[uknof] Openbgpd for BGP peering with LINX and media converter requirement
Hi, This is my first post as a community member ! I wish to use a Openbgpd using OpenBSD box to connect and peer with LINX members. I would like to know A) Has anyone in the UKNOF community heard of any other network operator working successfully with this setup? B) LINX provides connectivity using Single Mode Fiber in Telehouse North. I am looking to learn more about how to connect the Openbsd box Ethernet network to fiber network of LINX i.e. Media converter vs a managed switch. and what make and models will be best option ? I am looking for a cost effective and flexible solution either Media converter vs a managed switch. Thanks and Regards, Randhir
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
I use it for connecting to LONAP.. From: Randhir Prakash rand...@trijit.commailto:rand...@trijit.com Date: Tuesday, 25 March 2014 16:20 To: uknof@lists.uknof.org.ukmailto:uknof@lists.uknof.org.uk uknof@lists.uknof.org.ukmailto:uknof@lists.uknof.org.uk Subject: [uknof] Openbgpd for BGP peering with LINX and media converter requirement Hi, This is my first post as a community member ! I wish to use a Openbgpd using OpenBSD box to connect and peer with LINX members. I would like to know A) Has anyone in the UKNOF community heard of any other network operator working successfully with this setup? B) LINX provides connectivity using Single Mode Fiber in Telehouse North. I am looking to learn more about how to connect the Openbsd box Ethernet network to fiber network of LINX i.e. Media converter vs a managed switch. and what make and models will be best option ? I am looking for a cost effective and flexible solution either Media converter vs a managed switch. Thanks and Regards, Randhir
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 2014/03/25 21:50, Randhir Prakash wrote: Hi, This is my first post as a community member ! I wish to use a Openbgpd using OpenBSD box to connect and peer with LINX members. I would like to know A) Has anyone in the UKNOF community heard of any other network operator working successfully with this setup? B) LINX provides connectivity using Single Mode Fiber in Telehouse North. I am looking to learn more about how to connect the Openbsd box Ethernet network to fiber network of LINX i.e. Media converter vs a managed switch. and what make and models will be best option ? I am looking for a cost effective and flexible solution either Media converter vs a managed switch. Why not just use a fibre NIC directly?
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 25 March 2014 16:20, Randhir Prakash rand...@trijit.com wrote: Hi, This is my first post as a community member ! I wish to use a Openbgpd using OpenBSD box to connect and peer with LINX members. I would like to know A) Has anyone in the UKNOF community heard of any other network operator working successfully with this setup? B) LINX provides connectivity using Single Mode Fiber in Telehouse North. I am looking to learn more about how to connect the Openbsd box Ethernet network to fiber network of LINX i.e. Media converter vs a managed switch. and what make and models will be best option ? I am looking for a cost effective and flexible solution either Media converter vs a managed switch. Hello, I'd suggest looking at the managed switch, you will have better visibility of the link, speeds/duplex/DOM stats for the optics. With a media converter, unless its a managed one who knows whats going on. Be careful about connecting your switch to the exchange, I'd suggest reading this page on the LONAP site, http://www.lonap.net/config-hints.shtml Nat -- Nat https://noc.esgob.com
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 25/03/2014 16:20, Randhir Prakash rand...@trijit.commailto:rand...@trijit.com wrote: This is my first post as a community member ! I wish to use a Openbgpd using OpenBSD box to connect and peer with LINX members. I would like to know A) Has anyone in the UKNOF community heard of any other network operator working successfully with this setup? Yes it was first done with NetBSD and GateD almost 20 years ago; a large number of current LINX members use a similar set-up. B) LINX provides connectivity using Single Mode Fiber in Telehouse North. I am looking to learn more about how to connect the Openbsd box Ethernet network to fiber network of LINX i.e. Media converter vs a managed switch. and what make and models will be best option ? I am looking for a cost effective and flexible solution either Media converter vs a managed switch. I suggest you carefully look at the MOU for the LINX about how to connect. I'd also suggest talking to the LINX directly as they can often offer the best solution to how you connect - plugging in another switch is a big no no typically. Cheers, Neil.
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 25/03/2014 16:20, Randhir Prakash wrote: This is my first post as a community member ! I wish to use a Openbgpd using OpenBSD box to connect and peer with LINX members. you will need use an ethernet card where the OpenBSD driver supports interrupt mitigation. Otherwise, the box will be hammered when the packet load increases. Nick
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 26 Mar 2014, at 17:24, Neil J. McRae n...@domino.org wrote: I suggest you carefully look at the MOU for the LINX about how to connect. I’d also suggest talking to the LINX directly as they can often offer the best solution to how you connect – plugging in another switch is a big no no typically. This may have been the situation until a decade or so ago, but connections to IXPs using a switch are extremely common these days. This thread from 2005 (!) has some details: http://www.gossamer-threads.com/lists/nanog/users/87275?do=post_view_threaded#87275 -- Will Hargrave Technical Director LONAP Ltd +44 20 3137 8330
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 26 March 2014 17:39, Will Hargrave w...@harg.net wrote: On 26 Mar 2014, at 17:24, Neil J. McRae n...@domino.org wrote: I suggest you carefully look at the MOU for the LINX about how to connect. I'd also suggest talking to the LINX directly as they can often offer the best solution to how you connect - plugging in another switch is a big no no typically. This may have been the situation until a decade or so ago, but connections to IXPs using a switch are extremely common these days. Especially since the distinction between a switch and a router is being eroded. But I think I feel the same shudder that Neil does when someone suggests out loud that they are connecting L2 devices to the fabric :-) Aled
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
My openbsd box is virtualized on xenserver. I dont know which fiber nic is more compatible with xenserver. I also need one more port for transit. If you could suggest any cost effective managed switch with multiple sfp slot. I wonder that linx need only one mac id visible to their network. I hope that my virtual openbsd router nic will be only visible to linx and physical nic mac id will not be presented to linx. Kindly share youe experience. Sent from Samsung Mobile Original message From: Stuart Henderson s...@spacehopper.org Date:26/03/2014 10:21 PM (GMT+05:30) To: Randhir Prakash rand...@trijit.com Cc: uknof@lists.uknof.org.uk Subject: Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement On 2014/03/25 21:50, Randhir Prakash wrote: Hi, This is my first post as a community member ! I wish to use a Openbgpd using OpenBSD box to connect and peer with LINX members. I would like to know A) Has anyone in the UKNOF community heard of any other network operator working successfully with this setup? B) LINX provides connectivity using Single Mode Fiber in Telehouse North. I am looking to learn more about how to connect the Openbsd box Ethernet network to fiber network of LINX i.e. Media converter vs a managed switch. and what make and models will be best option ? I am looking for a cost effective and flexible solution either Media converter vs a managed switch. Why not just use a fibre NIC directly?
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 26/03/14 17:33, Nick Hilliard wrote: rubbish. IXPs only care about having a single MAC address behind each access port and that your assigned IP address is tied to that, nothing else. Doesn't matter if there's a switch in the middle or not. I think the definition of switch and router has blurred somewhat anyway. I take the path of least resistance these days, stop moaning at members for using shitty layer 2 devices / providers because it's only going to get more common and just filter it, we have the tools. -- Tom :: www.portfast.co.uk / @portfast :: hosted services, domains, virtual machines, consultancy
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 26 Mar 2014, at 17:44, Aled Morris al...@qix.co.uk wrote: I suggest you carefully look at the MOU for the LINX about how to connect. I’d also suggest talking to the LINX directly as they can often offer the best solution to how you connect – plugging in another switch is a big no no typically. This may have been the situation until a decade or so ago, but connections to IXPs using a switch are extremely common these days. Especially since the distinction between a switch and a router is being eroded. But I think I feel the same shudder that Neil does when someone suggests out loud that they are connecting L2 devices to the fabric :-) The major IXPs are all selling products which involve a provider doing just this in order to provide a partner programme, with multiple connections delivered on individual .1q tags on a trunk port. -- Will Hargrave LONAP Ltd +44 20 3137 8330
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
rubbish. IXPs only care about having a single MAC address behind each access port and that your assigned IP address is tied to that, nothing else. Doesn't matter if there's a switch in the middle or not. Nick That may well be true - but in this situation what was being proposed in my view is dreadful but your welcome to recommend what ever rubbish solution you think is acceptable :) Regards, Neil
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 26 Mar 2014, at 17:39, Will Hargrave w...@harg.net wrote: This may have been the situation until a decade or so ago, but connections to IXPs using a switch are extremely common these days. Will - Actually 20 years ago (!) Demon's router was connected via a switch and sat in Finchley (I still have the box!) so yes this is very common and has been for a long time - but it doesn't make it a good design and in my view is a big no no. Cheers Neil.
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 26 March 2014 17:42, Randhir Prakash rand...@trijit.com wrote: My openbsd box is virtualized on xenserver. I dont know which fiber nic is IME, virtualised hardware can add a significant overhead to the network stack, introducing a fair amount of latency. Will this matter? Also, the virtualisation might hide link errors from the openBSD box and cause problems?
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 26 Mar 2014, at 17:53, Paul Thornton p...@prt.org wrote: On 26/03/2014 17:44, Aled Morris wrote: Especially since the distinction between a switch and a router is being eroded. This. When is a switch a router and a router a switch these days? But I think I feel the same shudder that Neil does when someone suggests out loud that they are connecting L2 devices to the fabric :-) Same here. I think one of the key things to not get wrong is whatever you do, don't allow your L2 loop prevention protocol (which may be on by default) to leak out towards the exchange. Of course most exchanges now are much better at filtering this than in the past - mainly because the vendors finally implemented features we'd been asking about having for years. Did they? I think other changes made this work! But back to the original question, media converters in a network can be a real pain to troubleshoot as they are usually unmanaged or very lightly managed... but we've all had times where we've had to put them in the network somewhere. Be prepared to blame a media converter first without much evidence if you're going to use I'll be trendy and say that!
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 26 Mar 2014, at 22:15, Neil J. McRae n...@domino.org wrote: This may have been the situation until a decade or so ago, but connections to IXPs using a switch are extremely common these days. Will - Actually 20 years ago (!) Demon's router was connected via a switch and sat in Finchley (I still have the box!) so yes this is very common and has been for a long time - but it doesn't make it a good design and in my view is a big no no. Actually I think the things which made it a problem years ago (l2 hygiene, loops, etc) are less of a problem, since we have adequate protection. These days, as a proportion of traffic flow router controlplanes are far more vulnerable to things going wrong. Hell, LINX (and everyone else) *sell* a partner product which encourages people to connect over third party l2 infrastructure. Our challenges lie elsewhere, mostly within the fabric itself as opposed to the customer interface.
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 26 Mar 2014, at 22:26, Will Hargrave w...@harg.net wrote: Actually I think the things which made it a problem years ago (l2 hygiene, loops, etc) are less of a problem, since we have adequate protection. These days, as a proportion of traffic flow router controlplanes are far more vulnerable to things going wrong. Not sure I agree - I think the two are linked - a big enough flap from one of these carriers and it can create instabilities in the fabric and the L3 domain. Hell, LINX (and everyone else) *sell* a partner product which encourages people to connect over third party l2 infrastructure. Yup - but In my view it's not a great solution for us as network providers. Our challenges lie elsewhere, mostly within the fabric itself as opposed to the customer interface. I don't see how you can abstract the two in the way you are doing the two are linked.
Re: [uknof] Openbgpd for BGP peering with LINX and media converter requirement
On 26 Mar 2014, at 22:30, Nick Hilliard n...@foobar.org wrote: there's nothing wrong with connecting a switch to an IXP - people do it all the time and it's fine by any sane ixp. Nick Which is great - but in my view it's a path to pain for a variety of reasons. Can you keep plugging in as many of my competitors like this please? :) Regards, Neil
