l Configuring a unicast routing protocol
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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