Limiting The Maximum Igmp Message Rate - Juniper ACX1000 Configuration Manual

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Limiting the Maximum IGMP Message Rate

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Copyright © 2017, Juniper Networks, Inc.
one or more multicast routers, it is retransmitted. The number of times it is retransmitted
is the robust count minus one. In IGMPv3, the robust count is also a factor in determining
the group membership interval, the older version querier interval, and the other querier
present interval.
By default, the robustness variable is set to 2. You might want to increase this value if
you expect a subnet to lose packets.
The number can be from 2 through 10.
To change the value of the robustness variable:
Configure the robust count.
1.
When you set the robust count, you are in effect configuring the number of times the
querier retries queries on the connected subnets.
[edit protocols igmp]
user@host# set robust-count 5
Verify the configuration by checking the IGMP Robustness Count field in the output
2.
of the
show igmp interfaces
Modifying the IGMP Host-Query Message Interval on page 450
Modifying the IGMP Query Response Interval on page 451
Modifying the IGMP Last-Member Query Interval on page 455
show pim interfaces
RFC 2236, Internet Group Management Protocol, Version 2
RFC 3376, Internet Group Management Protocol, Version 3
This section describes how to change the limit for the maximum number of IGMP packets
transmitted in 1 second by the router.
Increasing the maximum number of IGMP packets transmitted per second might be
useful on a router with a large number of interfaces participating in IGMP.
To change the limit for the maximum number of IGMP packets the router can transmit
in 1 second, include the
maximum-transmit-rate
number of packets per second to be transmitted.
maximum-transmit-rate (Protocols IGMP)
Chapter 14: Configuring Internet Group Management Protocol
command.
statement and specify the maximum
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