Command Line Reference Guide

Command
History
Version Description
9.5(0.1) Introduced on the Z9500.
9.3(0.1) Introduced on the S6000.
Usage
Information
Route prefixes stored in the L3 host table are managed using ECMP next-hop
forwarding.
A warning message is displayed after you enter the command stating that this
setting takes effect for existing routes only when IPv4 route prefixes are cleared
from the LPM routing table (RTM). To enable storage of IPv4 route prefixes in the
LPM table, disable this setting by entering the
no ipv4 unicast-host-route
command.
Example
Dell(conf)#ipv4 unicast-host-route
Warning: Command will take effect for existing routes only
when IPv4
route prefixes are cleared from RTM
Dell(conf)#no ipv4 unicast-host-route
load-balance
By default, the system uses an IP 4-tuple (IP SA, IP DA, Source Port, and Destination Port) 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.
Z9500
Syntax
load-balance {ip-selection [dest-ip | source-ip]} | {mac [dest-
mac | source-dest-mac | source-mac]} | {tcp-udp | ingress-port
[enable]}
To return to the default setting (IP 4-tuple), use the no load-balance {ip-
selection [dest-ip | source-ip]} | {mac [dest-mac | source-
dest-mac | source-mac]} | {tcp-udp | ingress-port
[enable]}command.
Parameters
ip-selection
{dest-ip |
source-ip}
Enter the keywords to distribute IP traffic based on the
following criteria:
• dest-ip — Uses destination IP address and destination
port fields to hash. The hashing mechanism returns a 3-
bit index indicating which port the packet should be
forwarded.
• source-ip — Uses source IP address and source port
fields to hash. The hashing mechanism returns a 3-bit
index indicating which port the packet should be
forwarded.
IPv4 Routing
831