Configure Global Multicast Parameters

Learn how to configure global multicast parameters in Prisma SD-WAN.
Configure global multicast parameters after you enable multicast for a Layer 3 LAN interface.
  1. Select
    Map
    Claimed Devices
    Configure the device
    Routing
    Multicast
    Global Configuration
    .
    You can view the
    Multicast
    tab only after you enable multicast for a Layer 3 LAN interface.
  2. Select
    SPT Switchover
    to enable Shortest Path Tree (SPT) switchover.
    SPT Switchover
    is enabled by default. This indicates that once the first multicast packet is received, that is, when the receiver receives the source address, the Designated Router (DR) at the receiver’s end and the Rendezvous Point (RP) choose the optimal path to relay information from the source to the receiver.
    It is a good practice to always enable SPT.
    The descriptions for the global multicast parameters are based on the PIM-SM specification outlined in RFC 4601 (https://datatracker.ietf.org/doc/html/rfc4601).
    The multicast parameters are read-only for devices running version 5.6.
    Field
    Description
    Default Value
    DR Priority
    Indicates the probability of a PIM interface being elected as a Designated Router (DR). For Static RP, the DR Priority advertised in a PIM Hello is 1.
    1
    PIM Hello Interval
    Indicates the time interval between two PIM Hello packets.
    30 s
    PIM Hello Hold Time
    Indicates the time interval for which a neighbor should wait for a Hello message from a sender neighbor before pruning the neighbor.
    105 s
    PIM Join/Prune Interval
    Indicates the time interval between two Join/Prune messages sent to a neighbor.
    60 s
    PIM Join/Hold Interval
    Indicates the time interval for which a receiver should wait for the next Join/Prune message from the neighbor before pruning the neighbor.
    210 s
    PIM Triggered Hello Delay
    Indicates the value of the Hello timer for delay between triggered Hello messages.
    4 s
    PIM TTL Threshold
    Packets with a lower TTL than the PIM TTL Threshold are discarded.
    1
    PIM SPT Threshold
    Indicates the cut-over time from Rendezvous Point Tree (RPT) to SPT.
    100 s
    IGMP Query Interval
    Indicates the time interval between successive IGMP queries.
    125 s
    IGMP Query Response Interval
    Indicates the maximum response time advertised in the IGMP query.
    10 s
    IGMP Last Member Query Count
    Indicates the number of times the ION device sent IGMP queries to the last known active host on the subnet.
    3
    IGMP Last Member Query Response Interval
    Indicates the time interval for the ION device to respond to the IGMP query from the last known active host on the subnet.
    1 s
    IGMP Querier Timeout
    Indicates the timeout interval to wait before becoming a Querier.
    380 s

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