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For those buying wavelengths (compared to an mpls circuit), are you buying diverse transport? If not, how are you dealing with convergence stability? -Michael >>-----Original Message----- >>From: MICE Discuss [mailto:[log in to unmask]] On Behalf >>Of Colin Baker >>Sent: Friday, October 27, 2017 3:29 PM >>To: [log in to unmask] >>Subject: Re: [MICE-DISCUSS] Multi-IX Traffic Management? >> >>On 27.10.2017 15:01, Matthew Beckwell wrote: >>> For my own curiosity: >>> >>> I've seen quite a few networks in the last year or so connecting >>> themselves to other out-of-market IX's (I presume getting some cheap >>> wavelengths and bringing it back to Minnesota). >>> >>> A couple of questions for those of you that are doing this: >>> >>> 1. I'm assuming this is enabling you to accommodate requirements from >>> other networks that require peering at multiple locations, even though >>> technically your network doesn't really extend that far (or maybe it's >>> something else?). >> >>For us, the goal is to reach networks which are not on exchanges which >>we're already connected. The big ones are at MICE, but there are other >>exchanges we can get to reasonably inexpensively that have such a large >>number of networks connected that it makes sense financially (compared >>to buying more transit). Traffic from a huge number of ASNs, >>particularly if most are on a route server, can really add up. >> >>Peering in multiple locations is a nice benefit to this, but usually not >>a primary goal for us. >> >>> 2. How are folks monitoring, managing, or manipulating this >>> out-of-market traffic? (Using BGP MED, Prepending, Localpref, or some >>> other mechanism to "prefer" your traffic enter and exit closer to >>> where you really are?) >> >>If you haven't already, install as-stats >>(https://github.com/manuelkasper/AS-Stats) to monitor things, which will >>make it clear if something is out of whack. In most cases, our IGP >>handles outbound traffic in a way the makes sense. Inbound traffic can >>be trickier - a few networks will publish action communities or accept >>MEDs, and we utilize those tools when available. Prepending is >>occasionally useful. Announcing more specifics in certain spots always >>felt like a jerk move so I tend to avoid that, but that's a thing I >>suppose. >> >>-- >>Colin Baker >>SupraNet Communications, Inc. >>(608) 572-7634 >>[log in to unmask] >> >>This message is subject to the SupraNet Email Confidentiality Policy >>which is located at http://supranet.net/confidentiality