Netgear M4300-24X24F (XSM4348S) - Stackable Managed Switch with 48x10G including 24x10GBASE-T and 24xSFP+ Layer 3 Guia Do Programa
Switching Commands
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M4200 and M4300 Series ProSAFE Managed Switches
IGMP Snooping Querier Commands
IGMP Snooping requires that one central switch or router periodically query all end-devices
on the network to announce their multicast memberships. This central device is the “IGMP
Querier”. The IGMP query responses, known as IGMP reports, keep the switch updated with
the current multicast group membership on a port-by-port basis. If the switch does not
receive updated membership information in a timely fashion, it will stop forwarding multicasts
to the port where the end device is located.
on the network to announce their multicast memberships. This central device is the “IGMP
Querier”. The IGMP query responses, known as IGMP reports, keep the switch updated with
the current multicast group membership on a port-by-port basis. If the switch does not
receive updated membership information in a timely fashion, it will stop forwarding multicasts
to the port where the end device is located.
This section describes commands used to configure and display information on IGMP
Snooping Queriers on the network and, separately, on VLANs.
Snooping Queriers on the network and, separately, on VLANs.
Note:
This note clarifies the prioritization of MGMD Snooping
Configurations. Many of the IGMP/MLD Snooping commands are
available both in the Interface and VLAN modes. Operationally the
system chooses or prefers the VLAN configured values over the
Interface configured values for most configurations when the interface
participates in the VLAN.
Configurations. Many of the IGMP/MLD Snooping commands are
available both in the Interface and VLAN modes. Operationally the
system chooses or prefers the VLAN configured values over the
Interface configured values for most configurations when the interface
participates in the VLAN.
set igmp querier
Use this command to enable IGMP Snooping Querier on the system, using Global Config
mode, or on a VLAN. Using this command, you can specify the IP Address that the Snooping
Querier switch should use as the source address while generating periodic queries.
mode, or on a VLAN. Using this command, you can specify the IP Address that the Snooping
Querier switch should use as the source address while generating periodic queries.
If a VLAN has IGMP Snooping Querier enabled and IGMP Snooping is operationally disabled
on it, IGMP Snooping Querier functionality is disabled on that VLAN. IGMP Snooping
functionality is re-enabled if IGMP Snooping is operational on the VLAN.
on it, IGMP Snooping Querier functionality is disabled on that VLAN. IGMP Snooping
functionality is re-enabled if IGMP Snooping is operational on the VLAN.
Note:
The Querier IP Address assigned for a VLAN takes preference over
global configuration.
global configuration.
The IGMP Snooping Querier application supports sending periodic general queries on the
VLAN to solicit membership reports.
VLAN to solicit membership reports.
Default
Enabled in Global Config mode with default VLAN 1
Format
set igmp querier [vlan-id] [address ipaddress]
Mode
Global Config
VLAN Mode