Ip Cef Load-Sharing Algorithm - Cisco 4500M Command Reference Manual

Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches

ip cef load-sharing algorithm

To configure the load-sharing hash function so that the source TCP/UDP port, or the destination
TCP/UDP port, or both can be included in the hash in addition to the source and destination IP addresses,
use the ip cef load-sharing algorithm command. To revert back to the default, which does not include
the ports, use the no form of this command.
Syntax Description
include-ports
source source
destination dest
original
tunnel
universal
Defaults
Default load-sharing algorithm is disabled.
Note
This option does not include the source or destination port in the load-balancing hash.
Command Modes
Global configuration
Command History Release
12.1(12c)EW
Usage Guidelines
The original algorithm, tunnel algorithm, and universal algorithm are routed through hardware. For
software-routed packets, the algorithms are handled by the software. The include-ports option does not
apply to software-switched traffic.
Examples
This example shows how to configure the IP CEF load-sharing algorithm that includes Layer 4 ports:
Switch(config)# ip cef load-sharing algorithm include-ports
Switch(config)#
Related Commands
show ip cef vlan
78-16201-01
ip cef load-sharing algorithm {include-ports {source source | destination dest} | original |
tunnel | universal}
no ip cef load-sharing algorithm {include-ports {source source | destination dest} | original |
tunnel | universal}
Specifies algorithm that includes Layer 4 ports.
Specifies source port in the load-balancing hash functions.
Specifies destination port in the load-balancing hash. Uses source and
destination in hash functions.
Original algorithm; not recommended.
Specifies algorithm for use in tunnel-only environments.
Specifies the default IOS load-sharing algorithm.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
ip cef load-sharing algorithm
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