Hi Chin-
    
    I think your slides blend two separate issues:   EROS; and Resolving
    loop path ambiguity of bidirectional STPs. 
    The path ambiguity is a artifact of loops in the inter-domain
    topology, not EROs.
    I have added two slides to your deck (see attached) that explain my
    point.   
    
    We can discuss at the call
    Jerry
    
    On 6/6/12 3:34 AM, Chin Guok wrote:
    
Hi all,
      
      
      Sorry for not getting this out sooner.
      
      
      There has been some discussion in a smaller group on how to
      resolve the ambiguity of EROs that use bi-directional STPs.  I've
      tried to capture the proposed solutions from the discussion and
      present them in the attached slide deck.  I apologize to the folks
      in the discussion if I misrepresented your proposals, please feel
      free to make corrections.
      
      
      Thanks.
      
      
      - Chin
      
      
      
      
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