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What's default load balance mechanism of LAG on EX4200 switch and EX4500 switch? And how to modify it ?

  • 1.  What's default load balance mechanism of LAG on EX4200 switch and EX4500 switch? And how to modify it ?

    Posted 11-10-2015 21:41

    Hi dear all,

     

    In cisco switch, the default load balance of port-channel is based on source MAC, and it can be change to  dst-ip ,dst-mac,src-dst-ip,src-dst-mac,src-ip ,src-mac. 

    In Juniper switch like EX4200 and EX4500, what's the default load balance mechanism of LAG? How to modify it ? And what choices do we have ?

    I googled but only found the configuration example of EX9200. But EX4200 and EX4500 do not have the hash-key command statement. So how can I change it?

    Thanks.

     

    Best Regards



  • 2.  RE: What's default load balance mechanism of LAG on EX4200 switch and EX4500 switch? And how to modify it ?
    Best Answer

    Posted 11-11-2015 02:00

    It's not user configurable on those platforms. On the EX4200 and EX4500 then IPv4 is load-balanced on a hash of a tuple of source IP, dest IP, source port and dest port. See http://kb.juniper.net/InfoCenter/index?page=content&id=KB22943&actp=search



  • 3.  RE: What's default load balance mechanism of LAG on EX4200 switch and EX4500 switch? And how to modify it ?

    Posted 11-11-2015 17:51
    Thanks for your reply.