Mld Snooping Configuration Guidelines; Enabling Or Disabling Mld Snooping - Cisco 3750G - Catalyst Integrated Wireless LAN Controller Configuration Manual

Configuring IPv6 MLD Snooping
Table 37-1
Feature
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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•
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Enabling or Disabling MLD Snooping

By default, IPv6 MLD snooping is globally disabled on the switch and enabled on all VLANs. When
MLD snooping is globally disabled, it is also disabled on all VLANs. When you globally enable MLD
snooping, the VLAN configuration overrides the global configuration. That is, MLD snooping is enabled
only on VLAN interfaces in the default state (enabled).
Catalyst 3750 Switch Software Configuration Guide
37-6
Default MLD Snooping Configuration (continued)
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 3750 or Catalyst 3560 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 multicast entries allowed on the switch or switch stack is determined by
the configured SDM template.
The maximum number of address entries allowed for the switch stack is 1000.
Default Setting
None configured.
None configured.
Disabled.
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: 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: 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.
Disabled.
Chapter 37 Configuring IPv6 MLD Snooping
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