Expand all | Collapse all

ae interface and reth interface

  • 1.  ae interface and reth interface

    Posted 03-03-2013 22:00

    Hello Knowledge Gurus,


    can anyone point me to the documentation link describing difference between aggregated ethernet and redundant ethernet interface (reth)




  • 2.  RE: ae interface and reth interface

    Posted 03-04-2013 23:58


    Official docs:



    Relation between the two:

    In chassis cluster mode, aggregated Ethernet interfaces (ae) and redundant Ethernet interfaces (reth) coexist. Because the functionality of a redundant Ethernet interface relies on the JUNOS aggregated Ethernet framework, you can think of it as a special aggregated Ethernet interface.





    Simple Explanation:


    Aggregated Ethernet Interface(ae)

    Aggregate Ethernet (ae) is a way to aggregate ethernet interfaces (duh!). In laymans terms, you can bundle multiple links together to function as a single logical high bandwidth link.



    Redundant Ethernet Interface(reth)

    • An interface bundle made up of two or more Ethernet links, equally from each node in the cluster to form a single logical interface, acting as Active- Passive pair
    • Used in a cluster where userspace daemon JSRPD determines the active member
    • One IP Address, One vMAC . owned by node with active member
    • RETH must be associated to an RG in the cluster