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-a8f7a6156...@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/69414933-770b-464c-b9da-a8f7a6156...@getmailspring.com?me=06695157&recipient=bmFub2dAbmFub2cub3Jn" > moz-do-not-send="true" width="0" height="0"> > </blockquote> > </body> > </html> > > --------------69793807A24007030ACBABEA-- >