Reference Guide

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
• MAC destination address
Defaults IP 5-tuple (IP SA, IP DA, IP Protocol Type, Source Port and Destination Port)
Command Modes CONFIGURATION
Command History
Version 8.1.1.0 Introduced on the E-Series ExaScale.
Version 6.1.1.0 Introduced on the E-Series.
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
NOTE: For IPV6, only the first 32 bits (LSB) of IP Source Address and IP Destination
Address are used for hash generation.
The table below lists the load balance command options and how the command
combinations affect the distribution of traffic.
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
ip-selection 3-tuple
and mac
MAC based IP 3-tuple MAC based
ip-selection packet-
based
Packet based: IPV4
No distribution: IPV6
Packet based: IPV4 MAC based
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