Configuring PIM-SM 643
Configuring PIM-DM
Graft Retry Period
In PIM-DM, graft is the only type of message that uses the acknowledgment
mechanism. In a PIM-DM domain, if a router does not receive a graft-ack message
from the upstream router within the specified time after it sends a graft message,
the router keeps sending new graft messages at a configurable interval, namely
graft retry period, until it receives a graft-ack from the upstream router.
Follow these steps to configure graft retry period:
n
For the configuration of other timers in PIM-DM, refer to “Configuring PIM
Common Timers” on page 656.
Configuring PIM-SM
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A device can serve as a C-RP and a C-BSR at the same time.
PIM-SM Configuration
Tas k Lis t
Complete these tasks to configure PIM-SM:
Configuration
Prerequisites
Before configuring PIM-SM, complete the following task:
■ Configure any unicast routing protocol so that all devices in the domain are
interoperable at the network layer.
To do… Use the command… Remarks
Enter system view system-view -
Enter interface view interface interface-type
interface-number
-
Configure graft retry period pim timer graft-retry
interval
Optional
3 seconds by default
Task Remarks
“Configuring PIM-SM” on page 643 Required
“Configuring a BSR” on page 644 “Performing basic C-BSR configuration” on
page 645
Optional
“Configuring a global-scope C-BSR” on page
646
Optional
“Configuring an admin-scope C-BSR” on
page 646
Optional
“Configuring a BSR admin-scope region
boundary” on page 647
Optional
“Configuring global C-BSR parameters” on
page 647
Optional
“Configuring an RP” on page 648 “Configuring a static RP” on page 648 Optional
“Configuring a C-RP” on page 648 Optional
“Enabling auto-RP” on page 649 Optional
“Configuring C-RP timers” on page 649 Optional
“Configuring PIM-SM Register Messages” on page 650 Optional
“Disabling RPT-to-SPT Switchover” on page 651 Optional
“Configuring PIM Common Information” on page 653 Optional
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