Configuring The Igmp Snooping Querier; Configuration Prerequisites; Enabling The Igmp Snooping Querier - HPE FlexNetwork 5510 HI Series Configuration Manual

• All multicast data for the VLAN to which the port belongs flows to the port. Then, the port
forwards the data to attached receiver hosts. The receiver hosts will receive multicast data that
it does not want to receive.
• The port forwards the IGMP general queries or PIM hello messages to its upstream multicast
routers. These messages might affect the multicast routing protocol state (such as the IGMP
querier or DR election) on the multicast routers. This might further cause network interruption.
To solve these problems, you can disable a port from becoming a dynamic router port. This also
improves network security and the control over receiver hosts.
To disable a port from becoming a dynamic router port:
Step
Enter system view.
1.
Enter Layer 2 Ethernet
2.
interface view or Layer 2
aggregate interface view.
Disable the port from
3.
becoming a dynamic router
port.

Configuring the IGMP snooping querier

This section describes how to configure an IGMP snooping querier.

Configuration prerequisites

Before you configure the IGMP snooping querier, complete the following tasks:
• Enable IGMP snooping for the VLAN.
• Determine the IGMP general query interval.
• Determine the maximum response time for IGMP general queries.

Enabling the IGMP snooping querier

This feature enables the device to periodically send IGMP general queries to establish and maintain
multicast forwarding entries at the data link Layer. You can configure an IGMP snooping querier on a
network without Layer 3 multicast devices.
Configuration restrictions and guidelines
Do not enable the IGMP snooping querier on a multicast network that runs IGMP. An IGMP snooping
querier does not take part in IGMP querier elections. However, it might affect IGMP querier elections
if it sends IGMP general queries with a low source IP address.
Configuration procedure
To enable the IGMP snooping querier for a VLAN:
Step
Enter system view.
1.
Enter VLAN view.
2.
Command
system-view
interface interface-type
interface-number
igmp-snooping
router-port-deny [ vlan vlan-list ]
Command
system-view
vlan vlan-id
25
Remarks
N/A
N/A
By default, a port is allowed to
become a dynamic router port.
This configuration does not affect
the static router port configuration.
Remarks
N/A
N/A