Syntax: show ipv6 pim [ vrf vrf-name ] sparseThe vrf parameter allows you to configure IPv6 PIM on the virtual routing instance (VRF) specified by
the vrf-name variable.
The following table displays the output from the show ipv6 pim sparse command.Output from the show ipv6 pim sparse command TABLE 26
Field Description
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 IPv6 PIM Sparse hello messages to its IPv6 PIM Sparse
neighbors. This field shows the number of seconds between hello messages. IPv6 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 IPv6 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 IPv6 PIM Sparse group. When forwarding packets from IPv6 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.
Bootstrap Msg interval How frequently the BSR configured on the device sends the RP set to the RPs within the
IPv6 PIM Sparse domain. The RP set is a list of candidate RPs and their group prefixes.
The group prefix of a candidate RP indicates the range of IPv6 PIM Sparse group
numbers for which it can be an RP.
NOTE
This field contains a value only if an interface on the device is elected to be the BSR.
Otherwise, the field is blank.
IPv6 Multicast Protocols
FastIron Ethernet Switch IP Multicast Configuration Guide 177
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