Re: [swinog] routing protocols between isp and customer?
sure, they announce a part of your PA superblock, and you route it in internal BGP, and just make sure you don't announce longer prefixes to the outside world. And this community concept is actually helping to do this in an efficient manner. Pretty much everyone is doing that. - Original Message - > From: Roman Hochuli > To: swinog@lists.swinog.ch > Cc: > Sent: Friday, November 2, 2012 11:41 AM > Subject: Re: [swinog] routing protocols between isp and customer? > > Hello Stan > >> I would propose BGP on CE-PE link, with some BGP community policy. > > As far as I understand this document is talking about bgp-setups as a > whole. I would be more interested to hear if they would break out a > subnet out of their PA-allocation and accept that back over routing protocol of choice here> from their customer. > > -- > Best regards, > Roman Hochuli > Operations Manager > > nexellent ag > Saegereistrasse 33 > CH-8152 Glattbrugg > > Phone: +41 44 872 20 00 > Fax: +41 44 872 20 01 > URL: www.nexellent.ch > X-NCC-RegID: ch.nexellent > > Imagination is the one weapon in the war > against reality. > -- Jules de Gaultier > > > ___ > swinog mailing list > swinog@lists.swinog.ch > http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog > ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] routing protocols between isp and customer?
Hi Roman, I cannot speak for others but I would imagine that any ISPs should be willing to run such setups, at least I can confirm in the ISP where I work we do this all the time, for both PA and PI. Regards, Fadi On Fri, Nov 2, 2012 at 11:44 AM, Roman Hochuli wrote: > Hello Fadi > > Thank you for your reply. > > > Most ISPs would use BGP and typically it would look like this: > > That's basically the setup I described. Still remaining my question: > which ISPs run setups like that in CH? > > -- > Best regards, > Roman Hochuli > Operations Manager > > nexellent ag > Saegereistrasse 33 > CH-8152 Glattbrugg > > Phone: +41 44 872 20 00 > Fax: +41 44 872 20 01 > URL: www.nexellent.ch > X-NCC-RegID: ch.nexellent > > Imagination is the one weapon in the war > against reality. > -- Jules de Gaultier > ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] routing protocols between isp and customer?
On 2012-11-02 11:41, Roman Hochuli wrote: > Hello Stan > >> I would propose BGP on CE-PE link, with some BGP community policy. > > As far as I understand this document is talking about bgp-setups as a > whole. I would be more interested to hear if they would break out a > subnet out of their PA-allocation and accept that back over routing protocol of choice here> from their customer. I've seen that kind of setup (give a chunk of PA to customer, let customer announce it to the ISP in question so that customer can be multihomed)) in various places. The choice of routing protocol just depends on what devices are connected to either side. The preference for it then typically is OSPF, BGP and last RIP and friends. Greets, Jeroen ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] routing protocols between isp and customer?
Hello Fadi Thank you for your reply. > Most ISPs would use BGP and typically it would look like this: That's basically the setup I described. Still remaining my question: which ISPs run setups like that in CH? -- Best regards, Roman Hochuli Operations Manager nexellent ag Saegereistrasse 33 CH-8152 Glattbrugg Phone: +41 44 872 20 00 Fax: +41 44 872 20 01 URL: www.nexellent.ch X-NCC-RegID: ch.nexellent Imagination is the one weapon in the war against reality. -- Jules de Gaultier ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] routing protocols between isp and customer?
Hello Stan > I would propose BGP on CE-PE link, with some BGP community policy. As far as I understand this document is talking about bgp-setups as a whole. I would be more interested to hear if they would break out a subnet out of their PA-allocation and accept that back over from their customer. -- Best regards, Roman Hochuli Operations Manager nexellent ag Saegereistrasse 33 CH-8152 Glattbrugg Phone: +41 44 872 20 00 Fax: +41 44 872 20 01 URL: www.nexellent.ch X-NCC-RegID: ch.nexellent Imagination is the one weapon in the war against reality. -- Jules de Gaultier ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] routing protocols between isp and customer?
Hi Roman, Most ISPs would use BGP and typically it would look like this: ISP-iBGP_AS100-ISP | | | | eBGP eBGP | | | | CSR--iBGP_AS65532--CSR Regards, Fadi On Fri, Nov 2, 2012 at 9:56 AM, Roman Hochuli wrote: > Hey All > > Quick question: do you allow/run routing protocols between your (isp-) > network and your customer? > If so: which protocols? > If not: what reasons do you tell the customer? > > > In particular I am interested to know about setups when they want to > announce the prefix/subnet you assigned them from your PA-space back to > you because they want to run redundant routers. > > The setup would probably look like this: > >Customer Subnet 10.0.0.0/27 > / \ > | | > [customer router a] - - [customer router b] > | | > > | | > [isp router a] - - [isp router b] > | | > \ / > ISP Network 10.0.0.0/8 > > -- > Best regards, > Roman Hochuli > Operations Manager > > nexellent ag > Saegereistrasse 33 > CH-8152 Glattbrugg > > Phone: +41 44 872 20 00 > Fax: +41 44 872 20 01 > URL: www.nexellent.ch > X-NCC-RegID: ch.nexellent > > Imagination is the one weapon in the war > against reality. > -- Jules de Gaultier > > > ___ > swinog mailing list > swinog@lists.swinog.ch > http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog > ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Re: [swinog] routing protocols between isp and customer?
hi Roman, I would propose BGP on CE-PE link, with some BGP community policy. Then the customer would send you community strings which govern local preference and announcements of those prefixes. I made several such policy implementations based on Easynet BGP policy: http://lg.easynet.net/bgppolicy.php This is a very detailed document, and it covers all possible needs for an SP. Typically you only need to implement a part of it. cheers, stan - Original Message - > From: Roman Hochuli > To: "swi...@swinog.ch" > Cc: > Sent: Friday, November 2, 2012 9:56 AM > Subject: [swinog] routing protocols between isp and customer? > > Hey All > > Quick question: do you allow/run routing protocols between your (isp-) > network and your customer? > If so: which protocols? > If not: what reasons do you tell the customer? > > > In particular I am interested to know about setups when they want to > announce the prefix/subnet you assigned them from your PA-space back to > you because they want to run redundant routers. > > The setup would probably look like this: > > Customer Subnet 10.0.0.0/27 > / \ > | | > [customer router a] - - [customer router b] > | | > > | | > [isp router a] - - [isp router b] > | | > \ / > ISP Network 10.0.0.0/8 > > -- > Best regards, > Roman Hochuli > Operations Manager > > nexellent ag > Saegereistrasse 33 > CH-8152 Glattbrugg > > Phone: +41 44 872 20 00 > Fax: +41 44 872 20 01 > URL: www.nexellent.ch > X-NCC-RegID: ch.nexellent > > Imagination is the one weapon in the war > against reality. > -- Jules de Gaultier > > > ___ > swinog mailing list > swinog@lists.swinog.ch > http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog > ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
[swinog] routing protocols between isp and customer?
Hey All Quick question: do you allow/run routing protocols between your (isp-) network and your customer? If so: which protocols? If not: what reasons do you tell the customer? In particular I am interested to know about setups when they want to announce the prefix/subnet you assigned them from your PA-space back to you because they want to run redundant routers. The setup would probably look like this: Customer Subnet 10.0.0.0/27 / \ | | [customer router a] - - [customer router b] | | | | [isp router a] - - [isp router b] | | \ / ISP Network 10.0.0.0/8 -- Best regards, Roman Hochuli Operations Manager nexellent ag Saegereistrasse 33 CH-8152 Glattbrugg Phone: +41 44 872 20 00 Fax: +41 44 872 20 01 URL: www.nexellent.ch X-NCC-RegID: ch.nexellent Imagination is the one weapon in the war against reality. -- Jules de Gaultier ___ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
