Re: BGP Community Support WAS: Re: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet
Knowing the relationship between my provider and whomever they are learning the route from is handy. It allows me to do things such as filter on those communities for passing prefixes down into less capable hardware. I may elect to pass customer or customer and peering routes from a given provider down into routers throughout my network with limited FIB capability. They can decide which way to send traffic that should be immediately apparent where the best path is, while leaving the provider edge routers to decide for prefixes beyond that. Say a CCR or a switch with some layer 3 capabilities. Then obviously things like blackhole and (local_pref, prepend, no export, etc. per AS). The above I'd say is rather important. The next step would be location-aware stuff in the presentation that would be nice to have. If your provider is having an issue with an upstream or peer in a given city\region, being able to avoid that would be nice. Of course that assumes you figure out their problem and the work-around before they're able to fix it themselves. Well, assuming it's a short-term issue, anyway. If it's a constant issue, your provider isn't likely to fix it faster than you because they're not fixing it at all. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com - Original Message - From: "James Breeden" To: "NANOG list" Sent: Tuesday, January 23, 2018 1:17:45 PM Subject: Re: BGP Community Support WAS: Re: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet I've seen the onestep list but the presentation is helpful. I guess my question was moreso to the people side of communities vs the technicalities of communities - what ones do people find themselves using most often and what do they wish was available from providers that really isn't otherwise out there? James W. Breeden Managing Partner [logo_transparent_background] Arenal Group: Arenal Consulting Group | Acilis Telecom | Pines Media PO Box 1063 | Smithville, TX 78957 Email: ja...@arenalgroup.co<mailto:ja...@arenalgroup.co> | office 512.360. | cell 512.304.0745 | www.arenalgroup.co<http://www.arenalgroup.co/> From: christopher.mor...@gmail.com on behalf of Christopher Morrow Sent: Tuesday, January 23, 2018 1:07:29 PM To: Mike Hammett Cc: James Breeden; NANOG list Subject: Re: BGP Community Support WAS: Re: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet On Tue, Jan 23, 2018 at 1:40 PM, Mike Hammett mailto:na...@ics-il.net>> wrote: These? :-) https://www.nanog.org/meetings/nanog40/presentations/BGPcommunities.pdf you could also probably get some good examples cribbed from the collection: https://onestep.net/communities/
Re: BGP Community Support WAS: Re: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet
+1 on BFD ... On 1/23/18 3:35 PM, Dan White wrote: On 01/23/18 19:17 +, James Breeden wrote: I've seen the onestep list but the presentation is helpful. I guess my question was moreso to the people side of communities vs the technicalities of communities - what ones do people find themselves using most often and what do they wish was available from providers that really isn't otherwise out there? The most useful to me: Blackhole this prefix Only advertise this prefix to your customers Prepend my/your ASN to this prefix X number of times Do not readvertise this prefix to any content caches you host and I'd like to see more transits offer BFD.
Re: BGP Community Support WAS: Re: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet
On 01/23/18 19:17 +, James Breeden wrote: I've seen the onestep list but the presentation is helpful. I guess my question was moreso to the people side of communities vs the technicalities of communities - what ones do people find themselves using most often and what do they wish was available from providers that really isn't otherwise out there? The most useful to me: Blackhole this prefix Only advertise this prefix to your customers Prepend my/your ASN to this prefix X number of times Do not readvertise this prefix to any content caches you host and I'd like to see more transits offer BFD. -- Dan White
Re: BGP Community Support WAS: Re: Cogent vs. HE ; -) WAS: Anyone using Cogent Ethernet
BGP communities I use the most: - Influence the transit provider BGP local-preference: customer preferred, customer backup, peer, and transit LP values - Only advertise routes to the transit provider customers and not their peers - Don't advertise routes to transit providers' peer ASx. - AS-prepend X times to transit providers' peer ASx. I've had a couple of situations where a CDN provider is sending all their traffic via one transit provider. A BGP community to not advertise or as-prepend our routes to that CDN provider would have been handy. Most transit providers only allow you to not advertise or as-prepend to their peers and not other customers. On Tue, Jan 23, 2018, at 12:17 PM, James Breeden wrote: > I've seen the onestep list but the presentation is helpful. I guess my > question was moreso to the people side of communities vs the > technicalities of communities - what ones do people find themselves > using most often and what do they wish was available from providers that > really isn't otherwise out there? >
Re: BGP Community Support WAS: Re: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet
I've seen the onestep list but the presentation is helpful. I guess my question was moreso to the people side of communities vs the technicalities of communities - what ones do people find themselves using most often and what do they wish was available from providers that really isn't otherwise out there? James W. Breeden Managing Partner [logo_transparent_background] Arenal Group: Arenal Consulting Group | Acilis Telecom | Pines Media PO Box 1063 | Smithville, TX 78957 Email: ja...@arenalgroup.co<mailto:ja...@arenalgroup.co> | office 512.360. | cell 512.304.0745 | www.arenalgroup.co<http://www.arenalgroup.co/> From: christopher.mor...@gmail.com on behalf of Christopher Morrow Sent: Tuesday, January 23, 2018 1:07:29 PM To: Mike Hammett Cc: James Breeden; NANOG list Subject: Re: BGP Community Support WAS: Re: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet On Tue, Jan 23, 2018 at 1:40 PM, Mike Hammett mailto:na...@ics-il.net>> wrote: These? :-) https://www.nanog.org/meetings/nanog40/presentations/BGPcommunities.pdf you could also probably get some good examples cribbed from the collection: https://onestep.net/communities/
Re: BGP Community Support WAS: Re: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet
On Tue, Jan 23, 2018 at 1:40 PM, Mike Hammett wrote: > These? :-) > > https://www.nanog.org/meetings/nanog40/presentations/BGPcommunities.pdf > > you could also probably get some good examples cribbed from the collection: https://onestep.net/communities/
Re: BGP Community Support WAS: Re: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet
These? :-) https://www.nanog.org/meetings/nanog40/presentations/BGPcommunities.pdf - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com - Original Message - From: "James Breeden" To: "Mike Hammett" Cc: "NANOG list" Sent: Tuesday, January 23, 2018 12:38:36 PM Subject: BGP Community Support WAS: Re: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet While we're on the topic of BGP community support, I'd be interested in the greater group's favorites, pros, and cons of what you want to see in a BGP community support table/system from a provider. Taking notes for a customer.. James W. Breeden Managing Partner logo_transparent_background Arenal Group: Arenal Consulting Group | Acilis Telecom | Pines Media PO Box 1063 | Smithville, TX 78957 Email: ja...@arenalgroup.co | office 512.360. | cell 512.304.0745 | www.arenalgroup.co From: NANOG on behalf of Mike Hammett Sent: Tuesday, January 23, 2018 8:12 AM Cc: NANOG list Subject: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet If only they had decent BGP community support. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com - Original Message - From: "Martin List-Petersen" To: "Michael Crapse" Cc: "Mike Hammett" , "NANOG list" Sent: Monday, January 22, 2018 8:24:46 PM Subject: Re: Anyone using Cogent Ethernet On 23/01/18 02:12, Michael Crapse wrote: > Tier 1 just means they don't pay for ip transit themselves, only Peering. > Doesn't mean that it's good transit. > Best provider i've ever used is hurricane electric, actually a tier 2 > provider, but bigger/better than many tier 1s. I'd still categorise Hurricane a lot better than Cogent. Both quality and customer service wise. /M > On 22 January 2018 at 19:07, Martin List-Petersen wrote: > >> On 22/01/18 20:05, Mike Hammett wrote: >> >>> I much prefer using WDM transport as opposed to Ethernet\VPLS transport >>> due to it being significantly harder (I try not to say impossible) to >>> oversubscribe. That said, it isn't always available at a decent rate at a >>> given location. >>> >>> Cogent has a reputation (right or wrong) for running things a little hot. >>> >>> Have any of you used Cogent Ethernet\VPLS services? What are you >>> experiences? Offlist is fine if you don't want it public. >>> >> >> Never use them without a backup alternative. I've seen more outages, that >> one would want to ever see from a provider, that would like to be >> categorised as Tier1. >> >> Especially, when some of these are longer than expected, because there >> were no cold-spares in the country and the cold-spare needed missed the >> flight. >> >> /M >> -- >> Airwire Ltd. - Ag Nascadh Pobail an Iarthair >> http://www.airwire.ie >> Phone: 091-395 000 >> Registered Office: Moy, Kinvara, Co. Galway, 091-395 000 - Registered in >> Ireland No. 508961 >> > -- Airwire Ltd. - Ag Nascadh Pobail an Iarthair http://www.airwire.ie Phone: 091-395 000 Registered Office: Moy, Kinvara, Co. Galway, 091-395 000 - Registered in Ireland No. 508961
BGP Community Support WAS: Re: Cogent vs. HE ; -) WAS: Anyone using Cogent Ethernet
While we're on the topic of BGP community support, I'd be interested in the greater group's favorites, pros, and cons of what you want to see in a BGP community support table/system from a provider. Taking notes for a customer.. James W. Breeden Managing Partner [logo_transparent_background] Arenal Group: Arenal Consulting Group | Acilis Telecom | Pines Media PO Box 1063 | Smithville, TX 78957 Email: ja...@arenalgroup.co<mailto:ja...@arenalgroup.co> | office 512.360. | cell 512.304.0745 | www.arenalgroup.co<http://www.arenalgroup.co/> From: NANOG on behalf of Mike Hammett Sent: Tuesday, January 23, 2018 8:12 AM Cc: NANOG list Subject: Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet If only they had decent BGP community support. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com - Original Message - From: "Martin List-Petersen" To: "Michael Crapse" Cc: "Mike Hammett" , "NANOG list" Sent: Monday, January 22, 2018 8:24:46 PM Subject: Re: Anyone using Cogent Ethernet On 23/01/18 02:12, Michael Crapse wrote: > Tier 1 just means they don't pay for ip transit themselves, only Peering. > Doesn't mean that it's good transit. > Best provider i've ever used is hurricane electric, actually a tier 2 > provider, but bigger/better than many tier 1s. I'd still categorise Hurricane a lot better than Cogent. Both quality and customer service wise. /M > On 22 January 2018 at 19:07, Martin List-Petersen wrote: > >> On 22/01/18 20:05, Mike Hammett wrote: >> >>> I much prefer using WDM transport as opposed to Ethernet\VPLS transport >>> due to it being significantly harder (I try not to say impossible) to >>> oversubscribe. That said, it isn't always available at a decent rate at a >>> given location. >>> >>> Cogent has a reputation (right or wrong) for running things a little hot. >>> >>> Have any of you used Cogent Ethernet\VPLS services? What are you >>> experiences? Offlist is fine if you don't want it public. >>> >> >> Never use them without a backup alternative. I've seen more outages, that >> one would want to ever see from a provider, that would like to be >> categorised as Tier1. >> >> Especially, when some of these are longer than expected, because there >> were no cold-spares in the country and the cold-spare needed missed the >> flight. >> >> /M >> -- >> Airwire Ltd. - Ag Nascadh Pobail an Iarthair >> http://www.airwire.ie >> Phone: 091-395 000 >> Registered Office: Moy, Kinvara, Co. Galway, 091-395 000 - Registered in >> Ireland No. 508961 >> > -- Airwire Ltd. - Ag Nascadh Pobail an Iarthair http://www.airwire.ie Phone: 091-395 000 Registered Office: Moy, Kinvara, Co. Galway, 091-395 000 - Registered in Ireland No. 508961
Cogent vs. HE ;-) WAS: Anyone using Cogent Ethernet
If only they had decent BGP community support. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com - Original Message - From: "Martin List-Petersen" To: "Michael Crapse" Cc: "Mike Hammett" , "NANOG list" Sent: Monday, January 22, 2018 8:24:46 PM Subject: Re: Anyone using Cogent Ethernet On 23/01/18 02:12, Michael Crapse wrote: > Tier 1 just means they don't pay for ip transit themselves, only Peering. > Doesn't mean that it's good transit. > Best provider i've ever used is hurricane electric, actually a tier 2 > provider, but bigger/better than many tier 1s. I'd still categorise Hurricane a lot better than Cogent. Both quality and customer service wise. /M > On 22 January 2018 at 19:07, Martin List-Petersen wrote: > >> On 22/01/18 20:05, Mike Hammett wrote: >> >>> I much prefer using WDM transport as opposed to Ethernet\VPLS transport >>> due to it being significantly harder (I try not to say impossible) to >>> oversubscribe. That said, it isn't always available at a decent rate at a >>> given location. >>> >>> Cogent has a reputation (right or wrong) for running things a little hot. >>> >>> Have any of you used Cogent Ethernet\VPLS services? What are you >>> experiences? Offlist is fine if you don't want it public. >>> >> >> Never use them without a backup alternative. I've seen more outages, that >> one would want to ever see from a provider, that would like to be >> categorised as Tier1. >> >> Especially, when some of these are longer than expected, because there >> were no cold-spares in the country and the cold-spare needed missed the >> flight. >> >> /M >> -- >> Airwire Ltd. - Ag Nascadh Pobail an Iarthair >> http://www.airwire.ie >> Phone: 091-395 000 >> Registered Office: Moy, Kinvara, Co. Galway, 091-395 000 - Registered in >> Ireland No. 508961 >> > -- Airwire Ltd. - Ag Nascadh Pobail an Iarthair http://www.airwire.ie Phone: 091-395 000 Registered Office: Moy, Kinvara, Co. Galway, 091-395 000 - Registered in Ireland No. 508961
Re: Anyone using Cogent Ethernet
On 23/01/18 02:12, Michael Crapse wrote: Tier 1 just means they don't pay for ip transit themselves, only Peering. Doesn't mean that it's good transit. Best provider i've ever used is hurricane electric, actually a tier 2 provider, but bigger/better than many tier 1s. I'd still categorise Hurricane a lot better than Cogent. Both quality and customer service wise. /M On 22 January 2018 at 19:07, Martin List-Petersen wrote: On 22/01/18 20:05, Mike Hammett wrote: I much prefer using WDM transport as opposed to Ethernet\VPLS transport due to it being significantly harder (I try not to say impossible) to oversubscribe. That said, it isn't always available at a decent rate at a given location. Cogent has a reputation (right or wrong) for running things a little hot. Have any of you used Cogent Ethernet\VPLS services? What are you experiences? Offlist is fine if you don't want it public. Never use them without a backup alternative. I've seen more outages, that one would want to ever see from a provider, that would like to be categorised as Tier1. Especially, when some of these are longer than expected, because there were no cold-spares in the country and the cold-spare needed missed the flight. /M -- Airwire Ltd. - Ag Nascadh Pobail an Iarthair http://www.airwire.ie Phone: 091-395 000 Registered Office: Moy, Kinvara, Co. Galway, 091-395 000 - Registered in Ireland No. 508961 -- Airwire Ltd. - Ag Nascadh Pobail an Iarthair http://www.airwire.ie Phone: 091-395 000 Registered Office: Moy, Kinvara, Co. Galway, 091-395 000 - Registered in Ireland No. 508961
Re: Anyone using Cogent Ethernet
Tier 1 just means they don't pay for ip transit themselves, only Peering. Doesn't mean that it's good transit. Best provider i've ever used is hurricane electric, actually a tier 2 provider, but bigger/better than many tier 1s. On 22 January 2018 at 19:07, Martin List-Petersen wrote: > On 22/01/18 20:05, Mike Hammett wrote: > >> I much prefer using WDM transport as opposed to Ethernet\VPLS transport >> due to it being significantly harder (I try not to say impossible) to >> oversubscribe. That said, it isn't always available at a decent rate at a >> given location. >> >> Cogent has a reputation (right or wrong) for running things a little hot. >> >> Have any of you used Cogent Ethernet\VPLS services? What are you >> experiences? Offlist is fine if you don't want it public. >> > > Never use them without a backup alternative. I've seen more outages, that > one would want to ever see from a provider, that would like to be > categorised as Tier1. > > Especially, when some of these are longer than expected, because there > were no cold-spares in the country and the cold-spare needed missed the > flight. > > /M > -- > Airwire Ltd. - Ag Nascadh Pobail an Iarthair > http://www.airwire.ie > Phone: 091-395 000 > Registered Office: Moy, Kinvara, Co. Galway, 091-395 000 - Registered in > Ireland No. 508961 >
Re: Anyone using Cogent Ethernet
On 22/01/18 20:05, Mike Hammett wrote: I much prefer using WDM transport as opposed to Ethernet\VPLS transport due to it being significantly harder (I try not to say impossible) to oversubscribe. That said, it isn't always available at a decent rate at a given location. Cogent has a reputation (right or wrong) for running things a little hot. Have any of you used Cogent Ethernet\VPLS services? What are you experiences? Offlist is fine if you don't want it public. Never use them without a backup alternative. I've seen more outages, that one would want to ever see from a provider, that would like to be categorised as Tier1. Especially, when some of these are longer than expected, because there were no cold-spares in the country and the cold-spare needed missed the flight. /M -- Airwire Ltd. - Ag Nascadh Pobail an Iarthair http://www.airwire.ie Phone: 091-395 000 Registered Office: Moy, Kinvara, Co. Galway, 091-395 000 - Registered in Ireland No. 508961
Anyone using Cogent Ethernet
I much prefer using WDM transport as opposed to Ethernet\VPLS transport due to it being significantly harder (I try not to say impossible) to oversubscribe. That said, it isn't always available at a decent rate at a given location. Cogent has a reputation (right or wrong) for running things a little hot. Have any of you used Cogent Ethernet\VPLS services? What are you experiences? Offlist is fine if you don't want it public. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest-IX http://www.midwest-ix.com
