On Thu, May 5, 2011 at 1:24 PM, wrote:
> On Thu, May 05, 2011 at 09:36:50AM -0500, Yaoqing(Joey) Liu wrote:
>> On Thu, May 5, 2011 at 3:54 AM, Joe Abley wrote:
>> >
>> > On 2011-05-05, at 11:46, bmann...@vacation.karoshi.com wrote:
>> >
>> >> O
On Thu, May 5, 2011 at 8:10 AM, John Kristoff wrote:
> On Thu, 5 May 2011 11:54:17 +0300
> Joe Abley wrote:
>
>> Perhaps I'm misunderstanding the original question, but the assertion
>> that anybody is hijacking that particular prefix seems false.
>
> Furthermore, that exchange prefixes may often
On Thu, May 5, 2011 at 2:35 AM, Bill Woodcock wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
>
> On May 4, 2011, at 8:23 PM, Yaoqing(Joey) Liu wrote:
>
>> Hi NANOG,
>>
>> I manually extracted the origins and their org info for the announced
>
On Thu, May 5, 2011 at 3:54 AM, Joe Abley wrote:
>
> On 2011-05-05, at 11:46, bmann...@vacation.karoshi.com wrote:
>
>> On Wed, May 04, 2011 at 10:23:12PM -0500, Yaoqing(Joey) Liu wrote:
>>> 198.32.64.0/24
>>> AS4555:ASName: EP0-BLK-ASNBLOCK-5;OrgName:Almon
tong
Telecommunication Corporation|descr:Beijing branch IDC
network|country:CN
AS38356:as-name:CRNET_BJ_IDC-CNNIC-AP|descr:China Tietong
Telecommunication Corporation|descr:Beijing branch IDC
network|country:CN:
Yaoqing
On Wed, May 4, 2011 at 3:20 PM, Yaoqing(Joey) Liu wrote:
>
>
> On Wed, May 4, 20
On Wed, May 4, 2011 at 3:15 PM, Joe Abley wrote:
>
> On 2011-05-04, at 23:11, Yaoqing(Joey) Liu wrote:
>
> > Thanks for clarifying this, actually I have a few more blocks with four
> origin ASNs that I'm not positive if they are anycast prefixes. Please help
> disti
ow wrote:
> > On Mon, May 2, 2011 at 3:35 PM, Joe Abley wrote:
> > >
> > > On 2011-05-02, at 21:16, Yaoqing(Joey) Liu wrote:
> > >
> > >> I found the following prefixes are often originated by many ASNs more
> than
> > >> five,
Hi all,
I found the following prefixes are often originated by many ASNs more than
five, wonder if they provide global anycast service, if so what specific
service they provide?
12.64.255.0/24
70.37.135.0/24
198.32.176.0/24
199.7.49.0/24
199.7.80.0/24
199.16.93.0/24
199.16.94.0/24
199.16.95.0/24
Hi NANOG list,
I am wondering if anyone can give me possible reasons for some uncommon BGP
origin change activity. What we see is that sometimes the origin for a
prefix seems to change from a customer AS to it upstream provider and back.
In many instances the prefix simply switches back and fort
On Mon, Mar 7, 2011 at 9:17 PM, Randy Bush wrote:
> > Good point. That's why I need to have a complete cause list first,
> > then I can try to tell the evil from the good.
>
> there is no complete cause list
>
I admit it's basically impossible to get a complete list, but at least, I
want to have
>
> Message: 9
> Date: Mon, 7 Mar 2011 11:32:39 -0600
> From: "Yaoqing(Joey) Liu"
> Subject: About the different causes of multiple origin ASN(MOAS)
>problem
> To: nanog@nanog.org
> Message-ID:
>
> Content-Type: text/plain; charset=ISO-8
Hi,
I'm trying to find all causes of multiple origin AS problem(MOAS) as
follows, but not sure if it's complete. Also please let me know how popular
each item is, especially item 3 and 4 that I'm very curious about.
1. Internet Exchange Points, we have observed a list of this prefixes,
although t
On Thu, Feb 17, 2011 at 8:17 PM, Michael K. Smith - Adhost <
mksm...@adhost.com> wrote:
> > -Original Message-
> > From: Yaoqing(Joey) Liu [mailto:joey.li...@gmail.com]
> > Sent: Thursday, February 17, 2011 6:03 PM
> > To: nanog@nanog.org
> >
I'm doing some research on multiple origin AS problems of IXPs. As I know,
generally there are two types of IXPs
type 1: use exchange routers, which works in layer 3
type 2: use switches and Ethernet topology, which works in layer 2.
So I have a couple of qustions:
1. For type 1, the exchange route
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