Default Mld Snooping Configuration; Mld Snooping Configuration Guidelines - Cisco Catalyst 2960 Software Configuration Manual

Configuring IPv6 MLD Snooping

Default MLD Snooping Configuration

Table 36-1
Table 36-1
Feature
MLD snooping (Global)
MLD snooping (per VLAN)
IPv6 Multicast addresses
IPv6 Multicast router ports
MLD snooping Immediate Leave
MLD snooping robustness variable
Last listener query count
Last listener query interval
TCN query solicit
TCN query count
MLD listener suppression

MLD Snooping Configuration Guidelines

When configuring MLD snooping, consider these guidelines:
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Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
36-6
shows the default MLD snooping configuration.
Default MLD Snooping Configuration
You can configure MLD snooping characteristics at any time, but you must globally enable MLD
snooping by using the ipv6 mld snooping global configuration command for the configuration to
take effect.
When the IPv6 multicast router is a Catalyst 6500 switch and you are using extended VLANs (in the
range 1006 to 4094), IPv6 MLD snooping must be enabled on the extended VLAN on the Catalyst
6500 switch in order for the Catalyst 2960, 2960-S, or 2960-C switch to receive queries on the
VLAN. For normal-range VLANs (1 to 1005), it is not necessary to enable IPv6 MLD snooping on
the VLAN on the Catalyst 6500 switch.
MLD snooping and IGMP snooping act independently of each other. You can enable both features
at the same time on the switch.
The maximum number of address entries allowed for the switch stack is 1000.
Default Setting
Disabled.
Enabled. MLD snooping must be globally enabled for VLAN
MLD snooping to take place.
None configured.
None configured.
Disabled.
Global: 2; Per VLAN: 0.
Note The VLAN value overrides the global setting. When the
VLAN value is 0, the VLAN uses the global count.
Global: 2; Per VLAN: 0.
The VLAN value overrides the global setting. When the
Note
VLAN value is 0, the VLAN uses the global count.
Global: 1000 (1 second); VLAN: 0.
The VLAN value overrides the global setting. When the
Note
VLAN value is 0, the VLAN uses the global interval.
Disabled.
2.
Enabled.
Chapter 36 Configuring IPv6 MLD Snooping
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