Yes - a reboot is required for the changes to take affect. A warning is displayed when the command is executed.
x101.4 # config iproute sharing
max-gateways Maximum ECMP gateways per IP destination supported in switch hardware
x101.4 # config iproute sharing max-gateways
<max_gateways> Maximum ECMP gateways 2, 4 (Default), or 8
x101.4 # config iproute sharing max-gateways 8
Warning: This command will only take effect after a save and reboot.
The same warning will also show up under ‘show ipconfig’ command output as well until the configuration is saved.
* x101.5 # show ipconfig
Use Redirects : Disabled
IpOption LSRR : Enabled
IpOption SSRR : Enabled
IpOption RR : Enabled
IpOption TS : Enabled
IpOption RA : Enabled
Route Sharing : Disabled
Originated Packets : Don't require ipforwarding
Max Shared Gateways : Current: 4 Configured: 8
A save and reboot are required before the configured max-gateways will take effect.
Advertisement Address: 255.255.255.255 Maximum Interval: 600
Minimum Interval: 450 Lifetime: 1800 Preference: 0
A Save and a Reboot will be required for the changes to take affect.