C
HAPTER
9
| IGMP Snooping
IGMP Snooping Setting
– 68 –
◆ IGMP Fast-Leave - Immediately deletes a member port of a multicast
service if a leave packet is received on that port. Fast Leave can
improve bandwidth usage for a network which frequently experiences
many IGMP host add and leave requests. (Default: Disabled)
◆ Unknown Multicast — When the table used to store multicast entries
for IGMP snooping is filled, no new entries are learned. If no router port
is configured in the attached VLAN, any subsequent multicast traffic not
found in the table is either dropped or flooded throughout the VLAN.
(Default: Drop)
◆ Query Interval — Sets the frequency at which the switch sends IGMP
host-query messages. (Range: 60-600 seconds, Default: 125)
◆ Response Time — Sets the time between receiving an IGMP Report
for an IP multicast address on a port before the switch sends an IGMP
Query out of that port and removes the entry from its list. (Range: 10-
25 seconds, Default: 10)
◆ Router Timeout — The time the switch waits after the previous
querier stops before it considers it to have expired. (Range: 60-600
seconds, Default: 125)
◆ Last Member Query Interval — The interval to wait for a response to
a group-specific or group-and-source-specific query message.
(Range: 1-25 seconds ; Default: 1 second)
◆ Robustness Variable — Specifies the robustness (or expected packet
loss) for interfaces. The robustness value is used in calculating the
appropriate range for other IGMP variables. (Range: 1-255; Default: 2)
◆ Host Timeout — The time the switch waits for an IGMP report from a
host for a multicast group. When IGMP reports are not received, host
ports are removed from the member list of that multicast group.
◆ Querier Election Time — The time the switch waits to receive IGMP
queries from other routers. If no queries are received, the switch itself
will become the querier (when enabled).
WEB INTERFACE
To configure IGMP Snooping global settings:
1. Click Configuration, IGMP Snooping, IGMP Snooping Setting.
2. Enable IGMP Snooping on the switch.
3. Modify other IGMP global settings as required.
4. Click Update.
To Next Page
Loading...
Need help?
General