08-IP Multicast

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02-MLD snooping commands
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02-MLD snooping commands 180.09 KB

Contents

MLD snooping commands· 1

display ipv6 l2-multicast ip· 1

display ipv6 l2-multicast ip forwarding· 3

display ipv6 l2-multicast mac· 4

display ipv6 l2-multicast mac forwarding· 5

display mld-snooping· 6

display mld-snooping group· 8

display mld-snooping router-port 9

display mld-snooping static-group· 10

display mld-snooping static-router-port 12

display mld-snooping statistics· 12

dot1p-priority (MLD-snooping view) 13

drop-unknown (MLD-snooping view) 14

enable (MLD-snooping view) 15

entry-limit (MLD-snooping view) 15

fast-leave (MLD-snooping view) 16

group-policy (MLD-snooping view) 17

host-aging-time (MLD-snooping view) 18

last-listener-query-interval (MLD-snooping view) 19

max-response-time (MLD-snooping view) 19

mld-snooping· 20

mld-snooping done source-ip· 20

mld-snooping dot1p-priority· 21

mld-snooping drop-unknown· 22

mld-snooping enable· 23

mld-snooping fast-leave· 23

mld-snooping general-query source-ip· 24

mld-snooping group-limit 25

mld-snooping group-policy· 26

mld-snooping host-aging-time· 27

mld-snooping host-join· 28

mld-snooping last-listener-query-interval 29

mld-snooping max-response-time· 30

mld-snooping overflow-replace· 31

mld-snooping querier 31

mld-snooping query-interval 32

mld-snooping report source-ip· 33

mld-snooping router-aging-time· 34

mld-snooping router-port-deny· 34

mld-snooping special-query source-ip· 35

mld-snooping static-group· 36

mld-snooping static-router-port 37

mld-snooping version· 37

overflow-replace (MLD-snooping view) 38

report-aggregation (MLD-snooping view) 39

reset mld-snooping group· 39

reset mld-snooping router-port 40

reset mld-snooping statistics· 40

router-aging-time (MLD-snooping view) 41

version (MLD-snooping view) 41

 


MLD snooping commands

The following matrix shows the feature and hardware compatibility:

 

Hardware series

Model

MLD snooping compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

Yes

WX2500H series

WX2510H

WX2540H

WX2560H

Yes

WX3000H series

WX3010H

WX3010H-L

WX3010H-X

WX3024H

WX3024H-L

Yes:

·     WX3010H

·     WX3010H-X

·     WX3024H

No:

·     WX3010H-L

·     WX3024H-L

WX3500H series

WX3508H

WX3510H

WX3520H

WX3540H

Yes

WX5500E series

WX5510E

WX5540E

Yes

WX5500H series

WX5540H

WX5560H

WX5580H

Yes

Access controller modules

EWPXM1MAC0F

EWPXM1WCME0

EWPXM2WCMD0F

LSQM1WCMX20

LSQM1WCMX40

LSUM1WCME0

LSUM1WCMX20RT

LSUM1WCMX40RT

Yes

 

The WX1800H series, WX2500H series, and WX3000H series access controllers do not support the slot keyword or the slot-number argument.

display ipv6 l2-multicast ip

Use display ipv6 l2-multicast ip to display information about Layer 2 IPv6 multicast groups.

Syntax

display ipv6 l2-multicast ip [ group ipv6-group-address | source ipv6-source-address ] * [ vlan vlan-id ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

group ipv6-group-address: Specifies an IPv6 multicast group by its IPv6 address. If you do not specify an IPv6 multicast group, this command displays information about all Layer 2 IPv6 multicast groups.

source ipv6-source-address: Specifies an IPv6 multicast source by its IPv6 address. If you do not specify an IPv6 multicast source, this command displays information about Layer 2 IPv6 multicast groups for all IPv6 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 IPv6 multicast groups for all VLANs.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays information about Layer 2 IP multicast groups for the master device.

Examples

# Display information about Layer 2 IPv6 multicast groups for VLAN 2.

<Sysname> display ipv6 l2-multicast ip vlan 2

Total 1 entries.

 

VLAN 2: Total 1 IP entries.

   (::, FF1E::101)

    Attribute: static, success

    Host slots (0 in total):

    Host ports (1 in total):

      GE1/0/1                              (S, SUC)

Table 1 Command output

Field

Description

Total 1 entries

Total number of Layer 2 IPv6 multicast groups.

VLAN 2: Total 1 IP entries

Total number of Layer 2 IPv6 multicast groups in VLAN 2.

(::, FF1E::101)

(S, G) entry, where a double colon (::) in the S position means all IPv6 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 IPv6 PIM. The device does not support this attribute in the current software version.

·     kernel—The entry is obtained from the kernel.

·     success—Processing succeeds.

·     fail—Processing fails.

Host slots (0 in total)

Member IDs and total number of the member devices that have member ports, except for the specified member device or the master device when no member device is specified.

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—IPv6 PIM port. The device does not support this attribute in the current software version.

·     K—Port obtained from the kernel.

·     R—Port learned from (*, *) entries.

·     W—Port learned from (*, G) entries.

·     SUC—Processing succeeds.

·     F—Processing fails.

·     BC—Broadcast port. The TRILL port floods IPv6 multicast data after the topology changes. The device does not support this attribute in the current software version.

 

display ipv6 l2-multicast ip forwarding

Use display ipv6 l2-multicast ip forwarding to display Layer 2 IPv6 multicast group entries.

Syntax

display ipv6 l2-multicast ip forwarding [ group ipv6-group-address | source ipv6-source-address ] * [ vlan vlan-id ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

group ipv6-group-address: Specifies an IPv6 multicast group by its IPv6 address. If you do not specify an IPv6 multicast group, this command displays Layer 2 IPv6 multicast group entries for all IPv6 multicast groups.

source ipv6-source-address: Specifies an IPv6 multicast source by its IPv6 address. If you do not specify an IPv6 multicast source, this command displays Layer 2 IPv6 multicast group entries for all IPv6 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 IPv6 multicast group entries for all VLANs.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays Layer 2 IPv6 multicast group entries for the master device.

Examples

# Display Layer 2 IPv6 multicast group entries for VLAN 2.

<Sysname> display ipv6 l2-multicast ip forwarding vlan 2

Total 1 entries.

 

VLAN 2: Total 1 IP entries.

   (::, FF1E::101)

    Host slots (0 in total):

    Host ports (3 in total):

      GigabitEthernet1/0/1

      GigabitEthernet1/0/2

      GigabitEthernet1/0/3

Table 2 Command output

Field

Description

Total 1 entries

Total number of Layer 2 IPv6 multicast group entries.

VLAN 2: Total 1 IP entries

Total number of Layer 2 IPv6 multicast group entries in VLAN 2.

(::, FF1E::101)

(S, G) entry, where a double colon (::) in the S position means all IPv6 multicast sources.

Host slots (0 in total)

Member IDs and total number of the member devices that have member ports, except for the specified member device or the master device when no member device is specified.

Host ports (3 in total)

Member ports, and the total number of member ports.

 

display ipv6 l2-multicast mac

Use display ipv6 l2-multicast mac to display information about Layer 2 IPv6 MAC multicast groups.

Syntax

display ipv6 l2-multicast mac [ mac-address ] [ vlan vlan-id ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

mac-address: Specifies an IPv6 multicast MAC address. If you do not specify an IPv6 multicast MAC address, this command displays information about all Layer 2 IPv6 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 IPv6 MAC multicast groups for all VLANs.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays information about Layer 2 IPv6 MAC multicast groups for the master device.

Examples

# Display information about Layer 2 IPv6 MAC multicast groups for VLAN 2.

<Sysname> display ipv6 l2-multicast mac vlan 2

Total 1 MAC entries.

 

VLAN 2: Total 1 MAC entries.

  MAC group address: 3333-0000-0101

    Attribute: success

    Host slots (0 in total):

    Host ports (1 in total):

      GE1/0/1

Table 3 Command output

Field

Description

Total 1 MAC entries

Total number of Layer 2 IPv6 MAC multicast groups.

VLAN 2: Total 1 MAC entries

Total number of Layer 2 IPv6 MAC multicast groups in VLAN 2.

MAC group address

IPv6 address of the Layer 2 IPv6 MAC multicast group.

Attribute

Entry attribute:

·     success—Processing succeeds.

·     fail—Processing fails.

Host slots (0 in total)

Member IDs and total number of the member devices that have member ports, except for the specified member device or the master device when no member device is specified.

Host ports (1 in total)

Member ports, and the total number of member ports.

 

display ipv6 l2-multicast mac forwarding

Use display ipv6 l2-multicast mac forwarding to display IPv6 Layer 2 MAC forwarding entries.

Syntax

display ipv6 l2-multicast mac forwarding [ mac-address ] [ vlan vlan-id ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

mac-address: Specifies an IPv6 MAC multicast group by its IPv6 MAC address. If you do not specify an IPv6 MAC multicast group, this command displays IPv6 Layer 2 MAC forwarding entries for all IPv6 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 IPv6 Layer 2 MAC forwarding entries for all VLANs.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays IPv6 Layer 2 MAC forwarding entries for the master device.

Examples

# Display IPv6 Layer 2 MAC forwarding entries for VLAN 2.

<Sysname> display ipv6 l2-multicast mac forwarding vlan 2

Total 1 MAC entries.

 

VLAN 2: Total 1 MAC entries.

  MAC group address: 3333-0000-0101

    Host slots (0 in total):

    Host ports (3 in total):

      GigabitEthernet1/0/1

      GigabitEthernet1/0/2

      GigabitEthernet1/0/3

Table 4 Command output

Field

Description

Total 1 MAC entries

Total number of IPv6 Layer 2 MAC forwarding entries.

VLAN 2: Total 1 MAC entries

Total number of IPv6 Layer 2 MAC forwarding entries in VLAN 2.

MAC group address

Address of the IPv6 MAC multicast group.

Host slots (0 in total)

Member IDs and total number of the member devices that have member ports, except for the specified member device or the master device when no member device is specified.

Host ports (3 in total)

Member ports, and the total number of member ports.

 

display mld-snooping

Use display mld-snooping to display MLD snooping status.

Syntax

display mld-snooping [ global | vlan vlan-id ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

global: Displays the global MLD snooping status.

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

Usage guidelines

If you do not specify any parameters, this command displays the global MLD snooping status and the MLD snooping status in all VLANs.

Examples

# Display the global MLD snooping status and the MLD snooping status for all VLANs.

<Sysname> display mld-snooping

MLD snooping information: Global

 MLD snooping: Enabled

 Drop-unknown: Disabled

 Host-aging-time: 260s

 Router-aging-time: 260s

 Max-response-time: 10s

 Last-listener-query-interval: 1s

 Report-aggregation: Enabled

 Dot1p-priority: --

 

MLD snooping information: VLAN 1

 MLD snooping: Enabled

 Drop-unknown: Disabled

 Version: 1

 Host-aging-time: 260s

 Router-aging-time: 260s

 Max-response-time: 10s

 Last-listener-query-interval: 1s

 Querier: Disabled

 Query-interval: 125s

 General-query source IP: FE80::2FF:FFFF:FE00:1

 Special-query source IP: FE80::2FF:FFFF:FE00:1

 Report source IP: FE80::2FF:FFFF:FE00:2

 Done source IP: FE80::2FF:FFFF:FE00:3

 Dot1p-priority: 2

 

MLD snooping information: VLAN 10

 MLD snooping: Enabled

 Drop-unknown: Enabled

 Version: 2

 Host-aging-time: 260s

 Router-aging-time: 260s

 Max-response-time: 10s

 Last-listener-query-interval: 1s

 Querier: Disabled

 Query-interval: 125s

 General-query source IP: FE80::2FF:FFFF:FE00:1

 Special-query source IP: FE80::2FF:FFFF:FE00:1

 Report source IP: FE80::2FF:FFFF:FE00:2

 Done source IP: FE80::2FF:FFFF:FE00:3

 Dot1p-priority: --

Table 5 Command output

Field

Description

MLD snooping

MLD snooping status:

·     Enabled.

·     Disabled.

Drop-unknown

Status of dropping unknown IPv6 multicast data:

·     Enabled.

·     Disabled.

Version

MLD 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 time for responding to MLD general queries.

Last-listener-query-interval

Interval for sending MLD multicast-address-specific queries.

Report-aggregation

Status of MLD report suppression:

·     Enabled.

·     Disabled.

Dot1p-priority

802.1p priority for MLD messages. This field displays two hyphens (--) if the 802.1p priority is not configured.

Querier

Status of MLD snooping querier:

·     Enabled.

·     Disabled.

Query-interval

Interval for sending MLD general queries.

General-query source IP

Source IP address of MLD general queries.

Special-query source IP

Source IP address of MLD multicast-address-specific queries.

Report source IP

Source IP address of MLD reports.

Done source IP

Source IP address of MLD done messages.

 

display mld-snooping group

Use display mld-snooping group to display dynamic MLD snooping group entries.

Syntax

display mld-snooping group [ ipv6-group-address | ipv6-source-address ] * [ vlan vlan-id ] [ verbose ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ipv6-group-address: Specifies an IPv6 multicast group address. The value range for this argument is FFxy::/16 (excluding FFx1::/16 and FFx2::/16), where "x" and "y" represent any hexadecimal numbers in the range of 0 to F. If you do not specify an IPv6 multicast group, this command displays dynamic MLD snooping group entries for all IPv6 multicast groups.

ipv6-source-address: Specifies an IPv6 multicast source by its IPv6 address. If you do not specify an IPv6 multicast source, this command displays dynamic MLD snooping group entries for all IPv6 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 MLD snooping group entries for all VLANs.

verbose: Displays detailed information about dynamic MLD snooping group entries. If you do not specify this keyword, the command displays brief information about dynamic MLD snooping group entries.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays dynamic MLD snooping group entries for the master device.

Examples

# Display dynamic MLD snooping group entries for VLAN 2.

<Sysname> display mld-snooping group vlan 2 verbose

Total 1 entries.

 

VLAN 2: Total 1 entries.

  (::,FF1E::101)

    Attribute: local port

    FSM information: normal

    Host slots (0 in total):

    Host ports (1 in total):

      WLAN-BSS1/0/20                      (00:03:23)

Table 6 Command output

Field

Description

Total 1 entries

Total number of dynamic MLD snooping group entries.

VLAN 2: Total 1 entries

Total number of dynamic MLD snooping group entries in VLAN 2.

(::, FF1E::101)

(S, G) entry, where a double colon (::) in the S position means all IPv6 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:

·     deleteThe entry attributes have been deleted.

·     dummyThe entry is a new temporary entry.

·     no infoThe entry does not exist.

·     normalThe entry is a correct entry.

Host slots (0 in total)

Member IDs and total number of the member devices that have member ports, except for the specified member device or the master device when no member device is specified.

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, this field is always displayed.

For a non-global port, this filed is displayed when one of the following conditions exists:

·     The port is on the specified member device.

·     The port is on the master device and no member device is specified.

 

Related commands

reset mld-snooping group

display mld-snooping router-port

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

Syntax

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

Views

Any view

Predefined user roles

network-admin

network-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 an IRF member device by its member ID. If you do not specify a member device, this command displays dynamic router port information for the master device.

Examples

# Display dynamic router port information for VLAN 2.

<Sysname> display mld-snooping router-port vlan 2

VLAN 2:

  Router slots (0 in total):

  Router ports (2 in total):

    WLAN-BSS1/0/10                        (00:01:30)

    WLAN-BSS1/0/20                        (00:00:23)

Table 7 Command output

Field

Description

VLAN 2

VLAN ID.

Router slots (0 in total)

Member IDs and total number of the member devices that have dynamic router ports, except for the specified member device or the master device when no member device is specified.

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, this field is always displayed.

For a non-global port, this filed is displayed when one of the following conditions exists:

·     The port is on the specified member device.

·     The port is on the master device and no member device is specified.

 

Related commands

reset mld-snooping router-port

display mld-snooping static-group

Use display mld-snooping static-group to display static MLD snooping group entries.

Syntax

display mld-snooping static-group [ ipv6-group-address | ipv6-source-address ] * [ vlan vlan-id ] [ verbose ] [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ipv6-group-address: Specifies an IPv6 multicast group by its IPv6 address. The value range for this argument is FFxy::/16 (excluding FFx1::/16 and FFx2::/16), where "x" and "y" represent any hexadecimal numbers in the range of 0 to F. If you do not specify an IPv6 multicast group, this command displays static MLD snooping group entries for all IPv6 multicast groups.

ipv6-source-address: Specifies an IPv6 multicast source by its IPv6 address. If you do not specify an IPv6 multicast source, this command displays static MLD snooping group entries for all IPv6 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 MLD snooping group entries for all VLANs.

verbose: Displays detailed information about static MLD snooping group entries. If you do not specify the keyword, this command displays brief information about static MLD snooping group entries.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays static MLD snooping group entries for the master device.

Examples

# Display detailed information about static MLD snooping group entries for VLAN 2.

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

Total 1 entries.

 

VLAN 2: Total 1 entries.

  (::,FF1E::101)

    Attribute: local port

    FSM information: normal

    Host slots (0 in total):

    Host ports (1 in total):

      GE1/0/2

Table 8 Command output

Field

Description

Total 1 entries

Total number of static MLD snooping group entries.

VLAN 2: Total 1 entries

Total number of static MLD snooping group entries in VLAN 2.

(::, FF1E::101)

(S, G) entry, where a double colon (::) in the S position means all IPv6 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:

·     deleteThe entry attributes have been deleted.

·     dummyThe entry is a new temporary entry.

·     no infoThe entry does not exist.

·     normalThe entry is a correct entry.

Host slots (0 in total)

Member IDs and total number of the member devices that have member ports, except for the specified member device or the master device when no member device is specified.

Host ports (1 in total)

Member ports, and the total number of member ports.

 

display mld-snooping static-router-port

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

Syntax

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

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

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

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays static router port information for the master device.

Examples

# Display static router port information for VLAN 2.

<Sysname> display mld-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 9 Command output

Field

Description

VLAN 2

VLAN ID.

Router slots (0 in total)

Member IDs and total number of the member devices that have static router ports, except for the specified member device or the master device when no member device is specified.

Router ports (2 in total)

Static router ports, and the total number of static router ports.

 

display mld-snooping statistics

Use display mld-snooping statistics to display statistics for MLD messages learned through MLD snooping.

Syntax

display mld-snooping statistics

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display statistics for MLD messages learned through MLD snooping.

<Sysname> display mld-snooping statistics

Received MLD general queries:  0

Received MLDv1 specific queries:  0

Received MLDv1 reports:  0

Received MLD dones:  0

Sent     MLDv1 specific queries:  0

Received MLDv2 reports:  0

Received MLDv2 reports with right and wrong records:  0

Received MLDv2 specific queries:  0

Received MLDv2 specific sg queries:  0

Sent     MLDv2 specific queries:  0

Sent     MLDv2 specific sg queries:  0

Received IPv6 PIM hello:  0

Received error MLD messages:  0

Table 10 Command output

Field

Description

general queries

Number of MLD general queries.

specific queries

Number of MLD multicast-address-specific queries.

reports

Number of MLD reports.

dones

Number of MLD done messages.

reports with right and wrong records

Number of MLD reports with correct and incorrect records.

specific sg queries

Number of MLD multicast-address-and-source-specific queries.

IPv6 PIM hello

Number of IPv6 PIM hello messages. The device does not support this field in the current software version.

error MLD messages

Number of MLD messages with errors.

 

Related commands

reset mld-snooping statistics

dot1p-priority (MLD-snooping view)

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

Use undo dot1p-priority to restore the default.

Syntax

dot1p-priority priority-number

undo dot1p-priority

Default

The 802.1p priority for MLD messages is not configured.

Views

MLD-snooping view

Predefined user roles

network-admin

Parameters

priority-number: Specifies an 802.1p priority for MLD messages, in the range of 0 to 7. A higher value means a higher priority.

Usage guidelines

You can set the 802.1p priority globally for all VLANs in MLD-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 MLD messages to 3 globally.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] dot1p-priority 3

Related commands

mld-snooping dot1p-priority

drop-unknown (MLD-snooping view)

Use drop-unknown to enable dropping unknown IPv6 multicast data globally.

Use undo drop-unknown to disable dropping unknown IPv6 multicast data globally.

Syntax

drop-unknown

undo drop-unknown

Default

Dropping unknown IPv6 multicast data is disabled, and unknown IPv6 multicast data is flooded.

Views

MLD-snooping view

Predefined user roles

network-admin

Usage guidelines

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

The mld-snooping drop-unknown command in VLAN view and the drop-unknown command in MLD-snooping view are mutually exclusive. You cannot configure them on the same device.

Examples

# Enable the device to drop unknown IPv6 multicast data globally.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] drop-unknown

Related commands

mld-snooping drop-unknown

enable (MLD-snooping view)

Use enable to enable MLD snooping for VLANs.

Use undo enable to disable MLD snooping for VLANs.

Syntax

enable vlan vlan-list

undo enable vlan vlan-list

Default

MLD snooping is disabled in a VLAN.

Views

MLD-snooping view

Predefined user roles

network-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.

Usage guidelines

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

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

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

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

Related commands

·     mld-snooping

·     mld-snooping enable

entry-limit (MLD-snooping view)

Use entry-limit to globally set the maximum number of MLD 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 MLD snooping forwarding entries is 4294967295.

Views

MLD-snooping view

Predefined user roles

network-admin

Parameters

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

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] entry-limit 512

fast-leave (MLD-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

MLD-snooping view

Predefined user roles

network-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 do not specify a VLAN, this command takes effect for all VLANs.

Usage guidelines

The fast-leave processing feature enables the device to immediately remove a port from the forwarding entry for an IPv6 multicast group when the port receives a done message.

You can enable fast-leave processing globally for all ports in MLD-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 MLD snooping fast-leave processing for VLAN 2.

<Sysname> system-view

[Sysname] mld-snooping

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

Related commands

mld-snooping fast-leave

group-policy (MLD-snooping view)

Use group-policy to globally configure an IPv6 multicast group policy to control the IPv6 multicast groups that hosts can join.

Use undo group-policy to delete the configured global IPv6 multicast group policy.

Syntax

group-policy acl6-number [ vlan vlan-list ]

undo group-policy [ vlan vlan-list ]

Default

No IPv6 multicast group policies exist. Hosts can join any IPv6 multicast groups.

Views

MLD-snooping view

Predefined user roles

network-admin

Parameters

acl6-number: Specifies an IPv6 basic or advanced ACL by its number in the range of 2000 to 3999. Hosts can join only IPv6 multicast groups that the ACL permits. If the ACL does not exist or have valid rules, hosts cannot join IPv6 multicast groups.

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 do not specify a VLAN, this command takes effect for all VLANs.

Usage guidelines

When you configure a rule in the IPv6 ACL, follow these restrictions and guidelines:

·     In a basic ACL, the source source-address source-prefix option specifies an IPv6 multicast group address.

·     In an advanced ACL, the source source-address source-prefix option specifies an IPv6 multicast source address. The destination dest-address dest-prefix option specifies an IPv6 multicast group address.

To match the following MLD reports, set the source source-address source-prefix option to 0::0:

?     MLDv1 reports.

?     MLDv2 IS_EX and MLDv2 TO_EX reports that do not carry IPv6 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 in different VLANs. If you configure multiple ACLs on a port in the same VLAN, the most recent configuration takes effect.

This configuration takes effect only on the IPv6 multicast groups that the port joins dynamically.

You can configure an IPv6 multicast group policy globally for all ports in MLD-snooping view or for a port in interface view. For a port, the port-specific configuration takes priority over the global configuration.

Examples

# Configure an IPv6 multicast group policy for VLAN 2 so that hosts in VLAN 2 can join only IPv6 multicast group FF03::101.

<Sysname> system-view

[Sysname] acl ipv6 basic 2000

[Sysname-acl-ipv6-basic-2000] rule permit source ff03::101 128

[Sysname-acl-ipv6-basic-2000] quit

[Sysname] mld-snooping

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

Related commands

mld-snooping group-policy

host-aging-time (MLD-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

MLD-snooping view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

To avoid mistakenly deleting IPv6 multicast group members, set the aging timer for dynamic member ports to be greater than the value calculated by using the following formula:

[ MLD general query interval ] + [ maximum response time for MLD general queries ]

H3C recommends that you set the aging timer of dynamic member ports to the value calculated by using the following formula:

[ MLD general query interval ] × 2 + [ maximum response time for MLD general queries ]

You can set the timer globally for all VLANs in MLD-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] mld-snooping

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

Related commands

mld-snooping host-aging-time

last-listener-query-interval (MLD-snooping view)

Use last-listener-query-interval to set the MLD last listener query interval (interval for sending MLD multicast-address-specific queries) globally.

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

Syntax

last-listener-query-interval interval

undo last-listener-query-interval

Default

The MLD last listener query interval is 1 second.

Views

MLD-snooping view

Predefined user roles

network-admin

Parameters

interval: Specifies an MLD last listener 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 MLD-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

# Set the global MLD last listener query interval to 3 seconds.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] last-listener-query-interval 3

Related commands

mld-snooping last-listener-query-interval

max-response-time (MLD-snooping view)

Use max-response-time to set the maximum response time for MLD 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 MLD general queries is 10 seconds.

Views

MLD-snooping view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

To avoid mistakenly deleting IPv6 multicast group members, set the maximum response time for MLD general queries to be less than the MLD general query interval.

You can set the time globally for all VLANs in MLD-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 maximum response time for MLD general queries to 5 seconds.

<Sysname> system-view

[Sysname] mld-snooping

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

Related commands

·     mld-snooping max-response-time

·     mld-snooping query-interval

mld-snooping

Use mld-snooping to enable MLD snooping globally and enter MLD-snooping view.

Use undo mld-snooping to disable MLD snooping globally.

Syntax

mld-snooping

undo mld-snooping

Default

MLD snooping is globally disabled.

Views

System view

Predefined user roles

network-admin

Examples

# Globally enable MLD snooping, and enter MLD-snooping view.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping]

Related commands

·     enable (MLD-snooping view)

·     mld-snooping enable

mld-snooping done source-ip

Use mld-snooping done source-ip to configure the source IPv6 address for MLD done messages.

Use undo mld-snooping done source-ip to restore the default.

Syntax

mld-snooping done source-ip ipv6-address

undo mld-snooping done source-ip

Default

The source IPv6 address of the MLD done messages is the IPv6 link-local address of the current VLAN interface. If the current VLAN interface does not have an IPv6 link-local address, the source IPv6 address is FE80::02FF:FFFF:FE00:0001.

Views

VLAN view

Predefined user roles

network-admin

Parameters

ipv6-address: Specifies a source IPv6 address for MLD done messages.

Usage guidelines

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

Examples

# In VLAN 2, enable MLD snooping, and specify FE80:0:0:1::1 as the source IPv6 address of MLD done messages.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

[Sysname-vlan2] mld-snooping done source-ip fe80:0:0:1::1

Related commands

·     enable (MLD-snooping view)

·     mld-snooping enable

mld-snooping dot1p-priority

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

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

Syntax

mld-snooping dot1p-priority priority-number

undo mld-snooping dot1p-priority

Default

The 802.1p priority for MLD messages is not configured.

Views

VLAN view

Predefined user roles

network-admin

Parameters

priority-number: Specifies an 802.1p priority for MLD messages, in the range of 0 to 7. A higher value means a higher priority.

Usage guidelines

You must enable MLD 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 MLD-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

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

Related commands

·     dot1p-priority (MLD-snooping view)

·     enable (MLD-snooping view)

·     mld-snooping enable

mld-snooping drop-unknown

Use mld-snooping drop-unknown to enable dropping unknown IPv6 multicast data for a VLAN.

Use undo mld-snooping drop-unknown to disable dropping unknown IPv6 multicast data for a VLAN.

Syntax

mld-snooping drop-unknown

undo mld-snooping drop-unknown

Default

Dropping unknown IPv6 multicast data in a VLAN is disabled, and unknown IPv6 multicast data is flooded in the VLAN.

Views

VLAN view

Predefined user roles

network-admin

Usage guidelines

You must enable MLD 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 MLD-snooping view.

The mld-snooping drop-unknown command in VLAN view and the drop-unknown command in MLD-snooping view are mutually exclusive. You cannot configure them on the same device.

Examples

# In VLAN 2, enable MLD snooping, and enable dropping unknown IPv6 multicast data.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

[Sysname-vlan2] mld-snooping drop-unknown

Related commands

·     drop-unknown (MLD-snooping view)

·     enable (MLD-snooping view)

·     mld-snooping enable

mld-snooping enable

Use mld-snooping enable to enable MLD snooping for a VLAN.

Use undo mld-snooping enable to disable MLD snooping for a VLAN.

Syntax

mld-snooping enable

undo mld-snooping enable

Default

MLD snooping is disabled in a VLAN.

Views

VLAN view

Predefined user roles

network-admin

Usage guidelines

You must enable MLD snooping globally before you enable MLD snooping for a VLAN.

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

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

Related commands

·     enable (MLD-snooping view)

·     mld-snooping

mld-snooping fast-leave

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

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

Syntax

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

undo mld-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

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 do not specify a VLAN, this command takes effect on all VLANs.

Usage guidelines

The fast-leave processing feature enables the device to immediately remove a port from the forwarding entry for an IPv6 multicast group when the port receives a done message.

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

Examples

# Enable fast-leave processing for VLAN 2 on GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

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

Related commands

fast-leave (MLD-snooping view)

mld-snooping general-query source-ip

Use mld-snooping general-query source-ip to configure the source IPv6 address for MLD general queries.

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

Syntax

mld-snooping general-query source-ip ipv6-address

undo mld-snooping general-query source-ip

Default

In a VLAN, the source IPv6 address for MLD general queries is the IPv6 link-local address of the current VLAN interface. If the current VLAN interface does not have an IPv6 link-local address, the source IPv6 address is FE80::02FF:FFFF:FE00:0001.

Views

VLAN view

Predefined user roles

network-admin

Parameters

ipv6-address: Specifies a source IPv6 address for MLD general queries.

Usage guidelines

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

Examples

# In VLAN 2, enable MLD snooping, and specify FE80:0:0:1::1 as the source IPv6 address for MLD general queries.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

[Sysname-vlan2] mld-snooping general-query source-ip fe80:0:0:1::1

Related commands

·     enable (MLD-snooping view)

·     mld-snooping enable

mld-snooping group-limit

Use mld-snooping group-limit to set the maximum number of IPv6 multicast groups that a port can join.

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

Syntax

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

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

Default

The default setting is 4294967295.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

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

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 do not specify a VLAN, this command takes effect for all VLANs.

Usage guidelines

This command takes effect only on the IPv6 multicast groups that a port joins dynamically.

Examples

# On GigabitEthernet 1/0/1, set the maximum number of IPv6 multicast groups that the port can join in VLAN 2 to 10.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

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

mld-snooping group-policy

Use mld-snooping group-policy to configure an IPv6 multicast group policy on a port to control the IPv6 multicast groups that hosts attached to the port can join.

Use undo mld-snooping group-policy to delete the IPv6 multicast group policy on a port.

Syntax

mld-snooping group-policy acl6-number [ vlan vlan-list ]

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

Default

No IPv6 multicast group policies exists on a port. Hosts attached to the port can join any IPv6 multicast groups.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

acl6-number: Specifies an IPv6 basic or advanced ACL number in the range of 2000 to 3999. Hosts can join only the IPv6 multicast groups that the ACL permits. If the ACL does not exist or have valid rules, hosts cannot join IPv6 multicast groups.

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 do not specify a VLAN, this command takes effect on all VLANs.

Usage guidelines

When you configure a rule in the IPv6 ACL, follow these restrictions and guidelines:

·     In a basic ACL, the source source-address source-prefix option specifies an IPv6 multicast group address.

·     In an advanced ACL, the source source-address source-prefix option specifies an IPv6 multicast source address. The destination dest-address dest-prefix option specifies an IPv6 multicast group address.

To match the following MLD reports, set the source source-address source-prefix option to 0::0:

?     MLDv1 reports.

?     MLDv2 IS_EX and MLDv2 TO_EX reports that do not carry IPv6 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 in different VLANs. If you configure multiple ACLs on a port in the same VLAN, the most recent configuration takes effect.

This command takes effect only on the IPv6 multicast groups that a port joins dynamically.

You can configure an IPv6 multicast group policy for a port in interface view or globally for all ports in MLD-snooping view. For a port, the port-specific configuration takes priority over the global configuration.

Examples

# On GigabitEthernet 1/0/1, configure an IPv6 multicast group policy for VLAN 2 so that hosts attached to the port in VLAN 2 can join only group FF03::101.

<Sysname> system-view

[Sysname] acl ipv6 basic 2000

[Sysname-acl-ipv6-basic-2000] rule permit source ff03::101 128

[Sysname-acl-ipv6-basic-2000] quit

[Sysname] interface gigabitethernet 1/0/1

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

Related commands

group-policy (MLD-snooping view)

mld-snooping host-aging-time

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

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

Syntax

mld-snooping host-aging-time interval

undo mld-snooping host-aging-time

Default

The aging timer for dynamic member ports is 260 seconds.

Views

VLAN view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

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

To avoid mistakenly deleting IPv6 multicast group members, set the aging timer for dynamic member ports to be greater than the value calculated by using the following formula:

[ MLD general query interval ] + [ maximum response time for MLD general queries ]

H3C recommends that you set the aging timer of dynamic member ports to the value calculated by using the following formula:

[ MLD general query interval ] × 2 + [ maximum response time for MLD general queries ]

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

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

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

Related commands

·     enable (MLD-snooping view)

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

·     mld-snooping enable

mld-snooping host-join

Use mld-snooping host-join to configure a port as a simulated member host for an IPv6 multicast group.

Use undo mld-snooping host-join to restore the default.

Syntax

mld-snooping host-join ipv6-group-address [ source-ip ipv6-source-address ] vlan vlan-id

undo mld-snooping host-join { ipv6-group-address [ source-ip ipv6-source-address ] vlan vlan-id | all }

Default

A port is not a simulated member host of IPv6 multicast groups.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

ipv6-group-address: Specifies an IPv6 multicast group address. The value range for this argument is FFxy::/16 (excluding FFx1::/16 and FFx2::/16), where "x" and "y" represent any hexadecimal numbers in the range of 0 to F.

source-ip ipv6-source-address: Specifies an IPv6 multicast source by its IPv6 address. If you specify an IPv6 multicast source, this command configures the port as a simulated member host for an IPv6 multicast source and group. If you do not specify an IPv6 multicast source, this command configures the port as a simulated member host for an IPv6 multicast group. This option takes effect on MLDv2 snooping devices.

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

all: Specifies all IPv6 multicast groups.

Usage guidelines

The version of MLD running on a simulated member host is the same as the version of MLD 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 for the IPv6 multicast source and group (2002::22, FF3E::101) in VLAN 2.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

[Sysname-vlan2] mld-snooping version 2

[Sysname-vlan2] quit

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] mld-snooping host-join ff3e::101 source-ip 2002::22 vlan 2

mld-snooping last-listener-query-interval

Use mld-snooping last-listener-query-interval to set the MLD last listener query interval (interval for sending MLD multicast-address-specific queries) for a VLAN.

Use undo mld-snooping last-listener-query-interval to restore the default.

Syntax

mld-snooping last-listener-query-interval interval

undo mld-snooping last-listener-query-interval

Default

The default setting is 1 second.

Views

VLAN view

Predefined user roles

network-admin

Parameters

interval: Specifies an MLD last listener query interval in the range of 1 to 25 seconds.

Usage guidelines

You must enable MLD 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 MLD-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

[Sysname-vlan2] mld-snooping last-listener-query-interval 3

Related commands

·     enable (MLD-snooping view)

·     last-listener-query-interval (MLD-snooping view)

·     mld-snooping enable

mld-snooping max-response-time

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

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

Syntax

mld-snooping max-response-time interval

undo mld-snooping max-response-time

Default

The default setting is 10 seconds.

Views

VLAN view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

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

To avoid mistakenly deleting IPv6 multicast group members, set the maximum response time for MLD general queries to be less than the MLD general query interval.

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

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

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

Related commands

·     enable (MLD-snooping view)

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

·     mld-snooping enable

·     mld-snooping query-interval

mld-snooping overflow-replace

Use mld-snooping overflow-replace to enable the IPv6 multicast group replacement feature on a port.

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

Syntax

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

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

Default

The IPv6 multicast group replacement feature is disabled.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-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 do not specify a VLAN, this command takes effect on all VLANs.

Usage guidelines

This command takes effect only on the IPv6 multicast groups that a port joins dynamically.

You can enable the IPv6 multicast group replacement feature for a port in interface view or globally for all ports in MLD-snooping view. For a port, the port-specific configuration takes priority over the global configuration.

Examples

# On GigabitEthernet 1/0/1, enable the IPv6 multicast group replacement feature for VLAN 2.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

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

Related commands

overflow-replace (MLD-snooping view)

mld-snooping querier

Use mld-snooping querier to enable the MLD snooping querier for a VLAN.

Use undo mld-snooping querier to disable the MLD snooping querier.

Syntax

mld-snooping querier

undo mld-snooping querier

Default

The MLD snooping querier for a VLAN is disabled.

Views

VLAN view

Predefined user roles

network-admin

Usage guidelines

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

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

[Sysname-vlan2] mld-snooping querier

Related commands

·     enable (MLD-snooping view)

·     mld-snooping enable

mld-snooping query-interval

Use mld-snooping query-interval to set the MLD general query interval in a VLAN.

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

Syntax

mld-snooping query-interval interval

undo mld-snooping query-interval

Default

The MLD general query interval is 125 seconds.

Views

VLAN view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

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

To avoid mistakenly deleting IPv6 multicast group members, set the MLD general query interval to be greater than the maximum response time for MLD general queries.

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

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

Related commands

·     enable (MLD-snooping view)

·     max-response-time

·     mld-snooping enable

·     mld-snooping max-response-time

·     mld-snooping querier

mld-snooping report source-ip

Use mld-snooping report source-ip to configure the source IPv6 address for MLD reports.

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

Syntax

mld-snooping report source-ip ipv6-address

undo mld-snooping report source-ip

Default

The source IPv6 address for MLD reports is the IPv6 link-local address of current VLAN interface. If the current VLAN interface does not have an IPv6 link-local address, the source IPv6 address is FE80::02FF:FFFF:FE00:0001.

Views

VLAN view

Predefined user roles

network-admin

Parameters

ipv6-address: Specifies a source IPv6 address for MLD reports.

Usage guidelines

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

Examples

# In VLAN 2, enable MLD snooping, and specify FE80:0:0:1::1 as the source IPv6 address for MLD reports.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

[Sysname-vlan2] mld-snooping report source-ip fe80:0:0:1::1

Related commands

·     enable (MLD-snooping view)

·     mld-snooping enable

mld-snooping router-aging-time

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

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

Syntax

mld-snooping router-aging-time interval

undo mld-snooping router-aging-time

Default

The source IPv6 address for MLD reports in a VLAN is 260 seconds.

Views

VLAN view

Predefined user roles

network-admin

Parameters

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

Usage guidelines

You must enable MLD 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 MLD-snooping view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

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

Related commands

·     enable (MLD-snooping view)

·     mld-snooping enable

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

mld-snooping router-port-deny

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

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

Syntax

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

undo mld-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

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.

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] mld-snooping router-port-deny vlan 2

mld-snooping special-query source-ip

Use mld-snooping special-query source-ip to configure the source IPv6 address for MLD multicast-address-specific queries.

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

Syntax

mld-snooping special-query source-ip ipv6-address

undo mld-snooping special-query source-ip

Default

The source IPv6 address of MLD multicast-address-specific queries is one of the following:

·     The source address of MLD general queries if the MLD snooping querier of the VLAN has received MLD general queries.

·     The IPv6 link-local address of the current VLAN interface if the MLD snooping querier does not receive an MLD general query.

·     FE80::02FF:FFFF:FE00:0001 if the MLD snooping querier does not receive an MLD general query and the current VLAN interface does not have an IPv6 link-local address.

Views

VLAN view

Predefined user roles

network-admin

Parameters

ipv6-address: Specifies a source IPv6 address for MLD multicast-address-specific queries.

Usage guidelines

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

Examples

# In VLAN 2, enable MLD snooping, and specify FE80:0:0:1::1 as the source IPv6 address of MLD multicast-address-specific queries.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

[Sysname-vlan2] mld-snooping special-query source-ip fe80:0:0:1::1

Related commands

·     enable (MLD-snooping view)

·     mld-snooping enable

mld-snooping static-group

Use mld-snooping static-group to configure a port as a static member port of an IPv6 multicast group.

Use undo mld-snooping static-group to delete a static member port.

Syntax

mld-snooping static-group ipv6-group-address [ source-ip ipv6-source-address ] vlan vlan-id

undo mld-snooping static-group { ipv6-group-address [ source-ip ipv6-source-address ] vlan vlan-id | all }

Default

A port is not a static member port of IPv6 multicast groups.

Views

Layer 2 Ethernet interface view

Layer 2 aggregate interface view

Predefined user roles

network-admin

Parameters

ipv6-group-address: Specifies an IPv6 multicast group address. The value range for this argument is FFxy::/16 (excluding FFx1::/16 and FFx2::/16), where "x" and "y" represent any hexadecimal numbers in the range of 0 to F.

source-ip ipv6-source-address: Specifies an IPv6 multicast source by its IPv6 address. If you specify an IPv6 multicast source, this command configures the port as a static member port of an IPv6 multicast source and group. If you do not specify an IPv6 multicast source, this command configures the port as a static member port of an IPv6 multicast group. This option takes effect on MLDv2 snooping devices.

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

all: Specifies all IPv6 multicast groups.

Examples

# Configure GigabitEthernet 1/0/1 as a static member port for the IPv6 multicast source and group (2002::22, FF3E::101) in VLAN 2.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

[Sysname-vlan2] mld-snooping version 2

[Sysname-vlan2] quit

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] mld-snooping static-group ff3e::101 source-ip 2002::22 vlan 2

mld-snooping static-router-port

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

Use undo mld-snooping static-router-port to delete a static router port.

Syntax

mld-snooping static-router-port vlan vlan-id

undo mld-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

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] mld-snooping static-router-port vlan 2

mld-snooping version

Use mld-snooping version to specify an MLD snooping version for a VLAN.

Use undo mld-snooping version to restore the default.

Syntax

mld-snooping version version-number

undo mld-snooping version

Default

The MLD snooping version in a VLAN is 1.

Views

VLAN view

Predefined user roles

network-admin

Parameters

version-number: Specifies an MLD snooping version, 1 or 2.

Usage guidelines

You must enable MLD snooping for a VLAN before you configure this command.

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

Examples

# In VLAN 2, enable MLD snooping, and specify MLD snooping version 2.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] quit

[Sysname] vlan 2

[Sysname-vlan2] mld-snooping enable

[Sysname-vlan2] mld-snooping version 2

Related commands

·     enable (MLD-snooping view)

·     mld-snooping enable

·     version (MLD-snooping view)

overflow-replace (MLD-snooping view)

Use overflow-replace to enable the IPv6 multicast group replacement feature globally.

Use undo overflow-replace to disable the IPv6 multicast group replacement feature globally.

Syntax

overflow-replace [ vlan vlan-list ]

undo overflow-replace [ vlan vlan-list ]

Default

The IPv6 multicast group replacement feature is disabled globally.

Views

MLD-snooping view

Predefined user roles

network-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 do not specify a VLAN, this command takes effect on all VLANs.

Usage guidelines

This command takes effect only on the IPv6 multicast groups that a port joins dynamically.

You can enable IPv6 multicast group replacement globally for all ports in MLD-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 IPv6 multicast group replacement feature for VLAN 2.

<Sysname> system-view

[Sysname] mld-snooping

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

Related commands

mld-snooping overflow-replace

report-aggregation (MLD-snooping view)

Use report-aggregation to enable MLD report suppression.

Use undo report-aggregation to disable MLD report suppression.

Syntax

report-aggregation

undo report-aggregation

Default

MLD report suppression is enabled.

Views

MLD-snooping view

Predefined user roles

network-admin

Examples

# Disable MLD report suppression.

<Sysname> system-view

[Sysname] mld-snooping

[Sysname-mld-snooping] undo report-aggregation

reset mld-snooping group

Use reset mld-snooping group to clear dynamic MLD snooping group entries.

Syntax

reset mld-snooping group { ipv6-group-address [ ipv6-source-address ] | all } [ vlan vlan-id ]

Views

User view

Predefined user roles

network-admin

Parameters

ipv6-group-address: Specifies an IPv6 multicast group address. The value range for this argument is FFxy::/16 (excluding FFx1::/16 and FFx2::/16), where "x" and "y" represent any hexadecimal numbers in the range of 0 to F.

ipv6-source-address: Specifies an IPv6 multicast source address. If you do not specify an IPv6 multicast source, this command clears dynamic MLD snooping group entries for all IPv6 multicast sources.

all: Specifies all IPv6 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 MLD snooping group entries for all VLANs.

Examples

# Clear all dynamic MLD snooping group entries.

<Sysname> reset mld-snooping group all

Related commands

display mld-snooping group

reset mld-snooping router-port

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

Syntax

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

Views

User view

Predefined user roles

network-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 mld-snooping router-port all

Related commands

display mld-snooping router-port

reset mld-snooping statistics

Use reset mld-snooping statistics to clear statistics for MLD messages learned through MLD snooping.

Syntax

reset mld-snooping statistics

Views

User view

Predefined user roles

network-admin

Examples

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

<Sysname> reset mld-snooping statistics

Related commands

display mld-snooping statistics

router-aging-time (MLD-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

MLD-snooping view

Predefined user roles

network-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 MLD-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] mld-snooping

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

Related commands

mld-snooping router-aging-time

version (MLD-snooping view)

Use version to specify an MLD 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 MLD snooping version in a VLAN is 1.

Views

MLD-snooping view

Predefined user roles

network-admin

Parameters

version-number: Specifies an MLD snooping version, 1 or 2.

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.

Usage guidelines

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

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

Examples

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

<Sysname> system-view

[Sysname] mld-snooping

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

[Sysname-mld-snooping] version 2 vlan 2 to 10

Related commands

·     enable (MLD-snooping view)

·     mld-snooping enable

·     mld-snooping version