Mld Snooping - Cisco SF200-24 Administration Manual
Small business 200 series smart switch
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- Quick start manual (57 pages) ,
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Configuring Multicast Forwarding
MLD Snooping
STEP 5
MLD Snooping
Cisco Small Business 200 1. 1 Series Smart Switch Administration Guide
•
Last Member Query Counter—Enter the number of IGMP Group-Specific
Queries sent before the switch assumes there are no more members for the
group, if the switch is the elected querier.
•
Operational Last Member Query Counter—Displays the operational value
of the Last Member Query Counter.
•
Last Member Query Interval—Enter the Maximum Response Delay to be
used if the switch cannot read Max Response Time value from group-
specific queries sent by the elected querier.
•
Operational Last Member Query Interval—Displays the Last Member
Query Interval sent by the elected querier.
•
Immediate Leave—Enable Immediate Leave to decrease the time it takes to
block a Multicast stream sent to a member port when an IGMP Group Leave
message is received on that port.
Click Apply. The Running Configuration file is updated.
When IGMP/MLD snooping is enabled in a switch on a VLAN, it analyzes the IGMP/
MLD packets it receives from the VLAN connected to the switch and from the
Multicast routers in the network.
When a switch learns that a host is using IGMP/MLD messages to register to
receive a Multicast stream, optionally from a specific source, the switch adds the
registration in its Multicast Forwarding Data Base.
IGMP/MLD snooping can effectively reduce Multicast traffic from streaming
bandwidth-intensive IP applications. A switch using IGMP/MLD snooping only
forwards Multicast traffic to the hosts interested in that traffic. This reduction of
Multicast traffic reduces the packet processing at the switch, and also reduces the
workload at the end hosts, since they do not have to receive and filter all of the
Multicast traffic generated in the network.
The following versions are supported:
•
IGMP v1/v2/ v3
•
MLD v1/v2
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