ExtremeSwitching (Other)

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  • 1.  L2 or L3 Load Sharing

    Posted 12-08-2014 14:14
    Hi!

    Is there anyone who can explain a bit about the differences between layer 2 and layer 3 load sharing?

    Why would I choose layer 2 before layer 3 for example?

    If there's only multicast on the ports, would it be better to use layer 3?

    Any information is greatly appreciated.

    Thanks!


  • 2.  RE: L2 or L3 Load Sharing

    Posted 12-08-2014 15:10
    Layer 2 will consider only Mac address for hashing
    L3 considers Ip .... If it is multicast with different IP subnets l3 should be good


  • 3.  RE: L2 or L3 Load Sharing

    Posted 12-08-2014 15:10
    Hi PARTHIBAN,

    Is it Multicast traffic will load shared in a lag???


  • 4.  RE: L2 or L3 Load Sharing

    Posted 12-08-2014 16:50
    Additionally, when using L3 routing algorithms you can benefit of "equal cost load balancing", which actually distributes traffic based on link load.


  • 5.  RE: L2 or L3 Load Sharing

    Posted 12-08-2014 16:50
    Hi Robert,

    Could you explain more about L3 routing protocol to "equal path load balancing" for traffic to distributes the load on links. Thanks.


  • 6.  RE: L2 or L3 Load Sharing

    Posted 12-08-2014 16:50
    Hi Paul,
    Just ask Google about it. For example, it leads to this Wikipedia article: http://en.wikipedia.org/wiki/Equal-cost_multi-path_routing
    The common routing protocol to use in a LAN is OSPF by the way. Again, Google knows a lot about it.


  • 7.  RE: L2 or L3 Load Sharing

    Posted 12-08-2014 16:50
    Thanks anyway Robert, Here i am in the HUB.