Cisco 350 Series Administration Manual page 359

Multicast
IPv6 Multicast Configuration
STEP 3
STEP 4
Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
To configure MLD proxy on an interface, select a static VLAN and click Edit. Enter the
following fields:
• MLD Snooping Status—Select to enable MLD Snooping on the VLAN. The device
monitors network traffic to determine which hosts have asked to be sent Multicast
traffic. The device performs MLD snooping only when MLD snooping and Bridge
Multicast filtering are both enabled.
• MRouter Ports Auto Learn—Select to enable Auto Learn of the Multicast router.
• Immediate Leave—Select to enable the switch to remove an interface that sends a
leave message from the forwarding table without first sending out MAC-based general
queries to the interface. When an MLD Leave Group message is received from a host,
the system removes the host port from the table entry. After it relays the MLD queries
from the Multicast router, it deletes entries periodically if it does not receive any MLD
membership reports from the Multicast clients. When enabled, this feature reduces the
time it takes to block unnecessary MLD traffic sent to a device port.
• Last Member Query Counter—Number of MLD group-specific queries sent before
the device assumes there are no more members for the group, if the device is the elected
querier.
- Use Query Robustness (x)—This value is set in
number in parentheses is the current query robustness value.
- User Defined—Enter a user-defined value.
• MLD Querier Status—Select to enable this feature. This feature is required if there is
no Multicast router.
• MLD Querier Election—Whether the MLD querier election is enabled or disabled. If
the MLD Querier election mechanism is enabled, the MLD Snooping querier supports
the standard MLD Querier election mechanism specified in RFC3810.
If the MLD Querier election mechanism is disabled, the MLD Snooping querier delays
sending General Query messages for 60 seconds after it was enabled, and if there is no
other querier, it starts sending General Query messages. It stops sending General Query
messages when it detects another querier. The MLD Snooping Querier resumes sending
General Query messages if it does hear another querier for a Query Passive interval that
equals: Robustness * (Query Interval) + 0.5 * Query Response Interval.
• MLD Querier Version— Select the MLD version to be used if the device becomes the
elected querier. Select MLDv2 if there are switches and/or Multicast routers in the
VLAN that perform source-specific IP Multicast forwarding. Otherwise, select
MLDv1.
Click Apply. The Running Configuration file is updated.
MLD Interface Settings
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