Huawei quidway s7700 - Configuring Control Parameters for Electing a DR

The period for keeping the reachable state of a neighbor is configured.
If the local switch does not receive any Hello message from the neighbor after the
period expires, the local switch considers that the neighbor is unreachable.
6. Run:
pim ipv6 require-genid
The Generation ID option is set in received Hello message.
The Hello message without the Generation ID option is refused.
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13.6.3 Configuring Control Parameters for Electing a DR
The timeout period of a neighbor can be set either globally or on an interface. If the multicast
device does not receive any Hello message from a neighbor when the timeout period is expired,
the device considers that the neighbor is unreachable. The timeout period of the neighbor must
be longer than the interval for sending Hello messages.
Context
Do as follows on the PIM-SM (IPv6) switch:
NOTE
The configuration of the control parameters for electing a DR involves the following cases:
l Global configuration: It is valid on all the interfaces.
l Configuration on an interface: The configuration on an interface takes precedence over the global
configuration. If the configuration on an interface is not done, the global configuration is used.
Procedure
l Global Configuration
1. Run:
system-view
The system view is displayed.
2. Run:
pim-ipv6
The PIM-IPv6 view is displayed.
3. Run:
hello-option dr-priority priority
The priority for the DR election is configured.
On the shared network segment where all PIM-IPv6 switchs support the DR priority,
the switch interface with highest priority acts as the DR. In the case of the same
priority, the switch interface with the highest IP address acts as the DR. If a minimum
of one PIM-IPv6 switch does not support the DR priority, the switch interface with
the highest IP address acts as the DR.
l Configuration on an Interface
1. Run:
system-view
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.
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