Field	Description
IGMP snooping	IGMP snooping status: · Enabled. · Disabled.
Drop-unknown	Status of dropping unknown multicast data: · Enabled. · Disabled.
Version	IGMP snooping version.
Host-aging-time	Aging timer for the dynamic member port.
Router-aging-time	Aging timer for the dynamic router port.
Max-response-time	Maximum response time for IGMP general queries.
Last-member-query-interval	Interval for sending IGMP group-specific queries.
Report-aggregation	Status of IGMP report suppression: · Enabled. · Disabled.
Dot1p-priority	802.1p priority for IGMP messages. If the priority is not configured, this field displays two hyphens (--).
Querier	Status of IGMP snooping querier: · Enabled. · Disabled.
Query-interval	Interval for sending IGMP general queries.
General-query source IP	Source IP address of IGMP general queries.
Special-query source IP	Source IP address of IGMP group-specific queries.
Report source IP	Source IP address of IGMP reports.
Leave source IP	Source IP address of IGMP leave messages.

display igmp-snooping group

Use display igmp-snooping group to display dynamic IGMP snooping forwarding entries.

Syntax

In standalone mode:

display igmp-snooping group [ group-address | source-address ] * [ vlan vlan-id ] [ verbose ] [ slot slot-number ]

In IRF mode:

display igmp-snooping group [ group-address | source-address ] * [ vlan vlan-id ] [ verbose ] [ chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

group-address: Specifies a multicast group by its IP address in the range of 224.0.1.0 to 239.255.255.255. If you do not specify a multicast group, this command displays dynamic IGMP snooping forwarding entries for all multicast groups.

source-address: Specifies a multicast source by its IP address. If you do not specify a multicast source, this command displays dynamic IGMP snooping forwarding entries for all multicast sources.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094. If you do not specify a VLAN, this command displays dynamic IGMP snooping forwarding entries for all VLANs.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays dynamic IGMP snooping forwarding entries for the MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device or specifies a PEX. The chassis-number argument represents the member ID of the IRF member device or the virtual chassis number of the PEX. The slot-number argument represents the slot number of the card or PEX. If you do not specify a card or PEX, this command displays dynamic IGMP snooping forwarding entries for the global active MPU. (In IRF mode.)

Examples

# Display detailed information about dynamic IGMP snooping forwarding entries for VLAN 2.

<Sysname> display igmp-snooping group vlan 2 verbose slot 1

Total 1 entries.

VLAN 2: Total 1 entries.

(0.0.0.0, 224.1.1.1)

Attribute: local port

FSM information: normal

Host slots (0 in total):

Host ports (1 in total):

GE1/0/2 (00:03:23)

Table 2 Command output

Field	Description
Total 1 entries	Total number of dynamic IGMP snooping forwarding entries.
VLAN 2: Total 1 entries	Total number of dynamic IGMP snooping forwarding entries in VLAN 2.
(0.0.0.0, 224.1.1.1)	(S, G) entry, where 0.0.0.0 in the S position means all multicast sources.
Attribute	Entry attribute: · global port—The entry has a global port. · local port—The entry has a port that resides on the specified card. · slot—The entry has a port that resides on a card other than the specified card.
FSM information	Finite state machine information of the entry: · delete—The entry attributes have been deleted. · dummy—The entry is a new temporary entry. · no info—No entry exists. · normal—The entry is a correct entry.
Host slots (0 in total)	Slot numbers and total number of the cards that have member ports, except the specified card or the MPU when no card is specified. (In standalone mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except the specified card or the MPU when no card is specified. (In IRF mode.)
Host ports (1 in total)	Member ports, and the total number of member ports.
(00:03:23)	Remaining aging time for the dynamic member port. For a global port (including Layer 2 aggregate interfaces), this field is always displayed. For a non-global port: · (In standalone mode.) This field is displayed when one of the following conditions exists: ¡ The port is on the specified card. ¡ The port is on the MPU and no card is specified. · (In IRF mode.) This field is displayed when one of the following conditions exists: ¡ The port is on the specified card. · The port is on the global active MPU and no card is specified.

Related commands

reset igmp-snooping group

display igmp-snooping router-port

Use display igmp-snooping router-port to display dynamic router port information.

Syntax

In standalone mode:

display igmp-snooping router-port [ vlan vlan-id ] [ slot slot-number ]

In IRF mode:

display igmp-snooping router-port [ vlan vlan-id ] [ chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094. If you do not specify a VLAN, this command displays dynamic router port information for all VLANs.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays dynamic router port information for the MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device or specifies a PEX. The chassis-number argument represents the member ID of the IRF member device or the virtual chassis number of the PEX. The slot-number argument represents the slot number of the card or PEX. If you do not specify a card or PEX, this command displays dynamic router port information for the global active MPU. (In IRF mode.)

Examples

# Display dynamic router port information for VLAN 2.

<Sysname> display igmp-snooping router-port vlan 2 slot 1

VLAN 2:

Router slots (0 in total):

Router ports (2 in total):

GE1/0/1 (00:01:30)

GE1/0/2 (00:00:23)

Table 3 Command output

Field	Description
VLAN 2	VLAN ID.
Router slots (0 in total)	Slot numbers and total number of the cards that have router ports, except the specified card or the MPU when no card is specified. (In standalone mode.) Chassis numbers, slot numbers, and total number of the cards that have router ports, except the specified card or the MPU when no card is specified. (In IRF mode.)
Router ports (2 in total)	Dynamic router ports, and the total number of dynamic router ports.
(00:01:30)	Remaining aging time for the dynamic router port. For a global port (including Layer 2 aggregate interfaces), this field is always displayed. For a non-global port: · (In standalone mode.) This field is displayed when one of the following conditions exists: ¡ The port is on the specified card. ¡ The port is on the MPU and no card is specified. · (In IRF mode.) This field is displayed when one of the following conditions exists: ¡ The port is on the specified card. · The port is on the global active MPU and no card is specified.

Related commands

reset igmp-snooping router-port

display igmp-snooping static-group

Use display igmp-snooping static-group to display static IGMP snooping forwarding entries.

Syntax

In standalone mode:

display igmp-snooping static-group [ group-address | source-address ] * [ vlan vlan-id ] [ verbose ] [ slot slot-number ]

In IRF mode:

display igmp-snooping static-group [ group-address | source-address ] * [ vlan vlan-id ] [ verbose ] [ chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

group-address: Specifies a multicast group by its IP address in the range of 224.0.1.0 to 239.255.255.255. If you do not specify a multicast group, this command displays static IGMP snooping forwarding entries for all multicast groups.

source-address: Specifies a multicast source by its IP address. If you do not specify a multicast source, this command displays static IGMP snooping forwarding entries for all multicast sources.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094. If you do not specify a VLAN, this command displays static IGMP snooping forwarding entries for all VLANs.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays static IGMP snooping forwarding entries for the MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device or specifies a PEX. The chassis-number argument represents the member ID of the IRF member device or the virtual chassis number of the PEX. The slot-number argument represents the slot number of the card or PEX. If you do not specify a card or PEX, this command displays static IGMP snooping forwarding entries for the global active MPU. (In IRF mode.)

Examples

# Display detailed information about static IGMP snooping forwarding entries for VLAN 2.

<Sysname> display igmp-snooping static-group vlan 2 verbose

Total 1 entries.

VLAN 2: Total 1 entries.

(0.0.0.0, 224.1.1.1)

Attribute: local port

FSM information: normal

Host slots (1 in total):

Host ports (1 in total):

GE1/0/2

Table 4 Command output

Field	Description
Total 1 entries	Total number of static IGMP snooping forwarding entries.
VLAN 2: Total 1 entries	Total number of static IGMP snooping forwarding entries in VLAN 2.
(0.0.0.0, 224.1.1.1)	(S, G) entry, where 0.0.0.0 in the S position means all multicast sources.
Attribute	Entry attribute: · global port—The entry has a global port. · local port—The entry has a port that resides on the specified card. · slot—The entry has a port that resides on a card other than the specified card.
FSM information	Finite state machine information of the entry: · delete—The entry attributes have been deleted. · dummy—The entry is a new temporary entry. · no info—No entry exists. · normal—The entry is a correct entry.
Host slots (1 in total)	Slot numbers and total number of the cards that have static member ports, except the specified card or the MPU when no card is specified. (In standalone mode.) Chassis numbers, slot numbers, and total number of the cards that have static member ports, except the specified card or the MPU when no card is specified. (In IRF mode.)
Host ports (1 in total)	Member ports, and the total number of member ports.

display igmp-snooping static-router-port

Use display igmp-snooping static-router-port to display static router port information.

Syntax

In standalone mode:

display igmp-snooping static-router-port [ vlan vlan-id ] [ slot slot-number ]

In IRF mode:

display igmp-snooping static-router-port [ vlan vlan-id ] [ chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays static router port information for the MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device or specifies a PEX. The chassis-number argument represents the member ID of the IRF member device or the virtual chassis number of the PEX. The slot-number argument represents the slot number of the card or PEX. If you do not specify a card or PEX, this command displays static router port information for the global active MPU. (In IRF mode.)

Examples

# Display static router port information for VLAN 2.

<Sysname> display igmp-snooping static-router-port vlan 2

VLAN 2:

Router slots (0 in total):

Router ports (2 in total):

GE1/0/1

GE1/0/2

Table 5 Command output

Field	Description
VLAN 2	VLAN ID.
Router slots (0 in total)	Slot numbers and total number of the cards that have static router ports, except the specified card or the MPU when no card is specified. (In standalone mode.) Chassis numbers, slot numbers, and total number of the cards that have static router ports, except the specified card or the MPU when no card is specified. (In IRF mode.)
Router ports (2 in total)	Static router ports, and the total number of static router ports.

display igmp-snooping statistics

Use display igmp-snooping statistics to display statistics for the IGMP messages learned through IGMP snooping.

Syntax

display igmp-snooping statistics

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Examples

# Display statistics for the IGMP messages learned through IGMP snooping.

<Sysname> display igmp-snooping statistics

Received IGMP general queries: 0

Received IGMPv1 reports: 0

Received IGMPv2 reports: 19

Received IGMP leaves: 0

Received IGMPv2 specific queries: 0

Sent IGMPv2 specific queries: 0

Received IGMPv3 reports: 1

Received IGMPv3 reports with right and wrong records: 0

Received IGMPv3 specific queries: 0

Received IGMPv3 specific sg queries: 0

Sent IGMPv3 specific queries: 0

Sent IGMPv3 specific sg queries: 0

Received error IGMP messages: 19

Table 6 Command output

Field	Description
general queries	Number of IGMP general queries.
specific queries	Number of IGMP group-specific queries.
reports	Number of IGMP reports.
leaves	Number of IGMP leave messages.
reports with right and wrong records	Number of IGMP reports with correct and incorrect records.
specific sg queries	Number of IGMP group-and-source-specific queries.
error IGMP messages	Number of IGMP messages with errors.

Related commands

reset igmp-snooping statistics

display l2-multicast ip

Use display l2-multicast ip to display information about Layer 2 IP multicast groups.

Syntax

In standalone mode:

display l2-multicast ip [ group group-address | source source-address ] * [ vlan vlan-id ] [ slot slot-number ]

In IRF mode:

display l2-multicast ip [ group group-address | source source-address ] * [ vlan vlan-id ] [ chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

group group-address: Specifies a multicast group by its IP address. If you do not specify a multicast group, this command displays information about all Layer 2 IP multicast groups.

source source-address: Specifies a multicast source by its IP address. If you do not specify a multicast source, this command displays information about Layer 2 IP multicast groups for all multicast sources.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094. If you do not specify a VLAN, this command displays information about Layer 2 IP multicast groups for all VLANs.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays information about Layer 2 IP multicast groups for the MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device or specifies a PEX. The chassis-number argument represents the member ID of the IRF member device or the virtual chassis number of the PEX. The slot-number argument represents the slot number of the card or PEX. If you do not specify a card or PEX, this command displays information about Layer 2 IP multicast groups for the global active MPU. (In IRF mode.)

Examples

# Display information about Layer 2 IP multicast groups for VLAN 2.

<Sysname> display l2-multicast ip vlan 2

Total 1 entries.

VLAN 2: Total 1 IP entries.

(0.0.0.0, 224.1.1.1)

Attribute: static, success

Host slots (1 in total):

Host ports (1 in total):

GE1/0/1 (S, SUC)

Table 7 Command output

Field	Description
Total 1 entries	Total number of Layer 2 IP multicast groups.
VLAN 2: Total 1 IP entries	Total number of Layer 2 IP multicast groups in VLAN 2.
(0.0.0.0, 224.1.1.1)	(S, G) entry, where 0.0.0.0 in the S position means all multicast sources.
Attribute	Entry attribute: · dynamic—The entry is created by a dynamic protocol. · static—The entry is created by a static protocol. · pim—The entry is created by PIM. · kernel—The entry is obtained from the kernel. · success—Processing succeeds. · fail—Processing fails.
Host slots (1 in total)	Slot numbers and total number of the cards that have member ports, except the specified card or the MPU when no card is specified. (In standalone mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except the specified card or the MPU when no card is specified. (In IRF mode.)
Host ports (1 in total)	Member ports, and the total number of member ports.
(S, SUC)	Port attribute: · D—Dynamic port. · S—Static port. · P—PIM port. · K—Port obtained from the kernel. · R—Port learned from (, ) entries. · W—Port learned from (*, G) entries. · SUC—Processing succeeds. · F—Processing fails.

display l2-multicast ip forwarding

Use display l2-multicast ip forwarding to display Layer 2 IP multicast group entries.

Syntax

In standalone mode:

display l2-multicast ip forwarding [ group group-address | source source-address ] * [ vlan vlan-id ] [ slot slot-number ]

In IRF mode:

display l2-multicast ip forwarding [ group group-address | source source-address ] * [ vlan vlan-id ] [ chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

group group-address: Specifies a multicast group by its IP address. If you do not specify a multicast group, this command displays Layer 2 IP multicast group entries for all multicast groups.

source source-address: Specifies a multicast source by its IP address. If you do not specify a multicast source, this command displays Layer 2 IP multicast group entries for all multicast sources.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094. If you do not specify a VLAN, this command displays Layer 2 IP multicast group entries for all VLANs.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays Layer 2 IP multicast group entries for the MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device or specifies a PEX. The chassis-number argument represents the member ID of the IRF member device or the virtual chassis number of the PEX. The slot-number argument represents the slot number of the card or PEX. If you do not specify a card or PEX, this command displays Layer 2 IP multicast group entries for the global active MPU. (In IRF mode.)

Examples

# Display Layer 2 IP multicast group entries for VLAN 2.

<Sysname> display l2-multicast ip forwarding vlan 2

Total 1 entries.

VLAN 2: Total 1 IP entries.

(0.0.0.0, 224.1.1.1)

Host slots (1 in total):

Host ports (3 in total):

GE1/0/1

GE1/0/2

GE1/0/3

Table 8 Command output

Field	Description
Total 1 entries	Total number of Layer 2 IP multicast group entries.
VLAN 2: Total 1 IP entries	Total number of Layer 2 IP multicast group entries in VLAN 2.
(0.0.0.0, 224.1.1.1)	(S, G) entry, where 0.0.0.0 in the S position means all multicast sources.
Host slots (1 in total)	Slot numbers and total number of the cards that have member ports, except the specified card or the MPU when no card is specified. (In standalone mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except the specified card or the MPU when no card is specified. (In IRF mode.)
Host ports (3 in total)	Member ports, and the total number of member ports.

display l2-multicast mac

Use display l2-multicast mac to display information about Layer 2 MAC multicast groups.

Syntax

In standalone mode:

display l2-multicast mac [ mac-address ] [ vlan vlan-id ] [ slot slot-number ]

In IRF mode:

display l2-multicast mac [ mac-address ] [ vlan vlan-id ] [ chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

mac-address: Specifies a MAC multicast group by its multicast MAC address. If you do not specify a MAC multicast group, this command displays information about all Layer 2 MAC multicast groups.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094. If you do not specify a VLAN, this command displays information about Layer 2 MAC multicast groups for all VLANs.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays information about Layer 2 MAC multicast groups for the MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device or specifies a PEX. The chassis-number argument represents the member ID of the IRF member device or the virtual chassis number of the PEX. The slot-number argument represents the slot number of the card or PEX. If you do not specify a card or PEX, this command displays information about Layer 2 MAC multicast groups for the global active MPU. (In IRF mode.)

Examples

# Display information about Layer 2 MAC multicast groups for VLAN 2.

<Sysname> display l2-multicast mac vlan 2

Total 1 MAC entries.

VLAN 2: Total 1 MAC entries.

MAC group address: 0100-5e01-0101

Attribute: success

Host slots (1 in total):

Host ports (1 in total):

GE1/0/1

Table 9 Command output

Field	Description
Total 1 MAC entries	Total number of Layer 2 MAC multicast groups.
VLAN 2: Total 1 MAC entries	Total number of Layer 2 MAC multicast groups in VLAN 2.
Attribute	Entry attribute: · success—Processing succeeds. · fail—Processing fails.
Host slots (1 in total)	Slot numbers and total number of the cards that have member ports, except the specified card or the MPU when no card is specified. (In standalone mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except the specified card or the MPU when no card is specified. (In IRF mode.)
Host ports (1 in total)	Member ports, and the total number of member ports.

display l2-multicast mac forwarding

Use display l2-multicast mac forwarding to display Layer 2 multicast MAC forwarding entries.

Syntax

In standalone mode:

display l2-multicast mac forwarding [ mac-address ] [ vlan vlan-id ] [ slot slot-number ]

In IRF mode:

display l2-multicast mac forwarding [ mac-address ] [ vlan vlan-id ] [ chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

mac-address: Specifies a MAC multicast group by its MAC address. If you do not specify a MAC multicast group, this command displays Layer 2 multicast MAC forwarding entries for all MAC multicast groups.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094. If you do not specify a VLAN, this command displays Layer 2 multicast MAC forwarding entries for all VLANs.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays Layer 2 multicast MAC forwarding entries for the MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device or specifies a PEX. The chassis-number argument represents the member ID of the IRF member device or the virtual chassis number of the PEX. The slot-number argument represents the slot number of the card or PEX. If you do not specify a card or PEX, this command displays Layer 2 multicast MAC forwarding entries for the global active MPU. (In IRF mode.)

Examples

# Display Layer 2 multicast MAC forwarding entries for VLAN 2.

<Sysname> display l2-multicast mac forwarding vlan 2

Total 1 MAC entries.

VLAN 2: Total 1 MAC entries.

MAC group address: 0100-5e01-0101

Host slots (1 in total):

Host ports (3 in total):

GE1/0/1

GE1/0/2

GE1/0/3

Table 10 Command output

Field	Description
Total 1 MAC entries	Total number of Layer 2 multicast MAC forwarding entries.
VLAN 2: Total 1 MAC entries	Total number of Layer 2 multicast MAC forwarding entries in VLAN 2.
MAC group address	Address of the MAC multicast group.
Host slots (1 in total)	Slot numbers and total number of the cards that have member ports, except the specified card or the MPU when no card is specified. (In standalone mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except the specified card or the MPU when no card is specified. (In IRF mode.)
Host ports (3 in total)	Member ports, and the total number of member ports.

dot1p-priority (IGMP-snooping view)

Use dot1p-priority to set the 802.1p priority for IGMP messages globally.

Use undo dot1p-priority to restore the default.

Syntax

dot1p-priority priority-number

undo dot1p-priority

Default

The 802.1p priority for IGMP messages is not configured.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

priority-number: Specifies an 802.1p priority for IGMP messages, in the range of 0 to 7. The greater the value, the higher the priority.

Usage guidelines

You can set the 802.1p priority globally for all VLANs in IGMP-snooping view or for a VLAN in VLAN view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# Set the 802.1p priority for IGMP messages to 3 globally.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] dot1p-priority 3

Related commands

igmp-snooping dot1p-priority

drop-unknown (IGMP-snooping view)

Use drop-unknown to enable dropping unknown multicast data globally.

Use undo drop-unknown to disable dropping unknown multicast data globally.

Syntax

drop-unknown

undo drop-unknown

Default

Dropping unknown multicast data is disabled, and unknown multicast data is flooded.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

To avoid multicast forwarding exceptions, do not globally enable dropping unknown multicast data if the switch joins an IRF 3 system. For more information about IRF 3, see Virtualization Technologies Configuration Guide.

You can enable this feature globally for all VLANs in IGMP-snooping view or for a VLAN in VLAN view.

The igmp-snooping drop-unknown command and the drop-unknown command in IGMP-snooping view are mutually exclusive. You cannot configure them on the same switch.

Examples

# Enable dropping unknown multicast data globally.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] drop-unknown

Related commands

igmp-snooping drop-unknown

enable (IGMP-snooping view)

Use enable to enable IGMP snooping for VLANs.

Use undo enable to disable IGMP snooping for VLANs.

Syntax

enable vlan vlan-list

undo enable vlan vlan-list

Default

IGMP snooping is disabled for a VLAN.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

Usage guidelines

You must enable IGMP snooping globally before you enable IGMP snooping for VLANs.

You can enable IGMP snooping for the specified VLANs in IGMP-snooping view or for a VLAN in VLAN view. For a VLAN, the configuration in IGMP-snooping view has the same priority as the configuration in VLAN view, and the most recent configuration takes effect.

Examples

# Enable IGMP snooping globally, and enable IGMP snooping for VLAN 2 through VLAN 10.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] enable vlan 2 to 10

Related commands

· igmp-snooping

· igmp-snooping enable

entry-limit (IGMP-snooping view)

Use entry-limit to globally set the maximum number of IGMP snooping forwarding entries, including dynamic entries and static entries.

Use undo entry-limit to restore the default.

Syntax

entry-limit limit

undo entry-limit

Default

The maximum number of IGMP snooping forwarding entries is 4294967295.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

limit: Specifies the maximum number of IGMP snooping forwarding entries, in the range of 0 to 4294967295.

Examples

# Set the global maximum number of IGMP snooping forwarding entries to 512.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] entry-limit 512

fast-leave (IGMP-snooping view)

Use fast-leave to enable fast-leave processing globally.

Use undo fast-leave to disable fast-leave processing globally.

Syntax

fast-leave [ vlan vlan-list ]

undo fast-leave [ vlan vlan-list ]

Default

Fast-leave processing is disabled.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

Usage guidelines

The fast-leave processing feature enables the switch to immediately remove a port from the forwarding entry for a multicast group when the port receives a leave message.

You can enable fast-leave processing globally for all ports in IGMP-snooping view or for a port in interface view. For a port, the port-specific configuration takes priority over the global configuration.

Examples

# Globally enable fast-leave processing for VLAN 2.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] fast-leave vlan 2

Related commands

igmp-snooping fast-leave

group-policy (IGMP-snooping view)

Use group-policy to configure a global multicast group policy to control the multicast groups that hosts can join.

Use undo group-policy to delete global multicast group policies.

Syntax

group-policy acl-number [ vlan vlan-list ]

undo group-policy [ vlan vlan-list ]

Default

No global multicast group policies exist. Hosts can join any multicast groups.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

acl-number: Specifies an IPv4 basic or advanced ACL by its number in the range of 2000 to 3999. Receiver hosts can join only the multicast groups that the ACL permits. If the ACL does not exist or the ACL does not have valid rules, receiver hosts cannot join multicast groups.

Usage guidelines

A multicast group policy filters IGMP reports to control the multicast groups that hosts can join.

This command does not take effect on a static member port, because the static member port does not send IGMP messages.

When you configure a rule in the IPv4 ACL, follow these restrictions and guidelines:

· For the rule to take effect, do not specify the vpn-instance vpn-instance option.

· In a basic ACL, the source source-address source-wildcard option specifies a multicast group address.

· In an advanced ACL, the source source-address source-wildcard option specifies a multicast source address. The destination dest-address dest-wildcard option specifies a multicast group address.

To match the following IGMP reports, set the source source-address source-wildcard option to 0.0.0.0:

¡ IGMPv1 and IGMPv2 reports.

¡ IGMPv3 IS_EX and IGMPv3 TO_EX reports that do not carry multicast source addresses.

· Among the other optional parameters, only the fragment keyword and the time-range time-range-name option take effect.

You can configure different ACLs for different VLANs. If you configure multiple ACLs for the same VLAN, the most recent configuration takes effect.

You can configure a multicast group policy globally for all ports in IGMP-snooping view or for a port in interface view. For a port, the port-specific configuration takes priority over the global configuration.

Examples

# Configure a multicast group policy globally for VLAN 2 so that the hosts in VLAN 2 can join only multicast group 225.1.1.1.

<Sysname> system-view

[Sysname] acl number 2000

[Sysname-acl-basic-2000] rule permit source 225.1.1.1 0

[Sysname-acl-basic-2000] quit

[Sysname] igmp-snooping

[Sysname-igmp-snooping] group-policy 2000 vlan 2

Related commands

igmp-snooping group-policy

host-aging-time (IGMP-snooping view)

Use host-aging-time to set the aging timer for dynamic member ports globally.

Use undo host-aging-time to restore the default.

Syntax

host-aging-time interval

undo host-aging-time

Default

The aging timer for dynamic member ports is 260 seconds.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies an aging timer for dynamic member ports, in the range of 1 to 8097894 seconds.

Usage guidelines

You can set the timer globally for all VLANs in IGMP-snooping view or for a VLAN in VLAN view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# Set the global aging timer for dynamic member ports to 300 seconds.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] host-aging-time 300

Related commands

igmp-snooping host-aging-time

igmp-snooping

Use igmp-snooping to enable IGMP snooping globally and enter IGMP-snooping view.

Use undo igmp-snooping to disable IGMP snooping globally.

Syntax

igmp-snooping

undo igmp-snooping

Default

IGMP snooping is globally disabled.

Views

System view

Predefined user roles

network-admin

mdc-admin

Examples

# Enable IGMP snooping globally, and enter IGMP-snooping view.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping]

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

igmp-snooping dot1p-priority

Use igmp-snooping dot1p-priority to set the 802.1p priority for IGMP messages in a VLAN.

Use undo igmp-snooping dot1p-priority to restore the default.

Syntax

igmp-snooping dot1p-priority priority-number

undo igmp-snooping dot1p-priority

Default

The 802.1p priority for IGMP messages is not configured.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

priority-number: Specifies an 802.1p priority for IGMP messages, in the range of 0 to 7. The greater the value, the higher the priority.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

You can set the 802.1p priority for a VLAN in VLAN view or globally for all VLANs in IGMP-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# In VLAN 2, enable IGMP snooping, and set the 802.1p priority for IGMP messages to 3.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping dot1p-priority 3

Related commands

· dot1p-priority (IGMP-snooping view)

· enable (IGMP-snooping view)

· igmp-snooping enable

igmp-snooping drop-unknown

Use igmp-snooping drop-unknown to enable dropping unknown multicast data for a VLAN.

Use undo igmp-snooping drop-unknown to disable dropping unknown multicast data for a VLAN.

Syntax

igmp-snooping drop-unknown

undo igmp-snooping drop-unknown

Default

Dropping unknown multicast data in a VLAN is disabled, and unknown multicast data is flooded in the VLAN.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

You can enable this feature for a VLAN in VLAN view or globally for all VLANs in IGMP-snooping view.

The igmp-snooping drop-unknown command and the drop-unknown command in IGMP-snooping view are mutually exclusive. You cannot configure them on the same switch.

Examples

# In VLAN 2, enable IGMP snooping, and enable dropping unknown multicast data.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping drop-unknown

Related commands

· drop-unknown (IGMP-snooping view)

· enable (IGMP-snooping view)

· igmp-snooping enable

igmp-snooping enable

Use igmp-snooping enable to enable IGMP snooping for a VLAN.

Use undo igmp-snooping enable to disable IGMP snooping for a VLAN.

Syntax

igmp-snooping enable

undo igmp-snooping enable

Default

IGMP snooping is disabled in a VLAN.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

You must enable IGMP snooping globally before you execute this command.

You can enable IGMP snooping for a VLAN in VLAN view or for the specified VLANs in IGMP-snooping view. For a VLAN, the configuration in VLAN view has the same priority as the configuration in IGMP-snooping view, and the most recent configuration takes effect.

Examples

# Enable IGMP snooping globally, and enable IGMP snooping for VLAN 2.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

Related commands

· enable (IGMP-snooping view)

· igmp-snooping

igmp-snooping fast-leave

Use igmp-snooping fast-leave to enable fast-leave processing on a port.

Use undo igmp-snooping fast-leave to disable fast-leave processing on a port.

Syntax

igmp-snooping fast-leave [ vlan vlan-list ]

undo igmp-snooping fast-leave [ vlan vlan-list ]

Default

Fast-leave processing is disabled on a port.

Views

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

Usage guidelines

The fast-leave processing feature enables the switch to immediately remove a port from the forwarding entry for a multicast group when the port receives a leave message.

You can enable fast-leave processing for a port in interface view or globally for all ports in IGMP-snooping view. For a port, the port-specific configuration takes priority over the global configuration.

Examples

# On GigabitEthernet 1/0/1, enable IGMP snooping fast-leave processing for VLAN 2.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] igmp-snooping fast-leave vlan 2

Related commands

fast-leave (IGMP-snooping view)

igmp-snooping general-query source-ip

Use igmp-snooping general-query source-ip to configure a source IP address for IGMP general queries.

Use undo igmp-snooping general-query source-ip to restore the default.

Syntax

igmp-snooping general-query source-ip ip-address

undo igmp-snooping general-query source-ip

Default

In a VLAN, the source IP address of IGMP general queries is the IP address of the current VLAN interface. If the current VLAN interface does not have an IP address, the source IP address is 0.0.0.0.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

ip-address: Specifies a source IP address for IGMP general queries.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

Examples

# In VLAN 2, enable IGMP snooping, and specify 10.1.1.1 as the source IP address of IGMP general queries.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping general-query source-ip 10.1.1.1

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

igmp-snooping group-limit

Use igmp-snooping group-limit to set the maximum number of multicast groups that a port can join.

Use undo igmp-snooping group-limit to restore the default.

Syntax

igmp-snooping group-limit limit [ vlan vlan-list ]

undo igmp-snooping group-limit [ vlan vlan-list ]

Default

The maximum number of multicast groups that a port can join is 4294967295.

Views

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

limit: Specifies the maximum number of multicast groups that a port can join, in the range of 0 to 4294967295.

Usage guidelines

This command takes effect only on the multicast groups that a port joins dynamically.

Examples

# On GigabitEthernet 1/0/1, set the maximum number of multicast groups the port can join in VLAN 2 to 10.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] igmp-snooping group-limit 10 vlan 2

igmp-snooping group-policy

Use igmp-snooping group-policy to configure a multicast group policy on a port to control the multicast groups that hosts can join.

Use undo igmp-snooping group-policy to delete multicast group policies on a port.

Syntax

igmp-snooping group-policy acl-number [ vlan vlan-list ]

undo igmp-snooping group-policy [ vlan vlan-list ]

Default

No multicast group policies exist on a port. Hosts attached to the port can join any multicast groups.

Views

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

Usage guidelines

A multicast group policy filters IGMP reports to control the multicast groups that hosts can join.

This command does not take effect on a static member port, because the static member port does not send IGMP messages.

When you configure a rule in the IPv4 ACL, follow these restrictions and guidelines:

· For the rule to take effect, do not specify the vpn-instance vpn-instance option.

· In a basic ACL, the source source-address source-wildcard option specifies a multicast group address.

· In an advanced ACL, the source source-address source-wildcard option specifies a multicast source address. The destination dest-address dest-wildcard option specifies a multicast group address.

To match the following IGMP reports, set the source source-address source-wildcard option to 0.0.0.0:

¡ IGMPv1 and IGMPv2 reports.

¡ IGMPv3 IS_EX and IGMPv3 TO_EX reports that do not carry multicast source addresses.

· Among the other optional parameters, only the fragment keyword and the time-range time-range-name option take effect.

You can configure different ACLs on a port for different VLANs. If you configure multiple ACLs on a port for the same VLAN, the most recent configuration takes effect.

You can configure a multicast group policy for a port in interface view or globally for all ports in IGMP-snooping view. For a port, the port-specific configuration takes priority over the global configuration.

Examples

# On GigabitEthernet 1/0/1, configure a multicast group policy for VLAN 2 so that hosts in VLAN 2 can join only multicast group 225.1.1.1.

<Sysname> system-view

[Sysname] acl number 2000

[Sysname-acl-basic-2000] rule permit source 225.1.1.1 0

[Sysname-acl-basic-2000] quit

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] igmp-snooping group-policy 2000 vlan 2

Related commands

group-policy (IGMP-snooping view)

igmp-snooping host-aging-time

Use igmp-snooping host-aging-time to set the aging timer for dynamic member ports in a VLAN.

Use undo igmp-snooping host-aging-time to restore the default.

Syntax

igmp-snooping host-aging-time interval

undo igmp-snooping host-aging-time

Default

The aging timer for dynamic member ports is 260 seconds.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies an aging timer for dynamic member ports, in the range of 1 to 8097894 seconds.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

You can set the timer for a VLAN in VLAN view or globally for all VLANs in IGMP-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# In VLAN 2, enable IGMP snooping, and set the aging timer for dynamic member ports to 300 seconds.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping host-aging-time 300

Related commands

· enable (IGMP-snooping view)

· host-aging-time (IGMP-snooping view)

· igmp-snooping enable

igmp-snooping host-join

Use igmp-snooping host-join to configure a port as a simulated member host for a multicast group.

Use undo igmp-snooping host-join to remove the simulated joining configuration.

Syntax

igmp-snooping host-join group-address [ source-ip source-address ] vlan vlan-id

undo igmp-snooping host-join { group-address [ source-ip source-address ] vlan vlan-id | all }

Default

A port is not configured as a simulated member host for multicast groups.

Views

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

group-address: Specifies a multicast group in the range of 224.0.1.0 to 239.255.255.255.

source-ip source-address: Specifies a multicast source by its IP address. If you specify a multicast source, this command configures the port as a simulated member host for a multicast source and group. If you do not specify a multicast source, this command configures the port as a simulated member host for a multicast group. This option takes effect on IGMPv3 snooping devices.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094.

all: Specifies all multicast groups.

Usage guidelines

The version of IGMP running on a simulated member host is the same as the version of IGMP snooping running on the port. The port ages out in the same way as a dynamic member port.

Examples

# Configure GigabitEthernet 1/0/1 as a simulated member host of the multicast source and group (1.1.1.1, 232.1.1.1) in VLAN 2.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping version 3

[Sysname-vlan2] quit

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] igmp-snooping host-join 232.1.1.1 source-ip 1.1.1.1 vlan 2

igmp-snooping last-member-query-interval

Use igmp-snooping last-member-query-interval to set the IGMP last member query interval for a VLAN.

Use undo igmp-snooping last-member-query-interval to restore the default.

Syntax

igmp-snooping last-member-query-interval interval

undo igmp-snooping last-member-query-interval

Default

The IGMP last member query interval is 1 second.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies an IGMP last member query interval in the range of 1 to 25 seconds.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

You can set the interval for a VLAN in VLAN view or globally for all VLANs in IGMP-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# In VLAN 2, enable IGMP snooping, and set the IGMP last member query interval to 3 seconds.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping last-member-query-interval 3

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

· last-member-query-interval (IGMP-snooping view)

igmp-snooping leave source-ip

Use igmp-snooping leave source-ip to configure a source IP address for IGMP leave messages.

Use undo igmp-snooping leave source-ip to restore the default.

Syntax

igmp-snooping leave source-ip ip-address

undo igmp-snooping leave source-ip

Default

The source IP address of IGMP leave messages is the IP address of the current VLAN interface. If the current VLAN interface does not have an IP address, the source IP address is 0.0.0.0.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

ip-address: Specifies a source IP address for IGMP leave messages.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

Examples

# In VLAN 2, enable IGMP snooping, and configure the source IP address of IGMP leave messages addressed to 10.1.1.1.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping leave source-ip 10.1.1.1

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

igmp-snooping max-response-time

Use igmp-snooping max-response-time to set the maximum response time for IGMP general queries in a VLAN.

Use undo igmp-snooping max-response-time to restore the default.

Syntax

igmp-snooping max-response-time interval

undo igmp-snooping max-response-time

Default

The maximum response time for IGMP general queries is 10 seconds.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies the maximum response time for IGMP general queries, in the range of 1 to 3174 seconds.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

To avoid mistakenly deleting multicast group members, set the maximum response time for IGMP general queries to be less than the IGMP general query interval.

You can set the time for a VLAN in VLAN view or globally for all VLANs in IGMP-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# In VLAN 2, enable IGMP snooping, and set the maximum response time for IGMP general queries to 5 seconds.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping max-response-time 5

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

· igmp-snooping query-interval

· max-response-time (IGMP-snooping view)

igmp-snooping overflow-replace

Use igmp-snooping overflow-replace to enable the multicast group replacement feature on a port.

Use undo igmp-snooping overflow-replace to disable the multicast group replacement feature on a port.

Syntax

igmp-snooping overflow-replace [ vlan vlan-list ]

undo igmp-snooping overflow-replace [ vlan vlan-list ]

Default

The multicast group replacement feature is disabled.

Views

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

Usage guidelines

This command takes effect only on the multicast groups that a port joins dynamically.

You can enable the multicast group replacement feature for a port in interface view or globally for all ports in IGMP-snooping view. For a port, the port-specific configuration takes priority over the global configuration.

Examples

# On GigabitEthernet 1/0/1, enable the multicast group replacement feature for VLAN 2.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] igmp-snooping overflow-replace vlan 2

Related commands

overflow-replace (IGMP-snooping view)

igmp-snooping querier

Use igmp-snooping querier to enable the IGMP snooping querier.

Use undo igmp-snooping querier to disable the IGMP snooping querier.

Syntax

igmp-snooping querier

undo igmp-snooping querier

Default

The IGMP snooping querier is disabled.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

This command takes effect on a sub-VLAN only after you remove the sub-VLAN from the multicast VLAN.

Examples

# In VLAN 2, enable IGMP snooping, and enable the IGMP snooping querier.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping querier

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

· subvlan (multicast VLAN view)

igmp-snooping query-interval

Use igmp-snooping query-interval to set the IGMP general query interval for a VLAN.

Use undo igmp-snooping query-interval to restore the default.

Syntax

igmp-snooping query-interval interval

undo igmp-snooping query-interval

Default

The IGMP general query interval is 125 seconds.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies an IGMP general query interval in the range of 2 to 31744 seconds.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

To avoid mistakenly deleting multicast group members, set the IGMP general query interval to be greater than the maximum response time for IGMP general queries.

Examples

# In VLAN 2, enable IGMP snooping, and set the IGMP general query interval to 20 seconds.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping query-interval 20

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

· igmp-snooping max-response-time

· igmp-snooping querier

· max-response-time

igmp-snooping report source-ip

Use igmp-snooping report source-ip to configure a source IP address for IGMP reports.

Use undo igmp-snooping report source-ip to restore the default.

Syntax

igmp-snooping report source-ip ip-address

undo igmp-snooping report source-ip

Default

The source IP address of IGMP reports is the IP address of the current VLAN interface. If the current VLAN interface does not have an IP address, the source IP address is 0.0.0.0.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

ip-address: Specifies a source IP address for IGMP reports.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

Examples

# In VLAN 2, enable IGMP snooping, and configure the source IP address of IGMP reports to 10.1.1.1.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping report source-ip 10.1.1.1

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

igmp-snooping router-aging-time

Use igmp-snooping router-aging-time to set the aging timer for dynamic router ports in a VLAN.

Use undo igmp-snooping router-aging-time to restore the default.

Syntax

igmp-snooping router-aging-time interval

undo igmp-snooping router-aging-time

Default

The aging timer for dynamic router ports in a VLAN is 260 seconds.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies an aging timer for dynamic router ports, in the range of 1 to 8097894 seconds.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

You can set the timer for a VLAN in VLAN view or globally for all VLANs in IGMP-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# In VLAN 2, enable IGMP snooping, and set the aging timer for dynamic router ports to 100 seconds.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping router-aging-time 100

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

· router-aging-time (IGMP-snooping view)

igmp-snooping router-port-deny

Use igmp-snooping router-port-deny to disable a port from becoming a dynamic router port.

Use undo igmp-snooping router-port-deny to restore the default.

Syntax

igmp-snooping router-port-deny [ vlan vlan-list ]

undo igmp-snooping router-port-deny [ vlan vlan-list ]

Default

A port can become a dynamic router port.

Views

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

vlan vlan-list: Specifies a space-separated list of up to 10 VLAN items. Each item specifies a VLAN by its ID or a range of VLANs in the form of start-vlan-id to end-vlan-id. The VLAN ID is in the range of 1 to 4094. If you specify VLANs, this command takes effect only when the port belongs to the specified VLANs. If you do not specify a VLAN, this command takes effect on all VLANs to which the port belongs.

Examples

# Disable GigabitEthernet 1/0/1 from becoming a dynamic router port in VLAN 2.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] igmp-snooping router-port-deny vlan 2

igmp-snooping source-deny

Use igmp-snooping source-deny to enable multicast source port filtering on a port to discard all multicast data packets.

Use undo igmp-snooping source-deny to disable multicast source port filtering on a port.

Syntax

igmp-snooping source-deny

undo igmp-snooping source-deny

Default

Multicast source port filtering is disabled.

Views

Layer 2 Ethernet interface view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

You can enable this feature for a port in interface view or for the specified ports in IGMP-snooping view. For a port, the configuration in interface view has the same priority as the configuration in IGMP-snooping view, and the most recent configuration takes effect.

Examples

# Enable source port filtering for multicast data on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] igmp-snooping source-deny

Related commands

source-deny (IGMP-snooping view)

igmp-snooping special-query source-ip

Use igmp-snooping special-query source-ip to configure a source IP address for IGMP group-specific queries.

Use undo igmp-snooping special-query source-ip to restore the default.

Syntax

igmp-snooping special-query source-ip ip-address

undo igmp-snooping special-query source-ip

Default

In a VLAN, the source IP address of IGMP group-specific queries is one of the following:

· The source address of IGMP group-specific queries if the IGMP snooping querier has received IGMP general queries.

· The IP address of the current VLAN interface if the IGMP snooping querier does not receive an IGMP general query.

· 0.0.0.0 if the IGMP snooping querier does not receive an IGMP general query and the current VLAN interface does not have an IP address.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

ip-address: Specifies a source IP address for IGMP group-specific queries.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

Examples

# In VLAN 2, enable IGMP snooping, and configure the source IP address of IGMP group-specific queries as 10.1.1.1.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping special-query source-ip 10.1.1.1

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

igmp-snooping static-group

Use igmp-snooping static-group to configure a port as a static member port of a multicast group.

Use undo igmp-snooping static-group to remove a static member port.

Syntax

igmp-snooping static-group group-address [ source-ip source-address ] vlan vlan-id

undo igmp-snooping static-group { group-address [ source-ip source-address ] vlan vlan-id | all }

Default

A port is not a static member port.

Views

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

group-address: Specifies a multicast group address in the range of 224.0.1.0 to 239.255.255.255.

source-ip source-address: Specifies a multicast source by its IP address. If you specify a multicast source, this command configures the port as a static member port for a multicast source and group. If you do not specify a multicast source, this command configures the port as a static member port for a multicast group. This option takes effect on IGMPv3 snooping devices.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094.

all: Specifies all multicast groups.

Examples

# Configure GigabitEthernet 1/0/1 as a static member port of the multicast source and group (1.1.1.1, 225.0.0.1) in VLAN 2.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping version 3

[Sysname-vlan2] quit

[Sysname] interface Gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] igmp-snooping static-group 225.0.0.1 source-ip 1.1.1.1 vlan 2

igmp-snooping static-router-port

Use igmp-snooping static-router-port to configure a port as a static router port.

Use undo igmp-snooping static-router-port to remove a static router port.

Syntax

igmp-snooping static-router-port vlan vlan-id

undo igmp-snooping static-router-port { all | vlan vlan-id }

Default

A port is not a static router port.

Views

Layer 2 Ethernet interface view, Layer 2 aggregate interface view

Predefined user roles

network-admin

mdc-admin

Parameters

all: Specifies all VLANs.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094.

Examples

# Configure GigabitEthernet 1/0/1 as a static router port in VLAN 2.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] igmp-snooping static-router-port vlan 2

igmp-snooping version

Use igmp-snooping version to specify an IGMP snooping version for a VLAN.

Use undo igmp-snooping version to restore the default.

Syntax

igmp-snooping version version-number

undo igmp-snooping version

Default

The IGMP snooping version in a VLAN is 2.

Views

VLAN view

Predefined user roles

network-admin

mdc-admin

Parameters

version-number: Specifies an IGMP snooping version, 2 or 3.

Usage guidelines

You must enable IGMP snooping for a VLAN before you execute this command.

You can specify the version for a VLAN in VLAN view or for the specified VLANs in IGMP-snooping view. For a VLAN, the configuration in VLAN view has the same priority as the configuration in IGMP-snooping view, and the most recent configuration takes effect.

Examples

# In VLAN 2, enable IGMP snooping, and specify IGMP snooping version 3.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] igmp-snooping enable

[Sysname-vlan2] igmp-snooping version 3

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

· version (IGMP-snooping view)

last-member-query-interval (IGMP-snooping view)

Use last-member-query-interval to set the IGMP last member query interval (interval for sending IGMP group-specific queries) globally.

Use undo last-member-query-interval to restore the default.

Syntax

last-member-query-interval interval

undo last-member-query-interval

Default

The IGMP last member query interval is 1 second.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies an IGMP last member query interval in the range of 1 to 25 seconds.

Usage guidelines

You can set the interval for a VLAN in VLAN view or globally for all VLANs in IGMP-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# Set the global IGMP last member query interval to 3 seconds.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] last-member-query-interval 3

Related commands

igmp-snooping last-member-query-interval

max-response-time (IGMP-snooping view)

Use max-response-time to set the maximum response time for IGMP general queries globally.

Use undo max-response-time to restore the default.

Syntax

max-response-time interval

undo max-response-time

Default

The maximum response time for IGMP general queries is 10 seconds.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies the maximum response time for IGMP general queries, in the range of 1 to 3174 seconds.

Usage guidelines

To avoid mistakenly deleting multicast group members, set the maximum response time for IGMP general queries to be less than the IGMP general query interval.

You can set the time for a VLAN in VLAN view or globally for all VLANs in IGMP-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# Set the global maximum response time for IGMP general queries to 5 seconds.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] max-response-time 5

Related commands

· igmp-snooping max-response-time

· igmp-snooping query-interval

overflow-replace (IGMP-snooping view)

Use overflow-replace to enable the multicast group replacement feature globally.

Use undo overflow-replace to disable the multicast group replacement feature globally.

Syntax

overflow-replace [ vlan vlan-list ]

undo overflow-replace [ vlan vlan-list ]

Default

The multicast group replacement feature is disabled globally.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

Usage guidelines

This command takes effect only on the multicast groups that a port joins dynamically.

You can enable the multicast group replacement feature globally for all ports in IGMP-snooping view or for a port in interface view. For a port, the port-specific configuration takes priority over the global configuration.

Examples

# Globally enable the multicast group replacement feature for VLAN 2.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] overflow-replace vlan 2

Related commands

igmp-snooping overflow-replace

report-aggregation (IGMP-snooping view)

Use report-aggregation to enable IGMP report suppression.

Use undo report-aggregation to disable IGMP report suppression.

Syntax

report-aggregation

undo report-aggregation

Default

Report suppression is enabled.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Examples

# Disable IGMP report suppression.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] undo report-aggregation

reset igmp-snooping group

Use reset igmp-snooping group to clear dynamic IGMP snooping forwarding entries.

Syntax

reset igmp-snooping group { group-address [ source-address ] | all } [ vlan vlan-id ]

Views

User view

Predefined user roles

network-admin

mdc-admin

Parameters

group-address: Specifies a multicast group address in the range of 224.0.1.0 to 239.255.255.255.

source-address: Specifies a multicast source address. If you do not specify a multicast source, this command clears dynamic IGMP snooping forwarding entries for all multicast sources.

all: Specifies all multicast groups.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094. If you do not specify a VLAN, this command clears dynamic IGMP snooping forwarding entries for all VLANs.

Examples

# Clear all dynamic IGMP snooping forwarding entries.

<Sysname> reset igmp-snooping group all

Related commands

display igmp-snooping group

reset igmp-snooping router-port

Use reset igmp-snooping router-port to clear dynamic router port information.

Syntax

reset igmp-snooping router-port { all | vlan vlan-id }

Views

User view

Predefined user roles

network-admin

mdc-admin

Parameters

all: Specifies all dynamic router ports.

vlan vlan-id: Specifies a VLAN by its VLAN ID in the range of 1 to 4094. If you do not specify a VLAN, this command clears dynamic router port information for all VLANs.

Examples

# Clear information about all dynamic router ports.

<Sysname> reset igmp-snooping router-port all

Related commands

display igmp-snooping router-port

reset igmp-snooping statistics

Use reset igmp-snooping statistics to clear statistics for IGMP messages learned through IGMP snooping.

Syntax

reset igmp-snooping statistics

Views

User view

Predefined user roles

network-admin

mdc-admin

Examples

# Clear statistics for all IGMP messages learned through IGMP snooping.

<Sysname> reset igmp-snooping statistics

Related commands

display igmp-snooping statistics

router-aging-time (IGMP-snooping view)

Use router-aging-time to set the aging timer for dynamic router ports globally.

Use undo router-aging-time to restore the default.

Syntax

router-aging-time interval

undo router-aging-time

Default

The aging timer for dynamic router ports is 260 seconds.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

interval: Specifies an aging timer for dynamic router ports, in the range of 1 to 8097894 seconds.

Usage guidelines

You can set the timer globally for all VLANs in IGMP-snooping view or for a VLAN in VLAN view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# Set the global aging timer for dynamic router ports to 100 seconds.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] router-aging-time 100

Related commands

igmp-snooping router-aging-time

source-deny (IGMP-snooping view)

Use source-deny to enable multicast source port filtering on ports to discard all multicast data packets.

Use undo source-deny to disable multicast source port filtering on ports.

Syntax

source-deny port interface-list

undo source-deny port interface-list

Default

Multicast source port filtering is disabled.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

port interface-list: Specifies a space-separated list of port items. Each item specifies a port by its port type and number or a range of ports in the form of start-interface-type interface-number to end-interface-type interface-number.

Usage guidelines

You can enable this feature for the specified ports in IGMP-snooping view or for a port in interface view. For a port, the configuration in IGMP-snooping view has the same priority as the configuration in interface view, and the most recent configuration takes effect.

Examples

# Enable multicast source port filtering on ports GigabitEthernet 1/0/1 through GigabitEthernet 1/0/4.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] source-deny port gigabitethernet 1/0/1 to gigabitethernet 1/0/4

Related commands

igmp-snooping source-deny

version (IGMP-snooping view)

Use version to specify an IGMP snooping version for VLANs.

Use undo version to restore the default.

Syntax

version version-number vlan vlan-list

undo version vlan vlan-list

Default

The IGMP snooping version in a VLAN is 2.

Views

IGMP-snooping view

Predefined user roles

network-admin

mdc-admin

Parameters

version-number: Specifies an IGMP snooping version, 2 or 3.

Usage guidelines

You must enable IGMP snooping for the specified VLANs before you execute this command.

You can specify the version for the specified VLANs in IGMP-snooping view or for a VLAN in VLAN view. For a VLAN, the configuration in IGMP-snooping view has the same priority as the configuration in VLAN view, and the most recent configuration takes effect.

Examples

# Enable IGMP snooping for VLAN 2 through VLAN 10, and specify IGMP snooping version 3 for these VLANs.

<Sysname> system-view

[Sysname] igmp-snooping

[Sysname-igmp-snooping] enable vlan 2 to 10

[Sysname-igmp-snooping] version 3 vlan 2 to 10

Related commands

· enable (IGMP-snooping view)

· igmp-snooping enable

· igmp-snooping version

07-IP Multicast Command Reference

IGMP snooping commands

display igmp-snooping

dot1p-priority (IGMP-snooping view)

igmp-snooping last-member-query-interval

igmp-snooping leave source-ip

igmp-snooping overflow-replace

overflow-replace (IGMP-snooping view)

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