Re: [c-nsp] ISP Dual AS

2013-05-01 Thread Gustav . Ulander
Hello.We also run separate ASN. One for internet and one for VPN purposes. Gustav UhlanderCommunication & Infrastructure Engineer-cisco-nsp-boun...@puck.nether.net skrev: -Till: "'mert ozkul'" , Från: Adam Vitkovsky Sänt av: cisco-nsp-boun...@puck.nether.netDatum: 2012-12-06 15:21Ärende: Re

Re: [c-nsp] ISP Dual AS

2012-12-06 Thread Adam Vitkovsky
Hi Mert, AFAIK Tier1 ISPs are using backbone designs with several ASNs mainly for their routing architecture scalability, as well as stability purposes. They also tend to use separate ASNs for different services they offer (inet vs vpn) for manageability reasons In order to cope with network that

Re: [c-nsp] ISP Dual AS

2012-12-06 Thread Justin M. Streiner
On Thu, 6 Dec 2012, mert ozkul wrote: I have query about ISP Design. Why some ISP`s (Ex: BT) using dual AS`es on their network? What are the advantages of using more than one AS in the ISP network?What can be achieved if you use more than one AS? At my previous job, I ran a network that was c

Re: [c-nsp] ISP Dual AS

2012-12-06 Thread Andrey Petrenko
i operate network with some AS. one AS we use for transit traffic and connecting to the upstream, all another use for regional branch -- With best regards, Andrey 'sshd' Petrenko xmmp\gtalk: andy.petrenko at gmail.com skype: andy.petrenko web: http://sshd.by On 06.12.2012, at 15:21, Reuben Farrel

Re: [c-nsp] ISP Dual AS

2012-12-06 Thread William Jackson
Maybe a historic reason, merger that has not been fully integrated? Maybe not worth the hassle/interruption of doing the migration to a single AS. Separate realms of control/policy? William Jackson NGN Engineering Gibtelecom Email: william.jack...@gibtele.com -Original Message- From:

Re: [c-nsp] ISP Dual AS

2012-12-06 Thread mert ozkul
done with one AS as well. The only scenario comes to my mind (as some of you awared already) is the merging problems. I were searching just the other possible scenarios :) Thanks a lot for great ideas. BR,-Mert Date: Thu, 6 Dec 2012 20:10:36 +0800 Subject: Re: [c-nsp] ISP Dual AS From: jstuxuhu0

Re: [c-nsp] ISP Dual AS

2012-12-06 Thread Reuben Farrelly
On 6/12/2012 10:54 PM, mert ozkul wrote: Hi All, I have query about ISP Design. Why some ISP`s (Ex: BT) using dual AS`es on their network? What are the advantages of using more than one AS in the ISP network?What can be achieved if you use more than one AS? Thanks,Best Regards, -Mert I operate

Re: [c-nsp] ISP Dual AS

2012-12-06 Thread Ali Sumsam
Could be some business reasons. This network might have a history of integration. Two ISPs might have merged. Regards, *Ali Sumsam CCIE* *Network Engineer - Level 3* eintellego Pty Ltd a...@eintellego.net ; www.eintellego.net Phone: 1300 753 383 ; Fax: (+612) 8572 9954 Cell +61 (0)410 603 531 f

Re: [c-nsp] ISP Dual AS

2012-12-06 Thread Xu Hu
Maybe different as using for different functionality. Do u confirm two as numbers using for the same network. On Dec 6, 2012 7:58 PM, "mert ozkul" wrote: > Hi All, > I have query about ISP Design. > Why some ISP`s (Ex: BT) using dual AS`es on their network? > What are the advantages of using more

Re: [c-nsp] ISP Dual AS

2012-12-06 Thread Saku Ytti
On (2012-12-06 13:54 +0200), mert ozkul wrote: > I have query about ISP Design. > Why some ISP`s (Ex: BT) using dual AS`es on their network? > What are the advantages of using more than one AS in the ISP network?What can > be achieved if you use more than one AS? Most often it is result of M&A