Brocade BigIron RX Series Configuration Guide - Manual (Page 766)

688 BigIron RX Series Configuration Guide
53-1002484-04
Displaying PIM Sparse configuration information and statistics
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You can change the number of packets that the BigIron RX sends using the RP before switching to
using the SPT.
To change the number of packets the BigIron RX sends using the RP before switching to the SPT,
enter commands such as the following.
BigIron RX(config)# router pim
BigIron RX(config-pim-router)# spt-threshold 1000
Syntax: [no] spt-threshold infinity | <num>
The infinity | <num> parameter specifies the number of packets. If you specify infinity, the BigIron
RX sends packets using the RP indefinitely and does not switch over to the SPT. If you enter a
specific number of packets, the BigIron RX does not switch over to using the SPT until it has sent
the number of packets you specify using the RP.
Changing the PIM join and prune message interval
By default, the BigIron RX sends PIM Sparse Join/Prune messages every 60 seconds. These
messages inform other PIM Sparse routers about clients who want to become receivers (Join) or
stop being receivers (Prune) for PIM Sparse groups.
NOTE
Use the same Join/Prune message interval on all the PIM Sparse routers in the PIM Sparse domain.
If the routers do not all use the same timer interval, the performance of PIM Sparse can be adversely
affected.
To change the Join/Prune interval, enter commands such as the following.
BigIron RX(config)# router pim
BigIron RX(config-pim-router)# message-interval 30
Syntax: [no] message-interval <num>
The <num> parameter specifies the number of seconds and can be from 10 through 65535. The
default value is 60.
MLL optimization
MLL optimization is enabled by default, except for trunks in order that trunk load sharing remains
unaffected. The ip multicast-routing optimization oif-list trunks command can be used to turn on
optimization for trunks such that the degree of 'even balance' may be less than when not
optimized.
BigIron RX(config)# ip multicast-routing optimization oif-list trunks
Syntax: ip multicast-routing optimization oif-list trunks
Displaying PIM Sparse configuration information and
statistics
You can display the following PIM Sparse information:
• Basic PIM Sparse configuration information