ZyXEL VES1724-56 User Guide - Page 222

Table 91, Label, Description

Page 222 highlights

Chapter 24 Multicast Table 91 Advanced Application > Multicast > Multicast Setting (continued) LABEL IGMP Filtering DESCRIPTION Select Active to enable IGMP filtering to control which IGMP groups a subscriber on a port can join. Note: If you enable IGMP filtering, you must create and assign IGMP filtering profiles for the ports that you want to allow to join multicast groups. Unknown Multicast Frame Specify the action to perform when the Switch receives an unknown multicast frame. Select Drop to discard the frame(s). Select Flooding to send the frame(s) to all ports. Reserved Multicast Group Multicast addresses (224.0.0.0 to 224.0.0.255) are reserved for the local scope. For examples, 224.0.0.1 is for all hosts in this subnet, 224.0.0.2 is for all multicast routers in this subnet, etc. A router will not forward a packet with the destination IP address within this range. See the IANA web site for more information. Port * Specify the action to perform when the Switch receives a frame with a reserved multicast address. Select Drop to discard the frame(s). Select Flooding to send the frame(s) to all ports. This field displays the port number. Settings in this row apply to all ports. Use this row only if you want to make some settings the same for all ports. Use this row first to set the common settings and then make adjustments on a port-by-port basis. Immed. Leave Max Group Num. IGMP Msg Limit IGMP Filtering Profile IGMP Querier Mode Apply Cancel Note: Changes in this row are copied to all the ports as soon as you make them. Select this option to set the Switch to remove this port from the multicast tree when an IGMP version 2 leave message is received on this port. Select this option if there is only one host connected to this port. Select Enable and enter a number (0~255) to limit the number of multicast groups this port is allowed to join. Once a port is registered in the specified number of multicast groups, any new IGMP join report frame(s) is dropped on this port. Select Enable and enter a number (0~255) to limit the number of multicast frames this port is allowed to flow though. New multicast frames are dropped once more than the specified number of multicast frames flow into a port at one time. Select the name of the IGMP filtering profile to use for this port. Otherwise, select Default to prohibit the port from joining any multicast group. You can create IGMP filtering profiles in the Multicast > Multicast Setting > IGMP Filtering Profile screen. The Switch treats an IGMP query port as being connected to an IGMP multicast router (or server). The Switch forwards IGMP join or leave packets to an IGMP query port. Select Auto to have the Switch use the port as an IGMP query port if the port receives IGMP query packets. Select Fixed to have the Switch always use the port as an IGMP query port. Select this when you connect an IGMP multicast server to the port. Select Edge to stop the Switch from using the port as an IGMP query port. The Switch will not keep any record of an IGMP router being connected to this port. The Switch does not forward IGMP join or leave packets to this port. Click Apply to save your changes to the Switch's run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring. Click Cancel to begin configuring this screen afresh. 222 VES1724-56 User's Guide

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Chapter 24 Multicast
VES1724-56 User’s Guide
222
IGMP Filtering
Select
Active
to enable IGMP filtering to control which IGMP groups a subscriber on a port
can join.
Note: If you enable IGMP filtering, you must create and assign IGMP filtering profiles for the
ports that you want to allow to join multicast groups.
Unknown
Multicast Frame
Specify the action to perform when the Switch receives an unknown multicast frame.
Select
Drop
to discard the frame(s). Select
Flooding
to send the frame(s) to all ports.
Reserved Multicast
Group
Multicast addresses (224.0.0.0 to 224.0.0.255) are reserved for the local scope. For
examples, 224.0.0.1 is for all hosts in this subnet, 224.0.0.2 is for all multicast routers in
this subnet, etc. A router will not forward a packet with the destination IP address within
this range. See the IANA web site for more information.
Specify the action to perform when the Switch receives a frame with a reserved multicast
address. Select
Drop
to discard the frame(s). Select
Flooding
to send the frame(s) to all
ports.
Port
This field displays the port number.
*
Settings in this row apply to all ports.
Use this row only if you want to make some settings the same for all ports. Use this row
first to set the common settings and then make adjustments on a port-by-port basis.
Note: Changes in this row are copied to all the ports as soon as you make them.
Immed. Leave
Select this option to set the Switch to remove this port from the multicast tree when an
IGMP version 2 leave message is received on this port.
Select this option if there is only one host connected to this port.
Max Group Num.
Select
Enable
and enter a number (0~255) to limit the number of multicast groups this
port is allowed to join. Once a port is registered in the specified number of multicast
groups, any new IGMP join report frame(s) is dropped on this port.
IGMP Msg Limit
Select
Enable
and enter a number (0~255) to limit the number of multicast frames this
port is allowed to flow though. New multicast frames are dropped once more than the
specified number of multicast frames flow into a port at one time.
IGMP Filtering
Profile
Select the name of the IGMP filtering profile to use for this port. Otherwise, select
Default
to prohibit the port from joining any multicast group.
You can create IGMP filtering profiles in the
Multicast
>
Multicast Setting
>
IGMP
Filtering Profile
screen.
IGMP Querier
Mode
The Switch treats an IGMP query port as being connected to an IGMP multicast router (or
server). The Switch forwards IGMP join or leave packets to an IGMP query port.
Select
Auto
to have the Switch use the port as an IGMP query port if the port receives
IGMP query packets.
Select
Fixed
to have the Switch always use the port as an IGMP query port. Select this
when you connect an IGMP multicast server to the port.
Select
Edge
to stop the Switch from using the port as an IGMP query port. The Switch will
not keep any record of an IGMP router being connected to this port. The Switch does not
forward IGMP join or leave packets to this port.
Apply
Click
Apply
to save your changes to the Switch’s run-time memory. The Switch loses
these changes if it is turned off or loses power, so use the
Save
link on the top navigation
panel to save your changes to the non-volatile memory when you are done configuring.
Cancel
Click
Cancel
to begin configuring this screen afresh.
Table 91
Advanced Application > Multicast > Multicast Setting
(continued)
LABEL
DESCRIPTION