4gbit - hardware requirements



  • Hi

    I currently have a 1gbit internet connection on a dell poweredge 1850 server with pfsense - 2x Xeon single core 3.0ghz socket 604 8gb DDR2 ECC - So basically very old hardware.
    I will soon get an upgraded internet connection with 4gbit, so i think it is about time to replace the old router with some newer hardware - But I'm really in doubt how much CPU power i need to handle 4gbit.

    Initially i was thinking about getting a Pentium G4560 with a server mobo (c236 chipset) and 8gb DDR4 ECC rams, but after reading the recommended requirements I'm thinking that it might not be good enough ?
    So maybe ryzen 3 series could be a good option ?

    I'm gonna use simple services like captive portal, some monitoring and TCP dump with 200-400 users on the network. I'm planning to use two intel pro/1000 pt quad port network cards with link aggregation - I already have those on stock anyways - Are these cards good enough for my use case ?

    I'll really appreciate any input from you guys
    Thanks



  • how would you saturate 4gbit with 2x1gbit in LAG?



  • Hi

    I'm planning to use Two intel pro/1000 pt Quad cards - so 4x1gbit in LAG for WAN and 4x1gbit in LAG for LAN

    Br



  • I currently have a 1gbit internet connection on a dell poweredge 1850 server with pfsense - 2x Xeon single core 3.0ghz socket 604 8gb DDR2 ECC - So basically very old hardware.

    It can be that the CPUs are powerful enough for that but I had to guess, you're being limited by your DDR2 ram speed more than anything. The packet filter, the IP forwarding parts, and even NAT (part of pf, but run at a different phase) all hit the memory system. It's likely not that your CPU can't keep up, it's that your memory system is saturated.
    Gigabit routing hardware

    I will soon get an upgraded internet connection with 4gbit, so i think it is about time to replace the old router with some newer hardware - But I'm really in doubt how much CPU power i need to handle 4gbit.

    It will be at first more interesting for me, how that line will be offered to you by your ISP!
    And how it comes out of the wall at your location will be the second important question?
    If you are the lucky one you could get that Internet connection using MLPPP as a service from your ISP
    that would be luckily the best option in my eyes to get it working well. The other one will be, if it is only
    one cable out from the wall at your location you should better take a 10 GBit/s NIC or port to handle that
    line speed reasonable. In normal or real life you will get out of a 10 GBit/s Port or NIC something around 2 GBit7s and
    between 4 GBit/s as raw speed, for sure protocol and service used pending and based on.

    Initially i was thinking about getting a Pentium G4560 with a server mobo (c236 chipset) and 8gb DDR4 ECC rams, but after reading the recommended requirements I'm thinking that it might not be good enough ?
    So maybe ryzen 3 series could be a good option ?

    For electric power saving and horse power a small Intel Xeon E3-12xxv3/v5 will be the best option in my eyes.
    It can be also a refurbished one but with enough RAM if it comes to NIC tunings and/or other things so 8 GB to 16 GB
    would be nice to see or own.

    I'm gonna use simple services like captive portal, some monitoring and TCP dump with 200-400 users on the network.

    Perhaps, and for also pending on the offered services and used protocols you may be also lucky with one Intel Xeon E5-26xxv3
    and >3,0GHz let us say 4 - 6 Cores.

    I'm planning to use two intel pro/1000 pt quad port network cards with link aggregation - I already have those on stock anyways - Are these cards good enough for my use case ?

    A Link Aggregation Group will be a thing with two ends! And this must be then on the ISP site and your site!!
    Please don´t forget this here in that case.

    I'm planning to use Two intel pro/1000 pt Quad cards - so 4x1gbit in LAG for WAN and 4x1gbit in LAG for LAN

    For the LAN you will need something on the other end that is also supporting the LAG and for sure that is not different if you
    will switch that LAG to the WAN site!


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