Multicast Bandwidth Map Example

The following example creates a multicast bandwidth map for both multicast traffic admission control and QoS adjustment:

Note: In this example, you can replace the set admission-bandwidth command and set qos-bandwidth command with their adaptive command counterparts.

1. Define a route-map using the set admission-bandwidth and set qos-bandwidth commands. You can optionally issue the set priority command.

   host1(config)#route-map mcast-bandwidths permit 10

   host1(config-route-map)#match ip address sdtv

   host1(config-route-map)#set admission-bandwidth 2000000

   host1(config-route-map)#set qos-bandwidth 2000000

   host1(config-route-map)#set priority 100

   host1(config-route-map)#route-map mcast-bandwidths permit 20

   host1(config-route-map)#match ip address hdtv

   host1(config-route-map)#set admission-bandwidth 10000000

   host1(config-route-map)#set qos-bandwidth 10000000

   host1(config-route-map)#set priority 200

   host1(config-route-map)#end

2. Define the access list for use by the match ip address command to match (S,G) and (*,G) entries.

   host1(config)#access-list sdtv permit ip host 31.0.0.1 232.0.0.0 0.0.0.255

   host1(config)#access-list hdtv permit ip host 32.0.0.1 232.0.0.0 0.0.0.255

   host1(config)#access-list hdtv permit ip host 32.0.0.2 232.0.0.0 0.0.0.255

   host1(config-route-map)#end

   Note: You can also define a prefix-list or a prefix-tree for use by the match ip address command to match (S,G) and (*,G) entries.

For additional information about configuring QoS adjustment, see Configuring Multicast QoS Adjustment.

For additional information about configuring interface-level and port-level admission control, see Blocking and Limiting Multicast Traffic.

For additional information about creating route maps, see JUNOSe IP Services Configuration Guide .

set admission-bandwidth

• Use to set a multicast bandwidth for admission control.
• Use the adaptive keyword to define the bandwidth as adaptive (automatically sensed).
• Example

  host1(config-route-map)#set admission-bandwidth 2000000

• Use the no version to remove the set clause from a route map.
• See set admission-bandwidth.

set priority

• Use to configure a priority value for the <S, G> data stream on a physical port.
• Dynamic multicast admission control enables only prioritized groups to join the interface after the configured priority limit is reached on the physical port. The system records the priority when a new <S, G> entry is created.
• Example

  host1(config-route-map)#set priority 100

• Use the no version to remove the priority value.
• See set priority.

set qos-bandwidth

• Use to set a multicast bandwidth for QoS adjustment.
• Use the adaptive keyword to define the bandwidth as adaptive (automatically sensed).
• Example

  host1(config-route-map)#set qos-bandwidth 10000000

• Use the no version to remove the set clause from a route map.
• See set qos-bandwidth.

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