103
3-6.2 VLAN
Configuration
Parameter
Description
When MLD snooping is enabled on a VLAN, the switch acts to minimize unnecessary
multicast traffic. If the switch receives multicast traffic destined for a given multicast
address, it forwards that traffic only to ports on the VLAN that have MLD hosts for
that address. It drops that traffic for ports on the VLAN that have no MLD hosts.
It will use the last entry of the currently displayed entry as a basis for the next
lookup. When the end is reached, the text "No More Entries" is shown in the
displayed table. Use the buttons to start over.
Web Interface
To configure the MLD Snooping VLAN Configuration in the web interface:
1.
Click Configuration, MLD Snooping, then VLAN Configuration.
2.
Specify the VLAN ID with entries per page.
3.
Click “Refresh” to refresh an entry of the MLD Snooping VLAN
Configuration Information.
4.
Click “<< or >>” to move to previous or next entry.
Figure 3-7.2: The MLD Snooping VLAN Configuration.
VLAN ID:
The VLAN ID of the entry.
Snooping Enabled:
Enables the per-VLAN MLD snooping. Only up to 32 VLANs can
be selected.
MLD Querier:
A router sends MLD query messages onto a particular link. This router
is called the “Querier”. It enables the MLD querier in the VLAN.
Compatibility:
Compatibility is maintained by hosts and routers taking appropriate
actions depending on the versions of MLD operating on hosts and routers within a
network. The allowed selection is MLD-Auto, Forced MLDv1, and Forced MLDv2. The
default compatibility value is “MLD-Auto”.
Rv:
Robustness Variable. The robustness variable allows tuning for the expected
packet loss on a network. The allowed range is 1 to 255. The default robustness
variable value is 2.
QI:
Query Interval. The query interval is the interval between general queries sent by
the querier. The allowed range is 1 to 31744 seconds. The default query interval is
125 seconds.
QRI:
Query Response Interval. The maximum response delay used to calculate the
maximum response code inserted into the periodic general queries. The allowed
range is 0 to 31744 in tenths of seconds. The default query response interval is 100
in tenths of seconds (10 seconds).