[bess] label scheme in EVPN A-D per EVI routes

[Jeffrey (Zhaohui) Zhang]

Hi,

This is another question coming out of the shepherd review of RFC7432bis.

In the following text, what does "disposition" mean exactly? Just "forwarding"?

   Note that the above allows the Ethernet A-D per EVI route to be
   advertised with one of the following granularities:

   *  One Ethernet A-D route per <ESI, Ethernet Tag ID> tuple per
      MAC-VRF.  This is applicable when the PE uses MPLS-based
      disposition with VID translation or may be applicable when the PE
      uses MAC-based disposition with VID translation.

Is it that the label alone will identify the outgoing AC w/o a MAC lookup, and 
it can also identify bridge table in which a MAC lookup is done?

   *  One Ethernet A-D route for each <ESI> per MAC-VRF (where the
      Ethernet Tag ID is set to 0).  This is applicable when the PE uses
      MAC-based disposition or MPLS-based disposition without VID
      translation.

Is it that the VID in the packet plus the label will determine the outgoing AC 
or the bridge table in which a MAC lookup is done?

Thanks.
Jeffrey


Juniper Business Use Only

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