same load balance in two device with same load balance algorithm

[hdihd9162]

hello i have two cisco l2 switch

i set same load balancing algorithm in two switch 

i send same traffic to two switch 

its out from port 0 switch 1 

and out from port 5 switch 2

how to config two switch to get same output from all device

can help me?

[Giuseppe Larosa]

Hello @hdihd9162 ,

to avoid polarization load balancing uses an hash with a seed that is chosen at boot time and that is different on each device.

So what you see is to be considered normal

Hope to help

Giuseppe

[Joseph W. Doherty]

Exactly what I too suspected, but platform not named.  I recall (?) on some large Catalysts (6500s?), there was a configuration setting for different polarization algorithms.

Don't know for sure, but on old/ancient low end Catalysts they might have always polarized but newer Catalysts might always use a seed value.

[Joseph W. Doherty]

Oh, for those unfamiliar with polarization. . .

https://www.cisco.com/c/en/us/support/docs/content-networking/load-balancing/215112-troubleshoot-polarization-in-port-channe.html

https://community.cisco.com/t5/service-providers-knowledge-base/asr9000-xr-load-balancing-architecture-and-characteristics/ta-p/3124809

https://networklessons.com/cisco/ccie-routing-switching-written/cef-polarization

https://learningnetwork.cisco.com/s/question/0D53i00000KsyFUCAZ/ip-cef-load-balancing

[hdihd9162]

I need it on 9k 

[hdihd9162]

i need it same i looking for awnser

[MHM Cisco World]

It must be same PO if the hash same'

Try use in both SW 

show platform software fed switch active etherchannel 1 load- 
balance mac <src mac> <dst mac>

Check the selection port 

MHM

[hdihd9162]

ITS NOT SAME AT TWO DEVICE