I don't expect the traffic levels to reach Gigabit levels so I doubt I will ever come close to hitting any sort of limit on the interfaces, but would I have better support with Intel chipsets over Broadcom?
Is there a preferred Ethernet chipset for this type of setup? James D. Reid Spacenet Inc. Network Engineer Office: (703) 848 - 1266 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Claudio Jeker Sent: Monday, July 12, 2010 5:30 PM To: [email protected] Subject: Re: Openbgpd Max Number of Neighbors per Instance On Mon, Jul 12, 2010 at 03:07:23PM -0400, James Reid - McLean wrote: > Does anyone have information about the maximum number of BGP neighbors a > single instance of OpenBGPD could support assuming the following: > > 1. OpenBGPD would send only "Default Route" to each neighbor > 2. Each neighbor would advertise only 1 subnet to OpenBGPD > 3. OpenBGPD could run in passive mode for all of the connections > 4. OpenBGPD running on new/current/modern fully supported hardware with > no other services running. > > I am looking to scale this configuration to support between 500 - 10,000 > peers and I need to know how much hardware I would need to purchase to > support this. > Nobody ever tested 10k peers but here are some tips. Get a box with 3-4GB of RAM. Do not run i386 (amd64 has less kvm restrictions and you will need a lot of kernel memory). Increase kern.maxclusters to 4-8 times the max number of sockets you expect and don't forget to increase kern.nfiles. Expect to hit a few other issues as well. I know of people doing tests with 500-1000 sessions that actually injected a few routes. But limiting bgpd to only announce a default route should reduce the load on the RDE massivly. good luck -- :wq Claudio ------------------------------------------------------------------------ Spacenet Inc. Notice and Disclaimer IMPORTANT: This e-mail along with any attachment(s) is intended for the above named addressee(s) only, and may contain information which is proprietary, confidential and/or privileged. If you are not the intended recipient or if you received this e-mail transmittal in error, please be advised that any review, copying, use, distribution or dissemination of this e-mail and any attachment(s) is strictly prohibited. Please immediately notify the sender by e-mail or to phone number 703-848-1000 and delete this e-mail and any attachments. Thank you. ------------------------------------------------------------------------
