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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)

     

    Thanks,

     



  • 2.  RE: ae interface and reth interface

    Posted 03-04-2013 23:58

     

    Official docs:

    http://www.juniper.net/techpubs/software/junos-security/junos-security10.2/junos-security-swconfig-interfaces/aggregated-ethernet-overview-section.html#aggregated-ethernet-overview-section

     

    http://www.juniper.net/techpubs/software/junos-security/junos-security10.2/junos-security-swconfig-interfaces/understand-cc-reth-interface-lags-section.html

     

    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.

     

    src: http://www.juniper.net/techpubs/software/junos-security/junos-security10.2/junos-security-swconfig-interfaces-and-routing/understand-lacp-in-cc-mode-section.html

     

     

    Simple Explanation:

     

    Aggregated Ethernet Interface(ae)

    http://jsrx.juniperwiki.com/index.php?title=Aggregate_Ethernet

    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