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    Example: Configuring a Multicast Bandwidth Map

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

    Requirements

    This example uses the following hardware and software components:

    • JunosE Release 7.1.0 or higher-numbered releases
    • E Series router (ERX7xx models, ERX14xx models, the ERX310 router, the E120 router, or the E320 router)
    • ASIC-based line modules that support Fast Ethernet or Gigabit Ethernet

    Before you begin configuring multicast on IPv4 interfaces, you must:

    • Configure IPv4 interfaces. For more information about configuring IPv4 interfaces, see Configuring IPv4 in JunosE IP, IPv6, and IGP Configuration Guide.

    Overview

    The multicast bandwidth map is a route map that uses the set admission-bandwidth, set qos-bandwidth, set admission-bandwidth adaptive, or set qos-bandwidth adaptive commands. Multicast interface-level admission control, port-level admission control, and QoS adjustment all use a single multicast bandwidth map.

    The adaptive commands configure an auto-sense mechanism for measuring the multicast bandwidth.

    Configuring an IPv4 Multicast Bandwidth Map

    Configuring a Route Map

    Step-by-Step Procedure

    Define a route map using the set admission-bandwidth and set qos-bandwidth commands.

    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.
      [edit]host1(config)#route-map mcast-bandwidths permit 10
    2. Match the route map to an access list.
      [edit]host1(config-route-map)#match ip address sdtv
    3. Configure multicast bandwidths.
      [edit multicast bandwidths for admission control and QoS adjustment]host1(config-route-map)#set admission-bandwidth 2000000 host1(config-route-map)#set qos-bandwidth 2000000
    4. Configure the route map.
      [edit]host1(config-route-map)#route-map mcast-bandwidths permit 20
    5. Match the route map to an access list.
      [edit]host1(config-route-map)#match ip address hdtv
    6. Configure multicast bandwidths.
      [edit multicast bandwidths for admission control and QoS adjustment]host1(config-route-map)#set admission-bandwidth 10000000 host1(config-route-map)#set qos-bandwidth 10000000

    Configuring an Access List

    Step-by-Step Procedure

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

    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.

    1. Configure access lists.
      [edit access lists]host1(config)#access-list sdtv permit ip host 31::1 ff3e::0/112 host1(config)#access-list hdtv permit ip host 32::1 ff3e::0/112 host1(config)#access-list hdtv permit ip host 32::2 ff3e::0/112

    Published: 2014-08-20