Reference Guide

676 | IPv4 Routing
www.dell.com | support.dell.com
Usage
Information
By default, FTOS distributes incoming traffic based on a hash algorithm using the following
criteria:
• IP source address
• IP destination address
• TCP/UDP source port
• TCP/UDP destination port
Related
Commands
load-balance (E-Series)
e
By default, for E-Series chassis, FTOS uses an IP 5-tuple to distribute IP traffic over members
of a Port Channel as well as equal cost paths. To designate another method to balance traffic
over Port Channel members, use the
load-balance command.
Syntax
load-balance [ip-selection 3-tuple | ip-selection packet-based] [mac]
To return to the default setting (IP 5-tuple), use one of the following commands:
•
no load-balance ip-selection 3-tuple
• no load-balance ip-selection packet-based
• no load-balance mac
Parameters
hash-algorithm ecmp
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