Cisco Catalyst 3650 Series User Manual

Command History
ModificationRelease
This command was introduced.Cisco IOS XE 3.3SE
Usage Guidelines
Use this command to enable IGMP snooping to detect the IGMP version and IP address of a device that sends
IGMP query messages, which is also called a querier.
By default, the IGMP snooping querier is configured to detect devices that use IGMP Version 2 (IGMPv2)
but does not detect clients that are using IGMP Version 1 (IGMPv1). You can manually configure the
max-response-time value when devices use IGMPv2. You cannot configure the max-response-time when
devices use IGMPv1. (The value cannot be configured and is set to zero).
Non-RFC compliant devices running IGMPv1 might reject IGMP general query messages that have a non-zero
value as the max-response-time value. If you want the devices to accept the IGMP general query messages,
configure the IGMP snooping querier to run IGMPv1.
VLAN IDs 1002 to 1005 are reserved for Token Ring and FDDI VLANs and cannot be used in IGMP snooping.
Examples
This example shows how to globally enable the IGMP snooping querier feature:
Device(config)# ip igmp snooping querier
This example shows how to set the IGMP snooping querier maximum response time to 25 seconds:
Device(config)# ip igmp snooping querier max-response-time 25
This example shows how to set the IGMP snooping querier interval time to 60 seconds:
Device(config)# ip igmp snooping querier query-interval 60
This example shows how to set the IGMP snooping querier TCN query count to 25:
Device(config)# ip igmp snooping querier tcn count 25
This example shows how to set the IGMP snooping querier timeout to 60 seconds:
Device(config)# ip igmp snooping querier timer expiry 60
This example shows how to set the IGMP snooping querier feature to version 2:
Device(config)# ip igmp snooping querier version 2
You can verify your settings by entering the show ip igmp snooping privileged EXEC command.
Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)
226
ip igmp snooping querier

Cisco Catalyst 3650 Series Specifications

General

RAM	4 GB
Flash Memory	4 GB
Ports	24 or 48 10/100/1000 Ethernet ports
Uplinks	4 x 1G SFP or 4 x 10G SFP+ (depending on model)
Stacking	Up to 9 switches with StackWise-160
Layer Support	Layer 2, Layer 3
Software	Cisco IOS Software
Power Supply	Internal power supply; optional redundant power supply available
Storage Temperature	-40°F to 158°F (-40°C to 70°C)