I'm not setting it on my router locally but sending it over to Cogent as a community string per page 22 of their user guide.

http://cogentco.com/files/docs/customer_service/guide/global_cogent_customer_user_guide.pdf

They use it to manipulate how traffic gets back to me so that is incoming from my routers view.

I also pad the AS for the networks that I prefer to come back through the other ISP..


On 2/7/2014 5:27 AM, Olivier Benghozi wrote:
Hi Vlade,

Well, if you are trying to balance the incoming traffic load with local-pref 
attribute, I can understand your disappointment :)
Since it doesn't work at all this way: local-pref is local to an AS and deals 
with outgoing traffic only.

B)  We have our own AS and IP space. I advertise them to both Cogent and our 
other ISP. I use the local preference attribute to share the load for incoming 
traffic between both ISPs. In the last 5 outages over the last few years, this 
has happened twice. I'm waiting on the RFO so I can further investigate why 
this happened. I think someone mentioned this in a post a few months ago too.


--
Vlade Ristevski
Network Manager
IT Services
Ramapo College
(201)-684-6854


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