Re: Router only speaks IGP in BGP network
On Friday, December 24, 2010 07:26:43 am Randy Bush wrote: > and do NOT redistribute bgp into ospf. This is good truth. Don't redistribute your BGP into the IGP (or vice versa). I'm not even sure OSPF would handle it in this day - but you don't want to find out. Mark. signature.asc Description: This is a digitally signed message part.
Re: Router only speaks IGP in BGP network
On 12/25/2010 3:36 AM, Mark Tinka wrote: On Friday, December 24, 2010 07:26:43 am Randy Bush wrote: and do NOT redistribute bgp into ospf. This is good truth. Don't redistribute your BGP into the IGP (or vice versa). I'm not even sure OSPF would handle it in this day - but you don't want to find out. Mark. If you're only redistributing 10 prefixes into OSPF? Problem?
Re: IPv6 BGP table size comparisons
On 12/24/2010 12:55 PM, Elliott, Andrew wrote: > -Original Message- > From: Seth Mattinen [mailto:se...@rollernet.us] > Sent: Thursday, December 23, 2010 8:37 PM > To: nanog@nanog.org > Subject: Re: IPv6 BGP table size comparisons > > On 12/21/10 2:18 PM, Frank Bulk wrote: >> There are 4,035 routes in the global IPv6 routing table. This is what one >> provider passed on to me for routes (/48 or larger prefixes), extracted from >> public route-view servers. >> AT&T AS7018: 2,851 (70.7%) >> Cogent AS174: 2,864 (71.0%) >> GLBX AS3549: 3,706 (91.8%) >> Hurricane Electric AS6939: 3,790 (93.9%) >> Qwest AS209: 3,918 (97.1%) >> TINET (formerly Tiscali) AS3257: 3,825 (94.8%) >> Verizon AS701: 3,938 (97.6%) > > > Sprint (AS1239) is sending 3,779 routes. > > XO Communications (AS2828) is sending 3973 prefixes. I had a quick look at the diff between routes given to me by AS174 and 6453 and other v6 peers and here is what I found based on missing /32s. (I excluded /48s for now) There are some 490 /32s missing from Cogent from my network in Toronto, Canada. The majority are paths via just 6939. Of those that are not just 6939, I see them via the following AS paths. 11647 6453 293 11647 6453 701 668 11647 6453 30071 13645 11647 13030 15716 11647 6453 5511 11647 6453 6830 11647 6453 25137 11647 6453 30071 2549 11647 6453 30071 10318 11647 6453 6762 7303 11647 6453 30071 11647 6453 6762 8280 11647 6453 13030 11647 13030 11647 6453 701 11647 6453 6762 11647 6453 5511 8346 11647 6453 30071 11647 6453 13030 8271 11647 13030 8271 11647 6453 13030 33845 11647 6453 701 18061 9555 11647 6453 6762 7642 11647 6453 30071 6536 11647 6453 701 18750 11647 6453 30071 19151 11647 6453 701 26773 11647 6453 30071 10326 11647 6453 30071 19151 16842 11647 6453 30071 19151 31877 11647 6453 30071 19151 22911 11647 6453 30071 13911 11647 6453 30071 7786 11647 6453 30071 13911 14595 11647 6453 6762 7303 4270 11647 6453 6762 7303 4270 27770 11647 6453 6762 7303 4270 5692 11647 6453 13030 48218 11647 13030 48218 11647 6453 13030 20634 11647 13030 20634 11647 6453 701 12702 24807 11647 6453 6830 11647 6453 5511 8697 11647 6453 6762 31463 11647 13030 9191 11647 6453 13030 25164 11647 13030 25164 11647 6453 13030 16242 11647 13030 16242 11647 6453 13030 28717 11647 6453 13030 25563 11647 13030 25563 11647 6453 5511 3215 11647 6453 5511 3215 11647 6453 5511 3215 11647 6453 5511 12493 11647 6453 13030 44573 11647 6453 13030 35366 11647 6453 13030 29430 11647 13030 29430 11647 6453 13030 21232 11647 13030 21232 11647 6453 13030 47617 11647 13030 47617 11647 6453 6830 20825 11647 6453 6762 8953 11647 6453 13030 15216 11647 13030 15216 11647 6453 13030 11647 13030 e.g. 2607:f078::/32 11647 6453 701 18750 11647 6939 18750 and 2a01:c910::/32 11647 6453 5511 3215 11647 6939 5511 3215
Re: Hotel Internet?
On Fri, Dec 24, 2010 at 11:35 PM, Ryan Finnesey wrote: > Is anyone within the group providing Internet access to Hotels? It > seems most of this market is controlled by Lodge Net. > We're running the wifi at our hotels on our own. We use wifidog for the software (with radius hooked into our reservation system for auth). Some are using DSL to get APs into the rooms, newer properties have cat5 run throughout.
Re: Router only speaks IGP in BGP network
On 12/25/2010 3:36 AM, Mark Tinka wrote: > On Friday, December 24, 2010 07:26:43 am Randy Bush wrote: >> and do NOT redistribute bgp into ospf. > > This is good truth. Don't redistribute your BGP into the IGP > (or vice versa). I'm not even sure OSPF would handle it in > this day - but you don't want to find out. Oh please. OSPF loves it when you shove a few 100k routes into it. -- Jeremy L. Gaddis
Re: Router only speaks IGP in BGP network
On Sat, 25 Dec 2010 08:52:42 -0500 ML wrote: > On 12/25/2010 3:36 AM, Mark Tinka wrote: > > On Friday, December 24, 2010 07:26:43 am Randy Bush wrote: > > > >> and do NOT redistribute bgp into ospf. > > > > This is good truth. Don't redistribute your BGP into the IGP > > (or vice versa). I'm not even sure OSPF would handle it in > > this day - but you don't want to find out. > > > > Mark. > > > If you're only redistributing 10 prefixes into OSPF? Problem? > > > I've had to do it when transitioning between a legacy ISP routing domain and a "BGP for everything" model. The old routing domain had customer routes in both OSPF and BGP, while the new one used BGP for customer routes only. As I had to make the new network customer routes visible in the old network, and the legacy network didn't have a complete BGP mesh or RR setup (i.e. a broken BGP model), pushing routes from new BGP into old OSPF was the only choice. I liberally used the OSPF external route tag and BGP communities to classify routes and to control redistribution and avoid redistribution loops. So you can do it, as long as you're very careful, and make sure you keep reminding yourself that you're playing with a loaded gun with the safety off. Something definitely worth avoiding if you can. Regards, Mark.
RE: Hotel Internet?
Ethostream seems to have a good market share. That's what three hotels in our area are using for control. Frank -Original Message- From: Ryan Finnesey [mailto:ryan.finne...@harrierinvestments.com] Sent: Saturday, December 25, 2010 1:36 AM To: nanog@nanog.org Subject: Hotel Internet? Is anyone within the group providing Internet access to Hotels? It seems most of this market is controlled by Lodge Net. Cheers Ryan
Re: Good MPLS/VPLS book?
Looks like a third edition is on the way slated for March 2011 http://www.amazon.com/MPLS-Enabled-Applications-Developments-Technologies-Communications/dp/0470665459/ref=ntt_at_ep_dpt_2 I would expect it to cover MPLS-TP and the struggling evolution of PBB-TE ... anybody has any idea if this is in ? F. On 2010-12-24, at 7:47 AM, Mounir Mohamed wrote: > The most comprehensive text is MPLS Enabled Applications by Ina Minei > > http://www.amazon.com/MPLS-Enabled-Applications-Developments-Technologies-Communications/dp/0470986441/ref=sr_1_1?ie=UTF8&qid=1293194786&sr=8-1 > > > On Fri, Dec 24, 2010 at 12:49 AM, Michael Helmeste wrote: > >> Does anyone have a favorite book or resource discussing MPLS and all >> associated Lego blocks (e.g. LDP, TE, VPLS, martini, mBGP et. al.)? >> >> I understand the basics of what MPLS is and how you create a circuit from >> A to B but I'm afraid it still escapes me when trying to figure out how >> someone would, say, create a multicast capable VPN with 5 edge points. >> >> Any pointers to a good way to reduce my level of ignorance on this subject >> would be appreciated. Vendor literature doesn't bother me as long as the >> concepts are there. >> >> Regards, >> Michael H. >> >> >> > > > -- > Best Regards, > Mounir Mohamed, CCIE#19573 (R&S/SP) > Senior Network Engineer, Core Team. > NOOR Data Networks, SAE > Mobile# +2-010-2345-956 > http://mounirmohamed.wordpress.com > http://www.linkedin.com/in/mounirmohamed
Re: Good MPLS/VPLS book?
Amazon has detailed TOC and couple of chapters online so you should get all the info. MPLS-TP gets a decent coverage in this book. thanks, Shahid On Sat, Dec 25, 2010 at 5:42 PM, Francois Menard wrote: > Looks like a third edition is on the way slated for March 2011 > > > http://www.amazon.com/MPLS-Enabled-Applications-Developments-Technologies-Communications/dp/0470665459/ref=ntt_at_ep_dpt_2 > > I would expect it to cover MPLS-TP and the struggling evolution of PBB-TE > ... anybody has any idea if this is in ? > > F. > > On 2010-12-24, at 7:47 AM, Mounir Mohamed wrote: > > > The most comprehensive text is MPLS Enabled Applications by Ina Minei > > > > > http://www.amazon.com/MPLS-Enabled-Applications-Developments-Technologies-Communications/dp/0470986441/ref=sr_1_1?ie=UTF8&qid=1293194786&sr=8-1 > > > > > > On Fri, Dec 24, 2010 at 12:49 AM, Michael Helmeste > wrote: > > > >> Does anyone have a favorite book or resource discussing MPLS and all > >> associated Lego blocks (e.g. LDP, TE, VPLS, martini, mBGP et. al.)? > >> > >> I understand the basics of what MPLS is and how you create a circuit > from > >> A to B but I'm afraid it still escapes me when trying to figure out how > >> someone would, say, create a multicast capable VPN with 5 edge points. > >> > >> Any pointers to a good way to reduce my level of ignorance on this > subject > >> would be appreciated. Vendor literature doesn't bother me as long as the > >> concepts are there. > >> > >> Regards, > >> Michael H. > >> > >> > >> > > > > > > -- > > Best Regards, > > Mounir Mohamed, CCIE#19573 (R&S/SP) > > Senior Network Engineer, Core Team. > > NOOR Data Networks, SAE > > Mobile# +2-010-2345-956 > > http://mounirmohamed.wordpress.com > > http://www.linkedin.com/in/mounirmohamed > > >
