Foundry Networks Switch and Router Installation And Configuration Manual page 506

Foundry Switch and Router Installation and Configuration Guide
Enabling Unicast High-Performance Mode
To increase the capacity of the forwarding cache for unicast entries, use the following CLI method.
NOTE: To place a change to the high-performance mode into effect, you must reload the software after saving
the change to the startup-config file.
USING THE CLI
To enable the high-performance mode, enter the following command:
BigIron(config)# ip high-perf
BigIron(config)# write memory
BigIron(config)# end
BigIron# reload
Syntax: [no] ip high-perf
To disable the high-performance mode, enter the following command:
BigIron(config)# no ip high-perf
BigIron(config)# write memory
BigIron(config)# end
BigIron# reload
USING THE WEB MANAGEMENT INTERFACE
You cannot configure this option using the Web management interface.
Enabling the Default-Route Aggregation Mode
By default, the IP forwarding cache of a NetIron, BigIron, or TurboIron/8 Layer 3 Switch contains a unique entry for
each host destination of a default route. You can increase the cache's capacity for default route entries by
enabling the default-route aggregation mode. This option increases the cache's capacity for default routes by
aggregating forwarding information for multiple destinations into single default-route entries.
NOTE: This feature applies only to the NetIron (chassis), BigIron, and TurboIron/8 Layer 3 Switches.
When you enable default route aggregation, the Layer 3 Switch associates a network prefix length with each
forwarding cache entry that is based on a default network route.
The Layer 3 Switch reprograms the default route cache entries if external events cause a conflict between entries.
To configure the forwarding cache to aggregate entries for default route destinations, use the following CLI
method.
NOTE: You do not need to reload the software to place a change to default-route aggregation into effect.
USING THE CLI
To enable the default-route aggregation mode, enter the following command:
BigIron(config)# ip dr-aggregate
Syntax: [no] ip dr-aggregate
To disable the default-route aggregation mode, enter the following command:
BigIron(config)# no ip dr-aggregate
USING THE WEB MANAGEMENT INTERFACE
You cannot configure this option using the Web management interface.
Displaying the Forwarding Cache Entries for Default Routes
To display the default route entries in the IP forwarding cache, use the following CLI method. This method
enables you to display the default route entries without displaying other types of forwarding entries.
15 - 64 December 2000