[afnog] local pref issue with HE

[Tarig Yassin]

but that makes it difficult for us to loadshare our links using AS-PATH, so what is the recommended solution?

Subject: Re: [afnog] local pref issue with HE
To: tariq198487 at hotmail.com; afnog at afnog.org
From: laszlo at heliacal.net
Date: Wed, 23 Dec 2015 14:00:30 +0000


  
    
  
  
    They set their local preferences based on where the route is learned
    from.  That takes precedence over AS path length.

    

    customer (140) > peer (100) > transit (70)

    

    -Laszlo

    

    

    

    On 2015-12-23 07:16, Tarig Yassin
      wrote:

    
    
      
      
        Hi Afnog

        
        

        
        We're trying to loadshare two uplinks
          from different upstream providers using AS-PREPEND.

        
        

        
        the issue is how matter we prepend the
          2nd link still the 1st link is preferred.

        
        

        
        To clarify more, despite the 2nd route
          below has
          longer AS-PATH, 
        but still HE prefers the 1st route, I
          try to
          understand the reason,and
        
        why the prepend won't work and why HE
          changes the
          value of Local-pref.
        
         
        

        
        > 41.202.160.0/24 AS-PATH: 1299,
          2914,33788                     
              Local-pref:70
        > 41.202.160.0/24 AS-PATH:
          15412,33788,33788,33788       
          Local-pref:100
        

        thanks,

        -- 

        Tarig Yassin

        Sudan

         
      

      
      

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