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Is a reboot required for changing the iproute sharing (ECMP) configuration?

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TitleIs a reboot required for changing the iproute sharing (ECMP) configuration?
Question
Is a reboot required for changing the iproute sharing (ECMP) configuration?
Environment
  • Summit X460, X480, X670, X770
  • BlackDiamond X8, 8800
  • EXOS
Answer
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.
 
      IRDP:
         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.
Additional notes

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