Re: minimum requirements for a full bgp feed
256M should be considered a minimum. As far back as a year ago it was dicey to run BGP with 128M...you could load the table, but a BGP flap would cause MALLOCFAILs aplenty. If there's a router out there that can hold today's table in 128M, it won't stay that way for long. How may BGP peers are you planning on homing on this box? If you're looking at more than a handful, I'd even say that 256M may not be enough for long... -C On Jan 3, 2005, at 9:27 AM, Erik Amundson wrote: Well, In my experience it depends on the model of router. I had a 3640 (granted, it's old) with 128MB that was just fine until a couple of months ago, now it's not enough. For one BGP table you will have to have at least 256MB in a 36xx router. Our 720xVXR routers currently have 256MB in them as well, but we've already ordered upgrades to 1GB with new NPE-G1s... - Erik From: Mark Bojara [mailto:[EMAIL PROTECTED] Sent: Monday, January 03, 2005 8:23 AM To: nanog@merit.edu Subject: minimum requirements for a full bgp feed Hello All, If I wish to purchase a Cisco router that handles a full internet BGP feed what are the minimum specs I should be looking at? Regards Mark Bojara
Re: minimum requirements for a full bgp feed
"Erik Amundson" <[EMAIL PROTECTED]> writes: > In my experience it depends on the model of router. I had a 3640 > (granted, it's old) with 128MB that was just fine until a couple of > months ago, now it's not enough. For one BGP table you will have to > have at least 256MB in a 36xx router. Our 720xVXR routers currently > have 256MB in them as well, but we've already ordered upgrades to > 1GB with new NPE-G1s... It helps immensely to be running pre-ST-merge 12.0 code where possible (some situations in non-trivial networks can be positively affected by post-merge code, but you're not likely to find 36xx or 720xVXRs in central locations in such networks). You are not risking your "coolness points" to still be running 12.0(21)S8. :) ---Rob
Re: minimum requirements for a full bgp feed
Mark Bojara wrote: Hello All, If I wish to purchase a Cisco router that handles a full internet BGP feed what are the minimum specs I should be looking at? Regards Mark Bojara Somewhat on topic, saw this today http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCef51906 CSCef51906 Bug Details Headline BGP: reduce CPU impact of scanner Product all Model Component bgp Duplicate of Severity 3 Severity help Status Resolved Status help First Found-in Version 12.2S All affected versions First Fixed-in Version 12.3(12.3)T, 12.2(27.7)S Release Notes This ddts reduces the amount of CPU required by the "BGP Scanner" process.
Re: minimum requirements for a full bgp feed
36xx or 72xx Old != bad . All you need is MEMORY = >= 256 Mb. - Original 36xx, 72xx Message - From: Erik Amundson To: Mark Bojara ; nanog@merit.edu Sent: Monday, January 03, 2005 6:27 AM Subject: RE: minimum requirements for a full bgp feed Well, In my experience it depends on the model of router. I had a 3640 (granted, it's old) with 128MB that was just fine until a couple of months ago, now it's not enough. For one BGP table you will have to have at least 256MB in a 36xx router. Our 720xVXR routers currently have 256MB in them as well, but we've already ordered upgrades to 1GB with new NPE-G1s... - Erik From: Mark Bojara [mailto:[EMAIL PROTECTED] Sent: Monday, January 03, 2005 8:23 AMTo: nanog@merit.eduSubject: minimum requirements for a full bgp feed Hello All,If I wish to purchase a Cisco router that handles a full internet BGP feed what are the minimum specs I should be looking at?RegardsMark Bojara
Re: minimum requirements for a full bgp feed
On Mon, 3 Jan 2005, Mark Bojara wrote: > Well it must also be able to do QoS aswell Oh, you want it to forward packets also? How many PPS/How much bandwith? > but I take it thats pretty much standard in most 12.x IOS's.. Well, if you plan to run anything other than 12.0 you can forget about the full table. :) //tlund
RE: minimum requirements for a full bgp feed
Well, In my experience it depends on the model of router. I had a 3640 (granted, it's old) with 128MB that was just fine until a couple of months ago, now it's not enough. For one BGP table you will have to have at least 256MB in a 36xx router. Our 720xVXR routers currently have 256MB in them as well, but we've already ordered upgrades to 1GB with new NPE-G1s... - Erik From: Mark Bojara [mailto:[EMAIL PROTECTED] Sent: Monday, January 03, 2005 8:23 AMTo: nanog@merit.eduSubject: minimum requirements for a full bgp feed Hello All,If I wish to purchase a Cisco router that handles a full internet BGP feed what are the minimum specs I should be looking at?RegardsMark Bojara
Re: minimum requirements for a full bgp feed
On Mon, 3 Jan 2005, Mark Bojara wrote: > Hello All, > > If I wish to purchase a Cisco router that handles a full internet BGP > feed what are the minimum specs I should be looking at? > > Regards Mark Bojara If that is your ONLY requirement you can probably get a 4500M or 4700M cheap on EBAY. With 128Mbyte memory and IOS 12.0 it can handle a full feed. //tlund
