ECS4660-28F_Management Guide-R03

C HAPTER 52 | Multicast Routing Commands
PIM Multicast Routing
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ipv6 pim
max-graft-retries
This command configures the maximum number of times to resend a Graft
message if it has not been acknowledged. Use the no form to restore the
default value.
SYNTAX
ipv6 pim max-graft-retries retries
no ipv6 pim max-graft-retries
retries - The maximum number of times to resend a Graft.
(Range: 1-10)
DEFAULT SETTING
3
COMMAND MODE
Interface Configuration (VLAN)
EXAMPLE
Console(config-if)#ipv6 pim max-graft-retries 5
Console(config-if)#
ipv6 pim
state-refresh
origination-interval
This command sets the interval between sending PIM-DM state refresh
control messages. Use the no form to restore the default value.
SYNTAX
ipv6 pim state-refresh origination-interval seconds
no ipv6 pim max-graft-retries
seconds - The interval between sending PIM-DM state refresh
control messages. (Range: 1-100 seconds)
DEFAULT SETTING
60 seconds
COMMAND MODE
Interface Configuration (VLAN)
COMMAND USAGE
◆ The pruned state times out approximately every three minutes and the
entire PIM-DM network is reflooded with multicast packets and prune
messages. The state refresh feature keeps the pruned state from
timing out by periodically forwarding a control message down the
distribution tree, refreshing the prune state on the outgoing interfaces
of each router in the tree. This also enables PIM routers to recognize
topology changes (sources joining or leaving a multicast group) before
the default three-minute state timeout expires.