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Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
Chapter 2 Scalability and Performance
Configuring the Cisco 10000 Series Router for High Scalability
Disabling Gratuitous ARP Requests
To maximize the performance of the router, disable gratuitous ARP requests, using the no ip
gratuitous-arp command (
Example 2-9).
Example 2-9 Disabling Gratuitous ARP Requests
Router(config)# no ip gratuitous-arp
Configuring a Virtual Template Without Interface-Specific Commands
If you configure a virtual template interface with interface-specific commands, the
Cisco
10000 series router does not achieve the highest possible scaling. To verify that the router does
not have interface-specific commands within the virtual template interface configuration, use the test
virtual-template <number> subinterface command.
Including interface-specific commands in a virtual template can limit PPP session scaling. Table 2-7 lists
the interface-specific commands that prevent the Cisco 10000 series router from attaining the highest
possible PPP session scaling.
Table 2-7 Interface-Specific Commands That Prevent PPP Scaling
Command Function
access-expression Builds a bridge Boolean access expression.
asp Asynchronous Port (ASP) subcommands.
autodetect Autodetects encapsulations on serial interfaces.
bridge-group Transparent bridging interface parameters.
bsc Binary Synchronous Communications (BSC)
interface subcommands.
bstun Block Serial Tunnel (BSTUN) interface
subcommands.
carrier-delay Specifies delay for interface transitions.
cdp Cisco Discovery Protocol (CDP) interface
subcommands.
clock Configures the serial interface clock.
compress Sets the serial interface for compression.
custom-queue-list Assigns a custom queue list to an interface.
diffserv Differentiated Services (diffserv) for
provisioning.
down-when-looped Forces a looped serial interface down.
encapsulation Sets the encapsulation type for an interface.
fair-queue Enables fair queuing on an interface.
full-duplex Configures full-duplex operational mode.
h323-gateway Configures the H.323 Gateway.
half-duplex Configures half-duplex and related commands.