BGP memory/cpu req
Anyone running BGP with a global routing table on zebra/debian/gnu/linux? How much memory would it require? Does the CPU matter or is it mostly a RAM issue? thx, -- Elod VALKAI Network Administrator RC Team SA, Timisoara
Re: BGP memory/cpu req
On Tue, 2003-03-11 at 11:28, Valkai Elod wrote: Anyone running BGP with a global routing table on zebra/debian/gnu/linux? How much memory would it require? Does the CPU matter or is it mostly a RAM issue? thx, Check out the Zebra mailinglist, it has been discussed there over and over. Basically, a full routing table would require 512Mb at least. CPU isn't that much of an issue, any 'normal' CPU (P3) would do... Teun
Re: BGP memory/cpu req
On Tue, Mar 11, 2003 at 12:28:04PM +0200, Valkai Elod wrote: Anyone running BGP with a global routing table on zebra/debian/gnu/linux? I do. The machine has 256 Mb, and is pretty happy with it. Here is an extract from ps aux : root 616 0.0 11.3 31012 29204 ? SMar02 6:35 /usr/sbin/zebra -d root 620 1.0 14.6 39924 37876 ? SMar02 132:05 /usr/sbin/bgpd -d And here is free : [EMAIL PROTECTED]:~$ free total used free sharedbuffers cached Mem:257980 239160 18820 15304 135116 11216 -/+ buffers/cache: 92828 165152 Swap:0 0 0 How much memory would it require? Does the CPU matter or is it mostly a RAM issue? It's a 450 MHz PIII. CPU power depends on the trafic you expect. We have two peers, and get full routing table from both (+- 120 000 routes). HTH. -- Nicolas Bougues Axialys Interactive
Re: BGP memory/cpu req
On Tue, 11 Mar 2003, Nicolas Bougues wrote: The machine has 256 Mb, and is pretty happy with it. It's a 450 MHz PIII. CPU power depends on the trafic you expect. We have two peers, and get full routing table from both (+- 120 000 routes). That's the confirmation I was waiting for. I'll have one peer with a full table and two without. thanks, -- Elod VALKAI Network Administrator RC Team SA, Timisoara
Re: BGP memory/cpu req
On Tue, 2003-03-11 at 05:58, Teun Vink wrote: Check out the Zebra mailinglist, it has been discussed there over and over. Basically, a full routing table would require 512Mb at least. CPU isn't that much of an issue, any 'normal' CPU (P3) would do... 512MB is more than enough for zebra. I would be comfortable running zebra on as little as 256MB of memory. If you want to use the box for other tasks like squid, etc. you might become constrained. We use ours for some RRD polling. I have a box with two full sessions of about 120k prefixes from transit providers, both sessions with soft-reconfig enabled. CPU is never an issue, as far more CPU time is spent handling ethernet card Rx interrupts than BGP or OSPF updates. The box forwards an average of 11kpps and 60Mbit/sec, peaks around 16kpps and 90Mbit/sec. [EMAIL PROTECTED]:~# ps u `cat /var/run/zebra.pid` `cat /var/run/bgpd.pid` `cat /var/run/ospfd.pid` USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 197 0.1 2.4 25916 24872 ? S 2002 143:03 /usr/local/sbin/zebra -d -f/etc/zebra/zebra.conf root 200 0.6 6.2 65756 64960 ? S 2002 786:20 /usr/local/sbin/bgpd -d -f/etc/zebra/bgpd.conf root 828 0.0 0.1 2292 1204 ?S 2002 20:06 /usr/local/sbin/ospfd -d -f/etc/zebra/ospfd.conf [EMAIL PROTECTED]:~# free total used free sharedbuffers cached Mem: 1033380 864148 169232 0 21348 622244 -/+ buffers/cache: 220556 812824 Swap: 497972 0 497972 [EMAIL PROTECTED]:~# -- Jeff S Wheeler [EMAIL PROTECTED] signature.asc Description: This is a digitally signed message part
