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- Table of Contents
-
- 08-IP Multicast Command Reference
- 00-Preface
- 01-IGMP snooping commands
- 02-PIM snooping commands
- 03-Multicast VLAN commands
- 04-Multicast routing and forwarding commands
- 05-IGMP commands
- 06-PIM commands
- 07-MSDP commands
- 08-Multicast VPN commands
- 09-MLD snooping commands
- 10-IPv6 PIM snooping commands
- 11-IPv6 multicast VLAN commands
- 12-IPv6 multicast routing and forwarding commands
- 13-MLD commands
- 14-IPv6 PIM commands
- Related Documents
-
| Title | Size | Download |
|---|---|---|
| 09-MLD snooping commands | 268.31 KB |
Contents
display ipv6 l2-multicast ip forwarding
display ipv6 l2-multicast mac forwarding
display mld-snooping host-tracking
display mld-snooping router-port
display mld-snooping static-group
display mld-snooping static-router-port
display mld-snooping statistics
entry-limit (MLD-snooping view)
fast-leave (MLD-snooping view)
group-policy (MLD-snooping view)
host-aging-time (MLD-snooping view)
host-tracking (MLD-snooping view)
last-listener-query-interval (MLD-snooping view)
max-response-time (MLD-snooping view)
mld-snooping general-query source-ip
mld-snooping last-listener-query-interval
mld-snooping max-response-time
mld-snooping router-aging-time
mld-snooping special-query source-ip
mld-snooping static-router-port
overflow-replace (MLD-snooping view)
report-aggregation (MLD-snooping view)
reset mld-snooping router-port
router-aging-time (MLD-snooping view)
snmp-agent trap enable mld-snooping
MLD snooping commands
display ipv6 l2-multicast ip
Use display ipv6 l2-multicast ip to display information about Layer 2 IPv6 multicast groups.
Syntax
In standalone mode:
display ipv6 l2-multicast ip [ group ipv6-group-address | source ipv6-source-address ] * [ vlan vlan-id ] [ slot slot-number [ cpu cpu-number ] ]
In IRF mode:
display ipv6 l2-multicast ip [ group ipv6-group-address | source ipv6-source-address ] * [ vlan vlan-id ] [ chassis chassis-number slot slot-number [ cpu cpu-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 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. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays information about Layer 2 IP multicast groups for the global active MPU. (In IRF mode.)
cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.
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 ports (1 in total):
XGE3/1/1 (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. · kernel—The entry is obtained from the kernel. · success—Processing has succeeded. · fail—Processing has failed. |
|
Host slots (0 in total) |
(In standalone mode.) Slot numbers and total number of the cards that have member ports, except for the specified card or the MPU when no card is specified. (In IRF mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except for the specified card or the global active MPU when no card is specified. |
|
Host ports (1 in total) |
Member ports and total number of member ports. |
|
(S, SUC) |
Port attribute: · D—Dynamic port. · S—Static port. · P—IPv6 PIM port. · K—Port obtained from the kernel. · R—Port learned from (*, *) entries. · W—Port learned from (*, G) entries. · SUC—Processing has succeeded. · F—Processing has failed. · BC—In a VLAN, the port is a TRILL port that floods IPv6 multicast data after the topology changes. |
|
NPW (VXLAN ID 0 Link ID 0x5000001) |
N-PW interface, and its VXLAN ID and link ID. |
display ipv6 l2-multicast ip forwarding
Use display ipv6 l2-multicast ip forwarding to display Layer 2 IPv6 multicast IP forwarding entries.
Syntax
In standalone mode:
display ipv6 l2-multicast ip forwarding [ group ipv6-group-address | source ipv6-source-address ] * [ vlan vlan-id ] [ slot slot-number [ cpu cpu-number ] ]
In IRF mode:
display ipv6 l2-multicast ip forwarding [ group ipv6-group-address | source ipv6-source-address ] * [ vlan vlan-id ] [ chassis chassis-number slot slot-number [ cpu cpu-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 IP forwarding 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 IP forwarding 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 IP 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 the Layer 2 IPv6 multicast IP forwarding entries for the MPU. (In standalone mode.)
chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays Layer 2 IPv6 multicast IP forwarding entries for the global active MPU. (In IRF mode.)
cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.
Examples
# Display Layer 2 IPv6 multicast IP forwarding entries for VLAN 2.
<Sysname> display ipv6 l2-multicast ip forwarding vlan 2
Total 1 entries.
VLAN 2: Total 1 entries.
(::, FF1E::101)
Host slots (0 in total):
Host ports (3 in total):
Ten-GigabitEthernet3/1/1
Ten-GigabitEthernet3/1/2
Ten-GigabitEthernet3/1/3
Table 2 Command output
|
Field |
Description |
|
Total 1 entries |
Total number of Layer 2 IPv6 multicast IP forwarding entries. |
|
VLAN 2: Total 1 entries |
Total number of Layer 2 IPv6 multicast IP forwarding 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) |
(In standalone mode.) Slot numbers and total number of the cards that have member ports, except for the specified card or the MPU when no card is specified. (In IRF mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except for the specified card or the global active MPU when no card is specified. |
|
Host ports (3 in total) |
Member ports and total number of member ports. |
display ipv6 l2-multicast mac
Use display ipv6 l2-multicast mac to display information about Layer 2 IPv6 multicast MAC multicast groups.
Syntax
In standalone mode:
display ipv6 l2-multicast mac [ mac-address ] [ vlan vlan-id ] [ slot slot-number [ cpu cpu-number ] ]
In IRF mode:
display ipv6 l2-multicast mac [ mac-address ] [ vlan vlan-id ] [ chassis chassis-number slot slot-number [ cpu cpu-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 multicast 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 multicast 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 the Layer 2 IPv6 multicast MAC multicast groups for the MPU. (In standalone mode.)
chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays information about Layer 2 IPv6 multicast MAC multicast groups for the global active MPU. (In IRF mode.)
cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.
Examples
# Display information about Layer 2 IPv6 multicast 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):
XGE3/1/1
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 has succeeded. · fail—Processing has failed. |
|
Host slots (0 in total) |
(In standalone mode.) Slot numbers and total number of the cards that have member ports, except for the specified card or the MPU when no card is specified. (In IRF mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except for the specified card or the global active MPU when no card is specified. |
|
Host ports (1 in total) |
Member ports and total number of member ports. |
|
NPW (VXLAN ID 0 Link ID 0x5000001) |
N-PW interface, and its VXLAN ID and link ID. |
display ipv6 l2-multicast mac forwarding
Use display ipv6 l2-multicast mac forwarding to display Layer 2 IPv6 multicast MAC forwarding entries.
Syntax
In standalone mode:
display ipv6 l2-multicast mac forwarding [ mac-address ] [ vlan vlan-id ] [ slot slot-number [ cpu cpu-number ] ]
In IRF mode:
display ipv6 l2-multicast mac forwarding [ mac-address ] [ vlan vlan-id ] [ chassis chassis-number slot slot-number [ cpu cpu-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 Layer 2 IPv6 multicast 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 Layer 2 IPv6 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 IPv6 multicast MAC forwarding entries for the MPU. (In standalone mode.)
chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays Layer 2 IPv6 multicast MAC forwarding entries for the global active MPU. (In IRF mode.)
cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.
Examples
# Display Layer 2 IPv6 multicast 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):
Ten-GigabitEthernet3/1/1
Ten-GigabitEthernet3/1/2
Ten-GigabitEthernet3/1/3
Table 4 Command output
|
Field |
Description |
|
Total 1 MAC entries |
Total number of Layer 2 IPv6 multicast MAC forwarding entries. |
|
VLAN 2: Total 1 MAC entries |
Total number of Layer 2 IPv6 multicast MAC forwarding entries in VLAN 2. |
|
MAC group address |
Address of the IPv6 MAC multicast group. |
|
Host slots (0 in total) |
(In standalone mode.) Slot numbers and total number of the cards that have member ports, except for the specified card or the MPU when no card is specified. (In IRF mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except for the specified card or the global active MPU when no card is specified. |
|
Host ports (3 in total) |
Member ports, and the total number of member ports. |
|
NPW (VXLAN ID 0 Link ID 0x5000001) |
N-PW interface, and its VXLAN ID and link ID. |
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 VLANss.
<Sysname> display mld-snooping
MLD snooping information: Global
MLD snooping: Enabled
Host-aging-time: 260s
Router-aging-time: 260s
Max-response-time: 10s
Last-listener-query-interval: 1s
Report-aggregation: Enabled
Host-tracking: Disabled
Dot1p-priority: --
MLD snooping information: VLAN 1
MLD snooping: Enabled
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
Host-tracking: Disabled
Dot1p-priority: --
Proxy: Disabled
MLD snooping information: VLAN 10
MLD snooping: 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
Host-tracking: Disabled
Dot1p-priority: --
Proxy: Disabled
Table 5 Command output
|
Field |
Description |
|
MLD snooping |
MLD snooping status: · 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 IPv6 address of MLD general queries. |
|
Special-query source IP |
Source IPv6 address of MLD multicast-address-specific queries. |
|
Report source IP |
Source IPv6 address of MLD reports. |
|
Done source IP |
Source IPv6 address of MLD done messages. |
|
Host-tracking |
Status of host tracking: · Enabled. · Disabled. |
|
Proxy |
Status of MLD snooping proxying: · Enabled. · Disabled. |
display mld-snooping group
Use display mld-snooping group to display dynamic MLD snooping group entries.
Syntax
In standalone mode:
display mld-snooping group [ ipv6-group-address | ipv6-source-address ] * [ vlan vlan-id ] [ verbose ] [ slot slot-number [ cpu cpu-number ] ]
In IRF mode:
display mld-snooping group [ ipv6-group-address | ipv6-source-address ] * [ vlan vlan-id ] [ verbose ] [ chassis chassis-number slot slot-number [ cpu cpu-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 a card by its slot number. If you do not specify a card, this command displays dynamic MLD snooping group entries for the MPU. (In standalone mode.)
chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays dynamic MLD snooping group entries for the global active MPU. (In IRF mode.)
cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.
Examples
# Display detailed information about 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):
XGE3/1/2 (00:03:23)
Table 6 Command output
|
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 card for which the information is displayed. · slot—The entry has ports that reside on other cards, but not on the card for which the information is displayed. |
|
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—The entry does not exist. · normal—The entry is a correct entry. |
|
Host slots (0 in total) |
(In standalone mode.) Slot numbers and total number of the cards that have member ports, except for the specified card or the MPU when no card is specified. (In IRF mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except for the specified card or the global active MPU when no card is specified. |
|
Host ports (1 in total) |
Member ports and total number of member ports. |
|
(00:03:23) |
Remaining aging time for the dynamic member port. This field is always displayed for a global port (including Layer 2 aggregate interfaces, AC interfaces, N-PW interfaces, and U-PW interfaces). (In standalone mode.) For a non-global port, 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.) For a non-global port, 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. |
|
NPW (VXLAN ID 0 Link ID 0x5000001) |
N-PW interface, and its VXLAN ID and link ID. |
|
VLAN pairs (1 in total) |
VLAN pairs and total number of VLAN pairs. |
|
Out VLAN 5 In VLAN 2 |
The outer VLAN ID is 5, and the inner VLAN ID is 2. |
Related commands
reset mld-snooping group
display mld-snooping host-tracking
Use display mld-snooping host-tracking to display host tracking information.
Syntax
In standalone mode:
display mld-snooping host-tracking vlan vlan-id group ipv6-group-address [ source ipv6-source-address ] [ slot slot-number [ cpu cpu-number ] ]
In IRF mode:
display mld-snooping host-tracking vlan vlan-id group ipv6-group-address [ source ipv6-source-address ] [ chassis chassis-number slot slot-number [ cpu cpu-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.
group ipv6-group-address: Specifies an IPv6 multicast group by its IPv6 address. The value range for the ipv6-group-address 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 ipv6-source-address: Specifies an IPv6 multicast source by its IPv6 address. If you do not specify an IPv6 multicast source, this commands displays host tracking information for all IPv6 multicast sources.
slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays host tracking information for the MPU. (In standalone mode.)
chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays host tracking information for the global active MPU. (In IRF mode.)
cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.
Examples
# Display tracking information for hosts that have joined IPv6 multicast group FF1E::2 in VLAN 2.
<Sysname> display mld-snooping host-tracking vlan 2 group FF1E::2
VLAN 2
(1::6, FF1E::2)
Port: XGE3/1/1
Host Uptime Expires
1::2 00:02:20 00:00:40
1::3 00:02:21 00:00:39
Table 7 Command output
|
Field |
Description |
|
VLAN |
VLAN ID. |
|
(1::6, FF1E::2) |
(S, G) entry, where 0::0 in the S position means any IPv6 multicast sources. |
|
Port |
Member port. |
|
Host |
IPv6 address of the host. |
|
Uptime |
Length of time elapsed since the host joined the IPv6 multicast group. |
|
Expires |
Remaining timeout time for the host. The host timeout time is the same as the aging timer of the port. The timer is reset when the port receives an MLD report from the host. This field displays timeout if the host times out. |
Related commands
host-tracking (MLD-snooping view)
mld-snooping enable
mld-snooping host-tracking
display mld-snooping router-port
Use display mld-snooping router-port to display dynamic router port information.
Syntax
In standalone mode:
display mld-snooping router-port [ vlan vlan-id ] [ slot slot-number [ cpu cpu-number ] ]
In IRF mode:
display mld-snooping router-port [ vlan vlan-id ] [ chassis chassis-number slot slot-number [ cpu cpu-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 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. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays dynamic router port information for the global active MPU. (In IRF mode.)
cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.
Examples
# Display brief information about dynamic router ports for VLAN 2.
<Sysname> display mld-snooping router-port vlan 2
VLAN 2:
Router slots (0 in total):
Router ports (2 in total):
XGE3/1/1 (00:01:30)
XGE3/1/2 (00:00:23)
Table 8 Command output
|
Field |
Description |
|
VLAN 2 |
VLAN ID. |
|
Router slots (0 in total) |
(In standalone mode.) Slot numbers and total number of the cards that have dynamic router ports, except for the specified card or the MPU when no card is specified. (In IRF mode.) Chassis numbers, slot numbers, and total number of the cards that have dynamic router ports, except for the specified card or the global active MPU when no card is specified. |
|
Router ports (2 in total) |
Dynamic router ports and total number of dynamic router ports. |
|
(00:01:30) |
Remaining aging time for the dynamic router port. This field is always displayed for a global port (including Layer 2 aggregate interfaces). (In standalone mode.) For a non-global port, 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.) For a non-global port, 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. |
|
VLAN pairs (1 in total) |
VLAN pairs and total number of VLAN pairs. |
|
Out VLAN 5 In VLAN 2 |
The outer VLAN ID is 5, and the inner VLAN ID is 2. |
reset mld-snooping router-port
display mld-snooping static-group
Use display mld-snooping static-group to display static MLD snooping group entries.
Syntax
In standalone mode:
display mld-snooping static-group [ ipv6-group-address | ipv6-source-address ] * [ vlan vlan-id ] [ verbose ] [ slot slot-number [ cpu cpu-number ] ]
In IRF mode:
display mld-snooping static-group [ ipv6-group-address | ipv6-source-address ] * [ vlan vlan-id ] [ verbose ] [ chassis chassis-number slot slot-number [ cpu cpu-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 this keyword, the command displays brief information about static MLD snooping group entries.
slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays static MLD snooping group entries for the MPU. (In standalone mode.)
chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays static MLD snooping group entries for the global active MPU. (In IRF mode.)
cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.
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):
XGE3/1/2
Table 9 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 card for which the information is displayed. · slot—The entry has ports that reside on other cards, but not on the card for which the information is displayed. |
|
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—The entry does not exist. · normal—The entry is a correct entry. |
|
Host slots (0 in total) |
(In standalone mode.) Slot numbers and total number of the cards that have member ports, except for the specified card or the MPU when no card is specified. (In IRF mode.) Chassis numbers, slot numbers, and total number of the cards that have member ports, except for the specified card or the global active MPU when no card is specified. |
|
Host ports (1 in total) |
Member ports and 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
In standalone mode:
display mld-snooping static-router-port [ vlan vlan-id ] [ slot slot-number [ cpu cpu-number ] ]
In IRF mode:
display mld-snooping static-router-port [ vlan vlan-id ] [ chassis chassis-number slot slot-number [ cpu cpu-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 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. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays static router port information for the global active MPU. (In IRF mode.)
cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.
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):
XGE3/1/1
XGE3/1/2
Table 10 Command output
|
Field |
Description |
|
VLAN 2 |
VLAN ID. |
|
Router slots (0 in total) |
(In standalone mode.) Slot numbers and total number of the cards that have static router ports, except for the specified card or the MPU when no card is specified. (In IRF mode.) Chassis numbers, slot numbers, and total number of the cards that have static router ports, except for the specified card or the global active MPU when no card is specified. |
|
Static router ports and total number of static router ports. |
display mld-snooping statistics
Use display mld-snooping statistics to display statistics for the MLD messages and IPv6 PIM hello messages learned through MLD snooping.
Syntax
display mld-snooping statistics
Views
Any view
Predefined user roles
network-admin
network-operator
Examples
# Display statistics for the MLD messages and IPv6 PIM hello 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 11 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. |
|
error MLD messages |
Number of MLD messages with errors. |
Related commands
reset mld-snooping statistics
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 for 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. The VLAN-specific configuration 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 globally delete IPv6 multicast group policies.
Syntax
group-policy ipv6-acl-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
ipv6-acl-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 does not 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
An IPv6 multicast group policy filters MLD reports to control the IPv6 multicast groups that hosts can join.
This command does not take effect on static member ports, because static member ports do not send MLD reports.
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.
When you configure a rule in the IPv6 ACL, follow these restrictions and guidelines:
· An ACL rule containing the vpn-instance vpn-instance option does not take effect.
· 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 for all ports in different VLANs. If you configure multiple ACLs for all ports in the same VLAN, the most recent configuration takes effect.
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 seconds
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
seconds: 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 MLD-snooping view or for a VLAN in VLAN view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.
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 ]
As a best practice, 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 ]
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
host-tracking (MLD-snooping view)
Use host-tracking to enable host tracking globally.
Use undo host-tracking to disable host tracking globally.
Syntax
host-tracking
undo host-tracking
Default
Host tracking is disabled.
Views
MLD-snooping view
Predefined user roles
network-admin
Usage guidelines
You can enable host tracking globally for all VLANs in MLD-snooping view or for a VLAN in VLAN view. For a VLAN, the global configuration has the same priority as the VLAN-specific configuration.
Examples
# Enable host tracking globally.
<Sysname> system-view
[Sysname] mld-snooping
[Sysname-mld-snooping] host-tracking
Related commands
display mld-snooping host-tracking
mld-snooping host-tracking
last-listener-query-interval (MLD-snooping view)
Use last-listener-query-interval to set the MLD last listener query interval 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 seconds
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
seconds: Specifies the maximum response time for MLD general queries, in the range of 1 to 3174 seconds.
Usage guidelines
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.
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.
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
# Enable MLD snooping globally, 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
In a VLAN, the source IPv6 address of 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 the 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
enable (MLD-snooping view)
mld-snooping enable
mld-snooping drop-unknown
Use mld-snooping drop-unknown to enable dropping unknown IPv6 multicast data packets for a VLAN.
Use undo mld-snooping drop-unknown to disable dropping unknown IPv6 multicast data packets for a VLAN.
Syntax
mld-snooping drop-unknown
undo mld-snooping drop-unknown
Default
Dropping unknown IPv6 multicast data packets is disabled for a VLAN or VSI, and unknown IPv6 multicast data packets are flooded in the VLAN or VSI.
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 dropping unknown IPv6 multicast data packets.
<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
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 for 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 Ten-GigabitEthernet 3/1/1.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 3/1/1
[Sysname-Ten-GigabitEthernet3/1/1] 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 the 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 remove the limit on the maximum number of IPv6 multicast groups that a port can join.
Syntax
mld-snooping group-limit limit [ vlan vlan-list ]
undo mld-snooping group-limit [ vlan vlan-list ]
Default
No limit is placed on the maximum number of IPv6 multicast groups that a port can join.
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 Ten-GigabitEthernet 3/1/1, set the maximum number to 10 for IPv6 multicast groups that the port can join in VLAN 2.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 3/1/1
[Sysname-Ten-GigabitEthernet3/1/1] 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 IPv6 multicast group policies on a port.
Syntax
mld-snooping group-policy ipv6-acl-number [ vlan vlan-list ]
undo mld-snooping group-policy [ vlan vlan-list ]
Default
No IPv6 multicast group policies exist. 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
ipv6-acl-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 does not 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
An IPv6 multicast group policy filters MLD reports to control the IPv6 multicast groups that hosts can join.
This command does not take effect on static member ports, because static member ports do not send MLD reports.
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.
When you configure a rule in the IPv6 ACL, follow these restrictions and guidelines:
· An ACL rule containing the vpn-instance vpn-instance option does not take effect.
· 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 for different VLANs on a port. If you configure multiple ACLs for the same VLANs on a port, the most recent configuration takes effect.
Examples
# On Ten-GigabitEthernet 3/1/1, configure an IPv6 multicast group policy for VLAN 2 so that hosts attached to the port in VLAN 2 can join only the 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 ten-gigabitethernet 3/1/1
[Sysname-Ten-GigabitEthernet3/1/1] 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 seconds
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
seconds: 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.
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.
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 ]
As a best practice, 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 ]
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 remove the configuration of a simulated member host for an IPv6 multicast group.
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 Ten-GigabitEthernet 3/1/1 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 ten-gigabitethernet 3/1/1
[Sysname-Ten-GigabitEthernet3/1/1] mld-snooping host-join ff3e::101 source-ip 2002::22 vlan 2
mld-snooping host-tracking
Use mld-snooping host-tracking to enable host tracking for a VLAN.
Use undo mld-snooping host-tracking to disable host tracking for a VLAN.
Syntax
mld-snooping host-tracking
undo mld-snooping host-tracking
Default
Host tracking 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 for the VLAN.
You can enable host tracking for a VLAN in VLAN view or globally for all VLANs in MLD-snooping view. For a VLAN, the VLAN-specific configuration has the same priority as the global configuration.
Examples
# In VLAN 2, enable MLD snooping and then host tracking.
<Sysname> system-view
[Sysname] mld-snooping
[Sysname-mld-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] mld-snooping enable
[Sysname-vlan2] mld-snooping host-tracking
Related commands
display mld-snooping host-tracking
host-tracking (MLD-snooping view)
mld-snooping enable
mld-snooping last-listener-query-interval
Use mld-snooping last-listener-query-interval to set the MLD last listener query interval 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 MLD last listener query interval 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 seconds
undo mld-snooping max-response-time
Default
The maximum response time for MLD general queries is 10 seconds.
Views
VLAN view
Predefined user roles
network-admin
Parameters
seconds: 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.
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.
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.
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 Ten-GigabitEthernet 3/1/1, enable the IPv6 multicast group replacement feature for VLAN 2.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 3/1/1
[Sysname-Ten-GigabitEthernet3/1/1] mld-snooping overflow-replace vlan 2
Related commands
overflow-replace (MLD-snooping view)
mld-snooping proxy enable
Use mld-snooping proxy enable to enable MLD snooping proxying for a VLAN.
Use undo mld-snooping proxy enable to disable MLD snooping proxying for a VLAN.
Syntax
mld-snooping proxy enable
undo mld-snooping proxy enable
Default
MLD snooping proxying 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.
This command does not take effect on a VLAN that is a sub-VLAN of a multicast VLAN.
Examples
# In VLAN 2, enable MLD snooping and then MLD snooping proxying.
<Sysname> system-view
[Sysname] mld-snooping
[Sysname-mld-snooping] quit
[Sysname] vlan 2
[Sysname-vlan2] mld-snooping enable
[Sysname-vlan2] mld-snooping proxy enable
Related commands
enable (MLD-snooping view)
mld-snooping enable
subvlan (multicast-VLAN view)
mld-snooping querier
Use mld-snooping querier to enable the MLD snooping querier.
Use undo mld-snooping querier to disable the MLD snooping querier.
Syntax
mld-snooping querier
undo mld-snooping querier
Default
The MLD snooping querier 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.
For a sub-VLAN of an IPv6 multicast VLAN, this command takes effect only after you remove the VLAN from the IPv6 multicast VLAN.
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
enable (MLD-snooping view)
mld-snooping enable
subvlan (IPv6 multicast-VLAN view)
mld-snooping query-interval
Use mld-snooping query-interval to set the MLD general query interval for 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.
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
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
In a VLAN, the source IPv6 address for MLD reports 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 the 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 seconds
undo mld-snooping router-aging-time
Default
The aging timer for dynamic router ports is 260 seconds.
Views
VLAN view
Predefined user roles
network-admin
Parameters
seconds: 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 allow a port to become a dynamic router port.
Syntax
mld-snooping router-port-deny [ vlan vlan-list ]
undo mld-snooping router-port-deny [ vlan vlan-list ]
Default
A port is allowed to 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 Ten-GigabitEthernet 3/1/1 from becoming a dynamic router port in VLAN 2.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 3/1/1
[Sysname-Ten-GigabitEthernet3/1/1] 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
In a VLAN, 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 the 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 the configuration of static member ports.
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 Ten-GigabitEthernet 3/1/1 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 ten-gigabitethernet 3/1/1
[Sysname-Ten-GigabitEthernet3/1/1] 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 remove the configuration of static router ports.
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 Ten-GigabitEthernet 3/1/1 as a static router port in VLAN 2.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 3/1/1
[Sysname-Ten-GigabitEthernet3/1/1] 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. 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.
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
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 and IPv6 PIM hello 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 and IPv6 PIM hello 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 seconds
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
seconds: 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
snmp-agent trap enable mld-snooping
Use snmp-agent trap enable mld-snooping to enable SNMP notifications for MLD snooping.
Use undo snmp-agent trap enable mld-snooping to disable SNMP notifications for MLD snooping.
Syntax
snmp-agent trap enable mld-snooping [ global-entry-exceed ]
undo snmp-agent trap enable mld-snooping [ global-entry-exceed ]
Default
SNMP notifications for MLD snooping are enabled.
Views
System view
Predefined user roles
network-admin
Parameters
global-entry-exceed: Specifies notifications about the number of MLD snooping forwarding entries (including dynamic entries and static entries) reaching the maximum number. If you do not specify this keyword, the command enables or disables all SNMP notifications for MLD snooping.
Usage guidelines
The maximum number of MLD snooping forwarding entries is configured by using the entry-limit command.
To report critical MLD snooping events to an NMS, enable SNMP notifications for MLD snooping. For MLD snooping event notifications to be sent correctly, you must also configure SNMP on the device. For more information about SNMP configuration, see Network Management and Monitoring Configuration Guide.
Examples
# Disable all SNMP notifications for MLD snooping.
<Sysname> system-view
[Sysname] undo snmp-agent trap enable mld-snooping global-entry-exceed
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. The VLAN-specific configuration has the same priority as the configuration in MLD-snooping 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
