Reference Guide

IPv4 Routing | 707
Parameters
Defaults
IP 5-tuple (IP SA, IP DA, IP Protocol Type, Source Port and Destination Port)
Command Modes
CONFIGURATION
Command
History
Usage
Information
By default, FTOS distributes incoming traffic based on a hash algorithm using the
following criteria:
• IP source address
• IP destination address
• IP Protocol type
• TCP/UDP source port
• TCP/UDP destination port
The table below lists the load balance command options and how the command
combinations effect the distribution of traffic.
ip-selection 3-tuple
Enter the keywords ip-selection 3-tuple to distribute IP traffic
based on the following criteria:
• IP source address
• IP destination address
• IP Protocol type
Note: For IPV6, only the first 32 bits (LSB) of IP SA and IP DA are
used for hash generation.
ip-selection packet-based
Enter the keywords ip-selection packet-based to distribute IPV4
traffic based on the IP Identification field in the IPV4 header.
This option does not affect IPV6 traffic; that is, IPV6 traffic is not
distributed when this command is executed.
Note: Hash-based load-balancing on MPLS does not work when
packet-based hashing (load-balance ip-selection packet-based) is
enabled.
mac Enter the keyword mac to distribute traffic based on the following:
• MAC source address, and
• MAC destination address
Version 8.1.1.0 Introduced on E-Series ExaScale
Version 6.1.1.0 Introduced for E-Series
Note: For IPV6, only the first 32 bits (LSB) of IP Source Address and IP Destination
Address are used for hash generation.
Table 24-3. Configurations of the load-balance Command
Configuration Switched IP Traffic
Routed IP Traffic
(IPV4 Only)
Switched Non-IP
Traffic
Default (IP 5-tuple) IP 5-tuple IP 5-tuple MAC based
ip-selection 3-tuple
IP 3-tuple IP 3-tuple MAC based
mac MAC based IP 5-tuple MAC based