RE: [apops] AP Routing

  • To: "Miguel A.L. Paraz" <map at internet dot org dot ph>, <apops at apnic dot net>
  • Subject: RE: [apops] AP Routing
  • From: "Barry Raveendran Greene" <bgreene at cisco dot com>
  • Date: Sat, 2 Dec 2000 09:58:47 -0800
  • Importance: Normal
  • In-reply-to: <20001202153101.B8003 at mail dot q-linux dot com>
  • Sender:
    • Hello Miguel,
      The Telcos are using a bilateral peering technique that I called "AP Mesh."
      The peering agreement is derived from the way Telcos peer for international
      voice traffic. Each side pays for 1/2 the circuit with an QOS level set that
      triggers an automatic upgrade. So if the QOS level is set to be 70% average
      utilization during the top 4 peek hours of the day, then the circuit would
      be upgraded on both sides as soon as this level is reached.
      This allowed the two parties to start with 128Kbps between each other and
      then work up to the real speed needed to support peering traffic between
      There are some slides in this in an old trans-oceanic backbone presentation
      As you mentioned, it is a peering technique that has worked in Asia. It is
      not restricted to Telcos, ISP can do it. It is just that the techniques
      spread like wild fire in '96-'97 - mainly because the peering technique was
      familiar (being similar to what is done on voice with out the settlement).
      > -----Original Message-----
      > From: owner-apops at lists dot apnic dot net [mailto:owner-apops at lists dot apnic dot net]On
      > Behalf Of Miguel A.L. Paraz
      > Sent: Friday, December 01, 2000 11:31 PM
      > To: apops at apnic dot net
      > Subject: [apops] AP Routing
      > This is in response to Philip's mail on the routing SIG.
      > I find that the ISP's with the best routing within AP are Telcos
      > - economics
      > I perhaps.  I buy transit from PH telcos and from US ISP's, from
      > poking around
      > the routing tables adjust the preference to use the telcos for
      > the AP networks
      > they can reach directly without passing through the US.
      > I was wondering if it were feasible for others to do the same as a best
      > practice, if their AP link is not too congested.  I find some ISP's have
      > transit from a US ISP/telco and an AP telco, but do AS-path
      > prepends on the
      > peering with the telco such that it is used as a backup route.
      > Could they make an exception (local preference) and use the AP telco for
      > connecting to other AP AS's/networks that are directly reachable?
      > --
      > - all about Internet and ISP's in the
      > Philippines
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