BGP Enabled transit in Chicago (River North) and equipment

Ross Tajvar ross at tajvar.io
Thu Oct 17 01:05:17 UTC 2019


If you're okay with a tunnel, you may want to check out http://bgp.services.

On Wed, Oct 16, 2019 at 8:36 AM John Palmer <nanog2 at adns.net> wrote:

> I've got a Cisco 881 with the "Advanced IP features" This will do for what
> I'm
> trying to accomplish.
>
> I think I'm going to go with a BGP tunnel.
>
> No one at RCN has any clue about this - they may not even provide the
> server. The sales
> droids only know how to sell their pre-packaged plans.
>
> Does anyone know who provides BGP tunnel session?  Doesn't really need to
> be RCN as I can create a tunnel with any peer.
>
> Thanks
> >
> > They are obviously not running full tables on their 3640. I'd imagine a
> > raspberry pi would have more BGP capability and throughput than a 3640,
> > though I don't recommend doing that even as a joke. But an ERR would be
> > fine if they're expecting nothing more than a slightly faster 3640 with
> > maybe some extra features.
> >
> > On 9/3/19 3:54 PM, Florian Brandstetter via NANOG wrote:
> > > Ubiquiti's EdgeRouter Lite is equipped with 512 MiB of DDR2 memory, of
> > > which after startup, roughly 491 MiB can be utilized. 119 MiB of the
> > > remaining memory are allocated by the base of the router already,
> > > which leaves you with a remainder of 372 MiB memory. Memory usage
> > > depends on the architecture for objects, for example there's a large
> > > difference between x86 and x86_64, since on x86_64, the compiler will
> > > generally use 64bit boundaries to be faster; the ERL runs on a MIPS64
> > > architecture, which will have a similar trade-off. To get to the
> > > point, let's have a quick look at the components using memory: bgpd,
> > > zebra, kernel. Roughly 180 MiB of memory are required to keep a single
> > > full table in bgpd alone, leaving you with 192 MiB of free memory.
> > > Accounting further, zebra will eat at least another 100 MiB for
> > > exporting the BGP RIB to the Kernel (FIB), leaving you with 100 MiB.
> > > At this point, you have a mere 92 MiB left for fitting the routes into
> > > the kernel, and to leave room for RX buffers on sockets.
> > >
> > > I don't see full tables happening from a memory perspective on the
> > > EdgeRouter Lite, you would want to look at something with at least 2
> > > GiB of memory to keep the whole system running smoothly, and when
> > > using Quagga and Zebra, that's still aimed rather low. FRRouting at
> > > this point uses 2 GiB for 4 full tables on an x86 system, without any
> > > magic attached.
> > >
> > > Having kept it unmentioned, the EdgeRouter Lite has a dual-core with
> > > 500 MHz, and surely your BGP updates processing isn't offloaded, hence
> > > you will pretty quickly kill the whole router when you flood it with a
> > > full table, unless you set very low queue sizes, which isn't really
> > > reliable though since you generally want BGP to converge fast - not
> > > after a period of 15 minutes with the CPU sitting on 100%.
> > >
> > > You might want to install something like OpenWRT (which I don't know
> > > the possibility of on an ERL), and run BIRD if you're tied to a low
> > > memory footprint, however, in a base vendor-generic setup of the ERL,
> > > it's beyond my understanding why one would even suggest running a full
> > > table on it.
> > > Sent from Mailspring
> >
> > --------------69793807A24007030ACBABEA
> > Content-Type: text/html; charset=utf-8
> > Content-Transfer-Encoding: 7bit
> >
> > <html>
> >   <head>
> >     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
> >   </head>
> >   <body text="#000000" bgcolor="#FFFFFF">
> >     <p>They are obviously not running full tables on their 3640. I'd
> >       imagine a raspberry pi would have more BGP capability and
> >       throughput than a 3640, though I don't recommend doing that even
> >       as a joke. But an ERR would be fine if they're expecting nothing
> >       more than a slightly faster 3640 with maybe some extra
> features.<br>
> >     </p>
> >     <div class="moz-cite-prefix">On 9/3/19 3:54 PM, Florian Brandstetter
> >       via NANOG wrote:<br>
> >     </div>
> >     <blockquote type="cite"
> >       cite="mid:69414933-770B-464C-B9DA-A8F7A61566A1 at getmailspring.com">
> >       <meta http-equiv="content-type" content="text/html; charset=UTF-8">
> >       <div>Ubiquiti's EdgeRouter Lite is equipped with 512 MiB of DDR2
> >         memory, of which after startup, roughly 491 MiB can be utilized.
> >         119 MiB of the remaining memory are allocated by the base of the
> >         router already, which leaves you with a remainder of 372 MiB
> >         memory. Memory usage depends on the architecture for objects,
> >         for example there's a large difference between x86 and x86_64,
> >         since on x86_64, the compiler will generally use 64bit
> >         boundaries to be faster; the ERL runs on a MIPS64 architecture,
> >         which will have a similar trade-off. To get to the point, let's
> >         have a quick look at the components using memory: bgpd, zebra,
> >         kernel. Roughly 180 MiB of memory are required to keep a single
> >         full table in bgpd alone, leaving you with 192 MiB of free
> >         memory. Accounting further, zebra will eat at least another 100
> >         MiB for exporting the BGP RIB to the Kernel (FIB), leaving you
> >         with 100 MiB. At this point, you have a mere 92 MiB left for
> >         fitting the routes into the kernel, and to leave room for RX
> >         buffers on sockets.</div>
> >       <br>
> >       <div>I don't see full tables happening from a memory perspective
> >         on the EdgeRouter Lite, you would want to look at something with
> >         at least 2 GiB of memory to keep the whole system running
> >         smoothly, and when using Quagga and Zebra, that's still aimed
> >         rather low. FRRouting at this point uses 2 GiB for 4 full tables
> >         on an x86 system, without any magic attached.</div>
> >       <br>
> >       <div>Having kept it unmentioned, the EdgeRouter Lite has a
> >         dual-core with 500 MHz, and surely your BGP updates processing
> >         isn't offloaded, hence you will pretty quickly kill the whole
> >         router when you flood it with a full table, unless you set very
> >         low queue sizes, which isn't really reliable though since you
> >         generally want BGP to converge fast - not after a period of 15
> >         minutes with the CPU sitting on 100%.</div>
> >       <br>
> >       <div>You might want to install something like OpenWRT (which I
> >         don't know the possibility of on an ERL), and run BIRD if you're
> >         tied to a low memory footprint, however, in a base
> >         vendor-generic setup of the ERL, it's beyond my understanding
> >         why one would even suggest running a full table on it.</div>
> >       <img class="mailspring-open" alt="Sent from Mailspring"
> >         style="border:0; width:0; height:0;"
> > src="
> https://link.getmailspring.com/open/[email protected]?me=06695157&recipient=bmFub2dAbmFub2cub3Jn
> "
> >         moz-do-not-send="true" width="0" height="0">
> >     </blockquote>
> >   </body>
> > </html>
> >
> > --------------69793807A24007030ACBABEA--
> >
>
>
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