User's Manual

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509
Users Manual of CS-6306R
Run the following command to limit the output rate of a multicast flow to n kbps
Command Purpose
ip multicast rate-limit
outgroup-listaccess-list1 source-list
access-list2 kbps
Configures the maximum output rate
limitation of the multicast flow in a certain
range.
50.2.8 Configuring IP Multicast Helper
Run the command ip multicast helper-map to use the multicast route to connect two broadcast networks in
the multicast network. Run the command no ip multicast helper-map to cancel the command.
Command Purpose
interfacetype number
Enters the interface configuration
mode.
ip multicast helper-map
broadcastgroup-address access-list
Configures the command ip multicast
helper to convert the broadcast
message to the multicast message.
ip directed-broadcast
Allows the directional broadcast.
ip forward-protocol [port]
Configures the port number allowing to
forward the message.
On the last-hop router connecting the destination broadcast network, perform the following operations:
Command Purpose
interface type number
Enters the interface configuration
mode.
ip directed-broadcast
Allows the directional broadcast.
ip multicast
helper-mapgroup-address
broadcast-address access-list
Configures the command ip multicast
helper to convert the multicast
message to the broadcast message.
ip forward-protocol [port]
Configures the port number allowing to
forward the message.
Example
The following example shows how to configure the command ip multicast helper.
The configuration of the router is shown in the following figure. Configure the command ip directed-broadcast
on the e0 port of the first-hop router to handle the directional message. Configure ip multicast helper-map
broadcast 230.0.0.1 testacl1, allowing to convert the UDP broadcast message with port number 4000 that is
sent from the source address 192.168.20.97/24 to the multicast message with the destination address
230.0.0.1.
Configure the command ip directed-broadcast on the e1 port of the last-hop router to handle the directional
message. Configure ip multicast helper-map 230.0.0.1 172.10.255.255 testacl2, allowing to convert the
multicast message with port number 4000 and the destination address 230.0.0.1 that is sent from the source