Brocade FastIron Ethernet Switch IP Multicast Configuration Guide - Manual (Page 108)

The vrf keyword allows you to display PIM sparse configuration information for the VRF instance
identified by the vrf-name variable.
This example shows the PIM Sparse configuration information on PIM Sparse device A in Figure 5 on
page 95.
The following table shows the information displayed by the show ip pim sparse command.
Output of the show ip pim sparse command TABLE 4
This field... Displays...
Global PIM Sparse mode settings
Maximum mcache Maximum number of multicast cache entries.
Current Count Number of multicast cache entries used.
Hello interval How frequently the device sends IPIM Sparse hello messages to its PIM Sparse
neighbors. This field shows the number of seconds between hello messages. PIM
Sparse routers use hello messages to discover one another.
Neighbor timeout Number of seconds the device waits for a hello message from a neighbor before
determining that the neighbor is no longer present and is not removing cached PIM
Sparse forwarding entries for the neighbor. Default is 105 seconds.
Join or Prune interval How frequently the device sends IPv6 PIM Sparse Join or Prune messages for the
multicast groups it is forwarding. This field shows the number of seconds between Join or
Prune messages.
The device sends Join or Prune messages on behalf of multicast receivers that want to
join or leave an PIM Sparse group. When forwarding packets from PIM Sparse sources,
the device sends the packets only on the interfaces on which it has received join
requests in Join or Prune messages for the source group.
Inactivity interval Number of seconds a forwarding entry can remain unused before the router deletes it.
Default is 180 sec.
Hardware Drop
Enabled Indicates whether hardware drop is enabled or disabled.
To prevent unwanted multicast traffic from being sent to the CPU, PIM Routing and
Passive Multicast Route Insertion (PMRI) can be used together to ensure that multicast
streams are only forwarded out ports with interested receivers and unwanted traffic is
dropped in the hardware on Layer 3 Switches.
Prune Wait Interval Number of seconds a PIM device waits before stopping traffic to neighbor devices that do
not want the traffic. Range is from zero to three seconds. Default is three seconds.
IPv4 Multicast Protocols
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