nanog mailing list archives

Re: Level3 / Cogent / NetFlix BGP Assistance


From: "Kaiser, Erich" <erich () gotfusion net>
Date: Sun, 4 Dec 2016 11:30:26 -0600

Sam I just sent you an email offlist.

a public ix port could be an option.

Erich Kaiser
The Fusion Network
erich () gotfusion net
Office: 630-621-4804
Cell: 630-777-9291



On Sun, Dec 4, 2016 at 11:25 AM, Faisal Imtiaz <faisal () snappytelecom net>
wrote:

Have you considered connecting to the nearest peering exchange ? where you
can potentially off-load all of this traffic from your paid IP Transit ?

Faisal Imtiaz
Snappy Internet & Telecom

----- Original Message -----
From: "Sam Norris" <Sam () SanDiegoBroadband com>
To: "nanog list" <nanog () nanog org>
Sent: Sunday, December 4, 2016 12:14:57 PM
Subject: Level3 / Cogent / NetFlix BGP Assistance

Hey all,



In early October our traffic levels from NetFlix went from about half
Level3 and
half Cogent - pretty well balanced - to all on Level3.  Standard
multihomed BGP
setup with minimal TE if I can help it.  I am starting to run into
problems with
a full gigabit port on Level3 and only 100-200mbps on Cogent at that
colo.  I
tried padding, I even tried 65000:2906 bgp community, but it seems like
if our
level3 port is up NetFlix chooses it solely.  How can I load balance
NetFlix
traffic across my two ports so that I am not paying for overages and/or
forced
to up to a 10G port immediately?  I have 3 other providers at that colo
and
cannot find any mix of bgp tricks to get some of it thru our other
providers.



I notice AS2906 has a localpref of 86 - odd ...



The 108.175.47.0/24 block seems to be using as 2906 so I thought a
65000:2906
wouldn't announce those prefixes to them at all.  I have about 10
prefixes being
announced so I could implement a no-export on some of them to load
balance but
that doesn't work.



Thx,

Sam





BGP routing table entry for 108.175.47.0/24



Paths: (2 available, best #1)

 2906

 AS-path translation: { 108.175.47.0/24 }

  ear3.LosAngeles1 (metric 100000)

   Origin IGP, metric 30334, localpref 86, valid, internal, best

   Community: 2906:51081 North_America Lclprf_86 United_States
Level3_Peer
Los_Angeles Level3:10984

   Originator: ear3.LosAngeles1

 2906

 AS-path translation: { 108.175.47.0/24 }

  ear3.LosAngeles1 (metric 100000)

   Origin IGP, metric 30334, localpref 86, valid, internal

   Community: 2906:51081 North_America Lclprf_86 United_States
Level3_Peer
Los_Angeles Level3:10984

    Originator: ear3.LosAngeles1



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