Cisco 7604 User Manual

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Cisco 7600 Series Router Cisco IOS Software Configuration Guide, Release 12.2SX
OL-4266-08
Chapter 28 Configuring IPv4 Multicast Layer 3 Switching
Configuring IPv4 Multicast Layer 3 Switching
This example shows how to enable installation of directly connected subnets:
Router(config)# mls ip multicast connected
Router(config)#
Specifying the Flow Statistics Message Interval
By default, the supervisor engine forwards flow statistics messages to the MSFC every 25 seconds. The
messages are forwarded in batches, and each batch of messages contains statistics for 25 percent of all
flows. If you leave the interval at the default of 25 seconds, it will take 100 seconds to forward statistics for
all flows to the MSFC.
To specify how often flow statistics messages forwarded from the supervisor engine to the MSFC,
perform this task:
This example shows how to configure the supervisor engine to forward flow statistics messages to the
MSFC every 10 seconds:
Router(config)# mls ip multicast flow-stat-timer 10
Router(config)#
Enabling Shortcut-Consistency Checking
When you enable the shortcut-consistency checking feature, the multicast route table and the
multicast-hardware entries are checked for consistency, and any inconsistencies are corrected. You can
view inconsistencies by entering the show mls ip multicast consistency-check command.
If consistency checking is enabled, the multicast route table will be scanned every two seconds and a full
scan is completed within 4 minutes.
To enable shortcut-consistency checking, perform this task:
Command Purpose
Router(config)# mls ip multicast connected
Enables installation of directly connected subnets.
Router(config)# no mls ip multicast connected
Disables installation of directly connected subnets.
Command Purpose
Router(config)# mls ip multicast flow-stat-timer num
Specifies how the supervisor engine forwards flow
statistics messages to the MSFC.
Router(config)# no mls ip multicast flow-stat-timer num
Restores the default.
Command Purpose
Router(config)# mls ip multicast consistency-check
Enables shortcut-consistency checking.
Router(config)# no mls ip multicast consistency-check num
Restores the default.

Cisco 7604 Specifications

General

Brand	Cisco
Model	7604
Category	Network Router
Language	English