Re: [c-nsp] ISP Dual AS

ov...@swan.sk>Sänt av: cisco-nsp-boun...@puck.nether.netDatum: 2012-12-06 15:21Ärende: Re: [c-nsp] ISP Dual ASHi Mert,AFAIK Tier1 ISPs are using backbone designs with several ASNs mainly fortheir routing architecture scalability, as well as stability purposes. They also tend to use separate AS

[c-nsp] ISP Dual AS

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

Re: [c-nsp] ISP Dual AS

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 MA and

Re: [c-nsp] ISP Dual AS

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 thesoulforged...@hotmail.com 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

Re: [c-nsp] ISP Dual AS

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

Re: [c-nsp] ISP Dual AS

be 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

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

Re: [c-nsp] ISP Dual AS

: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp-boun...@puck.nether.net] On Behalf Of mert ozkul Sent: 06 December 2012 12:55 To: cisco-nsp@puck.nether.net Subject: [c-nsp] ISP Dual AS Hi All, I have query about ISP Design. Why some ISP`s (Ex: BT) using dual AS`es on their network? What

Re: [c-nsp] ISP Dual AS

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

Re: [c-nsp] ISP Dual AS

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

Re: [c-nsp] ISP Dual AS

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