Re: Drops in Core

[Mike Hammett <nanog () ics-il net>]

I'd guess first\last\peering. 




----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 



Midwest Internet Exchange 
http://www.midwest-ix.com 


----- Original Message -----

From: "Glen Kent" <glen.kent () gmail com> 
To: nanog () nanog org 
Sent: Saturday, August 15, 2015 11:47:31 AM 
Subject: Drops in Core 

Hi, 

Is it fair to say that most traffic drops happen in the access layers, or 
the first and the last miles, and the % of packet drops in the core are 
minimal? So, if the packet has made it past the first mile and has 
"entered" the core then chances are high that the packet will safely get 
across till the exit in the core. Sure once it gets off the core, then all 
bets are off on whether it will get dropped or not. However, the key point 
is that the core usually does not drop too many packets - the probability 
of drops are highest in the access side. 

Is this correct? 

Glen