Digisol DG-FS4528P, Руководство по управлению

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C
HAPTER
18 | Multicast Filtering
Filtering and Throttling IGMP Groups
– 400 –
profile can contain one or more addresses, or a range of multicast
addresses; but only one profile can be assigned to a port. When enabled,
IGMP join reports received on the port are checked against the filter
profile. If a requested multicast group is permitted, the IGMP join report is
forwarded as normal. If a requested multicast group is denied, the IGMP
join report is dropped.
IGMP throttling sets a maximum number of multicast groups that a port
can join at the same time. When the maximum number of groups is
reached on a port, the switch can take one of two actions; either “deny” or
“replace.” If the action is set to deny, any new IGMP join reports will be
dropped. If the action is set to replace, the switch randomly removes an
existing group and replaces it with the new multicast group.
N
OTE
:
IGMP filtering and throttling only applies to dynamically learned
multicast groups. It does not apply to statically configured groups.
E
NABLING
IGMP
F
ILTERING AND
T
HROTTLING
Use the IGMP Snooping > IGMP Filter Configuration page to enable IGMP
filtering and throttling globally on the switch.
CLI R
EFERENCES
"ip igmp filter (Global Configuration)" on page 872
C
OMMAND
U
SAGE
To implement IGMP filtering and throttling on the switch, you must first
enable the feature globally and create IGMP profile numbers.
P
ARAMETERS
These parameters are displayed:
IGMP Filter – Enables IGMP filtering and throttling globally for the
switch. (Default: Disabled)
IGMP Profile – Creates an IGMP profile. (Range: 1-4294967295)
W
EB
I
NTERFACE
To enable IGMP filtering and throttling on the switch:
1. Click IGMP Snooping, IGMP Filter Configuration.
2. Create a profile group by entering a number in the text box and clicking
Add.
3. Enable IGMP Filter Status, and click Apply.