My Blog
Q: DrPeering -
I have a new transit tactic for your Internet Peering Playbook. It is similar to “Tactic 5 - Play the Market” and “Tactic 4 Renegotiate multi-year contracts.”
First, understand that we have 20-30Gbps of content to ship off to transit providers.
We could of course lock in a good price from a couple of transit providers, but that would lock us in to the metered price for the duration of the contract. Instead, we purchase transit from a field of transit providers, committing only to 1Gbps each on a 10Gbps circuit.
To see how this works, assume that the market price for transit is $2.50/Mbps and that each ISP has a price for traffic that bursts over the commit (i.e. it is not capped).
At the beginning of the month, we ask each ISP for their best burst price so we could decide who would receive the revenue for the remaining 13 Gbps. The answers come back as shown below between $2.00/Mbps and $2.70/Mbps.

For the rest of the month, care is taken to meet the 1 Gbps commitments while sending the bulk of the remaining traffic only to those with low burst prices as shown below.

At the end of the month, the ISPs that did not receive any burst traffic are given the chance to lower their burst price and receive more traffic and revenue next month.
In this way, we are able to keep the (burst) prices of transit dropping for the duration of the contract.
The other thing that we do is insist on only 1-year or 18-month terms. We have been very effective in this market at turning the thumb screws on the transit providers in the market. Keeping the duration short gives us more opportunities to negotiate the 1Gbps commit price.
This maneuver has worked well for us and would complement the other tactics in the book. Thanks for your consideration -
-- @aDbCc
A:
Thanks for this. I am adding it to the 2nd edition of the playbook. If you are willing to be cited as the contributor, please let me know.

Clever way to minimize cost of transit.
A Clever Transit Tactic
Tuesday, October 18, 2011
N E W
The Internet Peering Playbook: Connecting to the Core of the Internet
ISBN: 978-1-937451-00-4
Available Now in print, and as a kindle book on Amazon.com and as an ePub on lulu.com and on the Apple iBookStore. A bundle is available from the DrPeering site as well.
Abstract: One can understand the protocols, the technologies, and the routing algorithms, but that doesn't tell the story. The Internet is a global ecosystem of cooperating and competing networks, strategically interconnected to maximize performance and minimize costs. If you are operating a growing Internet service, it is essential that you understand how the Internet Peering Ecosystem works at the core.
“...destined to be the Internet Peering Bible” – Jeff Turner, InterStream
“Essential Reading.” – Martin Sanne, SEACOM
“Great foundation in understanding the basis for ISP peering,
their interactions, and provides insight into where those relationships are heading.”
– David Mandel, Cisco Systems
“...the benchmark of the most useful technical workshop ever.”–Jaco Muller