BGP Enabled transit in Chicago (River North) and equipment

Mon Oct 14 22:36:18 UTC 2019

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 
> 
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>     <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>
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