Administrator Guide

Parameters
vrf vrf-name (Optional) Enter the keyword vrf followed by the name of the VRF.
interface interface Enter the following keywords and slot/port or number information:
• For a Port Channel interface, enter the keywords port-channel then a number.
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then
the slot/port information.
• For a VLAN, enter the keyword vlan followed by a number from 1 to 4094.
Command Modes EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.11(3.0) Introduced on the S3048–ON, S4048–ON, S4048T-ON, S6000–ON, S6010–ON,
S6100–ON, Z9100–ON, S3100, and C9010.
Example
Dell#show ipv6 mld interface vlan 20
Vlan 20 is up, line protocol is up
Inbound MLD access group is not set
Internet address is fe80::92b1:1cff:fef4:9b63/64
MLD is enabled on interface
MLD query interval is 60 seconds
MLD querier timeout is 125 seconds
MLD max query response time is 10 seconds
MLD last member query response interval is 1000 ms
MLD immediate-leave is enabled for all groups
MLD activity: 0 joins
MLD querying router is 35::1 (this system)
MLD version is 2
MLD Snooping
MLD snooping allows the switch to examine the MLD packets and forwards the decision based on their content. You can configure MLD
snooping in subnets that receive MLD queries from either MLD or the MLD snooping querier. MLD snooping limits the IPv6 multicast
traffic at Layer 2 by configuring Layer 2 LAN ports and dynamically forwards the IPv6 multicast traffic to the ports that want to receive it.
Hosts join IPv6 multicast groups either by sending an unsolicited MLD report or by sending an MLD report in response to a general query
from an IPv6 multicast router (the switch forwards general queries from IPv6 multicast routers to all the ports in a VLAN). The switch
snoops these reports and in response to a snooped MLD report, the switch creates an entry in its forwarding table for the VLAN on which
the report was received. When the other hosts that are interested in this multicast traffic send MLD reports, the switch snoops their
report and adds them to the existing forwarding table entry. The switch creates only one entry per VLAN in the forwarding table for each
multicast group, for which it snoops an MLD report.
clear ipv6 mld snooping groups
Clear entries from the group cache table.
Syntax
clear ipv6 mld snooping groups [interface | group-address]
Parameters
interface Enter the following keywords and slot/port or number information:
• For a 1-Gigabit Ethernet interface, enter the keyword GigabitEthernet followed
by the slot/port information.
• For a Port Channel interface, enter the keywords port-channel then a number.
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then
the slot/port information.
• For a VLAN, enter the keyword vlan followed by a number from 1 to 4094.
group-address (OPTIONAL) Enter the group address in the following format: x:x:x:x::x. The :: notation
specifies successive hexadecimal fields of zero.
1046 Multicast Listener Discovery Protocol