Configuration Guide
IGMP Snooping Configuration
Aging timer
for
the
dynamic
router port
Enable a timer for
each dynamic router
port. The timeout time
is the aging time of
the dynamic router
port.
Receive the IGMP
general query packet
or the IP PIM Hello
packet.
Remove
the
port
from the router port
list.
Aging timer
for
the
dynamic
member
port
Enable a timer for
each
dynamic
member
port.
The
timeout time is the
aging time of the
dynamic
member
port.
Receive the IGMP
query packet.
Remove
the
port
from
the
IGMP
Snooping multicast
group forwarding list.
Working Principle
General Query and Specific-Group Query
IGMP querier sends the general query packets to all hosts and routers(with the address:
224.0.0.1) in the local network segment periodically to query for the IP multicast group member
in the network segment. Upon receiving the IGMP general query packets, the switch forwards
those query packets to all ports in this VLAN, and processes the packet-receiving port as
follows:
If this port has already been in the router port list, reset the aging timer.
If this port has not been in the router port list, add the port to the list and enable the aging
timer.
After receiving the IGMP general query packets, the multicast device enable the aging
timer for all member ports. Set the aging time as the maximum respond time of the IGMP
query packets. When the aging time is 0, no member port receives the multicast flow and
the port will be removed from the IGMP Snooping forwarding list.
After receiving the IGMP specific-group query packets, the multicast device enable the aging
timer for all member ports in the specific group. Set the aging time as the maximum respond
time of the IGMP query packets. When the aging time is 0, no member port receives the
multicast flow and the port will be removed from the IGMP Snooping forwardin.
For the IGMP specific-group source query packets, it is no need to update the aging timer.
Membership Report
In the following circumstances, the host sends the IGMP membership report to the IGMP
querier:
Содержание RG-S2900G-E Series
Страница 1: ...RG S2900G E Series Switch RGOS Configuration Guide Release 10 4 2b12 p1 ...
Страница 91: ...Configuration Guide Configuring PoE Configuration ...
Страница 133: ...Configuration Guide EEE Configuration ...
Страница 319: ...Configuration Guide QinQ Configuration ...
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Страница 409: ...IP Routing Configuration 1 Static Route Configuration ...
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Страница 413: ...Multicast Configuration 1 IGMP Snooping Configuration 2 MLD Snooping Configuration ...
Страница 621: ...Configuration Guide CPU Protection Configuration udp helper 180 4 dhcp client 180 4 lacp 180 4 ...
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Страница 758: ...ACL QoS Configuration 1 Access Control List Configuration 2 QoS Configuration ...
Страница 801: ...Reliability Configuration 1 RLDP Configuration 2 TPP Configuration 3 SEM Configuration ...
Страница 901: ...Configuration Guide ERSPAN Configuration ...
Страница 902: ...Web based Configuration 1 Web based Configuration ...