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temuri426
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need to choose hardware to handle full BGP table

Fri Apr 27, 2012 9:48 am

Hello,

we are planing a medium size ISP and will use ROS for core router. just not sure about hardware , because we will BGP on those core routers and receive almost 400K routes.

If someone has experience with choosing hardware for BGP, please give a bit advice how much RAM memory do i need, what CPU ?


thanks ahead
 
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JJCinAZ
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Re: need to choose hardware to handle full BGP table

Fri Apr 27, 2012 6:36 pm

I'd recommend an x86 based system, dual-core with a simple SATA flash for boot, 2GB of RAM, and Intel-based NIC chipsets like the 82546 and 82573. Stay away from fancy array subsystems and try and stick with hardware from the Supported Hardware list. The KISS principal works well here.

Attached are shots of one of my BGP routers with close to 1.2m prefixes while moving a couple of hundred Mbps. You'll notice the CPU load is quite low and it's only using 700M of RAM. It's running ROS 4.17.
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temuri426
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Re: need to choose hardware to handle full BGP table

Fri Apr 27, 2012 7:33 pm

JJCinAZ

thanks for the answer, it was very useful.


also will be glad if someone posts several examples like "JJCinAZ"
 
dnyl
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Re: need to choose hardware to handle full BGP table

Sat Apr 28, 2012 2:55 pm

I'd recommend an x86 based system, dual-core with a simple SATA flash for boot, 2GB of RAM, and Intel-based NIC chipsets like the 82546 and 82573. Stay away from fancy array subsystems and try and stick with hardware from the Supported Hardware list. The KISS principal works well here.

Attached are shots of one of my BGP routers with close to 1.2m prefixes while moving a couple of hundred Mbps. You'll notice the CPU load is quite low and it's only using 700M of RAM. It's running ROS 4.17.
What kind of devices are you in peer? Cisco or force10 or mikrotik or something?
 
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JJCinAZ
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Re: need to choose hardware to handle full BGP table

Mon Apr 30, 2012 6:30 pm

I haven't asked lately, but I'm sure it's Cisco and Juniper.
 
rodolfo
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Re: need to choose hardware to handle full BGP table

Mon Apr 30, 2012 9:27 pm

I use RB1000 and it support two full bgp table with connection track enabled
I think RB1100AH2 is more than sufficient
rodolfo
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temuri426
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Re: need to choose hardware to handle full BGP table

Wed May 02, 2012 10:10 am

hello,

how many prefixes do you have?

what is cpu average load?
 
rodolfo
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Re: need to choose hardware to handle full BGP table

Wed May 02, 2012 12:55 pm

two istances with 404607 prefixes, cpu average 45%
rodolfo
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