Planet Technology IP DSLAM IDL-4801 User Manual
Page 458
IDL series User Guide
458
only if there is one host behind the port. This is because if there
are multiple hosts behind the port then it will lead to traffic
disruption for other hosts who might still be listening to that
multicast group. If the mode is set to 'FastNormal', the Leave
message is forwarded and the Leave processing is triggered
immediately without waiting for any trigger from the Querier. The
'FastNormal' mode, thus, saves the delay (equal to the time taken
for Leave message to reach router and Querier processing time
for it and the time taken for Query to reach IGMP Snoop module)
in Leave processing.
IGMP PacketsPrio'
This parameter specifies the Egress Priority to be set in case the
Ethernet frames carrying IGMP packets sent over this port need to
be tagged by the control plane. In case the frame came tagged,
priority that came in the tagged frame will not be changed. The
configured priority will also be used for choice of traffic
class/Queue on outgoing interface whether the frame is tagged . In
case the bridge port is over an Aggregated ATM VC, this will also
be used to identify the VC, on which the packet is to be sent.
There is an additional support of invalid value for egress priority in
IGMP port info to indicate that the priority is not to be forced on
egress frame for this port.
MaxGroupAllowed
This parameter controls the no. of simultaneous channels that can
be received by this port
Querier Status
This parameter controls whether a port can become querier
McastVlan Status
This parameter controls the status of Multicast Vlan option on a
port
No McastVlan Match
Action
This parameter specifies the action to be taken when multicast
vlan can not be determined for a port where multicast vlan option
is enabled Possible action values will be :Drop, Transparently
forward, and Learn based on ingress vlan
Caution:
z
An entry in this table shall not be applicable for a bridge port created over the
PPPoE interface.