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    New SG-3100 with gigabit comcast line... can't get over 540Mbps

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    • johnpozJ
      johnpoz LAYER 8 Global Moderator
      last edited by

      Well for starters you not even using the same server for testing. I have seen many a server on speedtest not capable of the speeds.. Your high speed test using server Cruzio (santa cruz) while your lower speed test using comcast (san fran).

      Make sure your using the same server you see the higher speed test with.

      An intelligent man is sometimes forced to be drunk to spend time with his fools
      If you get confused: Listen to the Music Play
      Please don't Chat/PM me for help, unless mod related
      SG-4860 24.11 | Lab VMs 2.8, 24.11

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      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        How exactly are you connecting the SG-3100?

        Is it pulling a public IP via DHCP?

        I would certainly expect it to get close to line rate there in straight firewall/NAT throughput.

        Steve

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        • DerelictD
          Derelict LAYER 8 Netgate
          last edited by

          How is your WAN provisioned? DHCP? PPPoE? Static?

          Chattanooga, Tennessee, USA
          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
          Do Not Chat For Help! NO_WAN_EGRESS(TM)

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          • T
            teksavy
            last edited by

            I'm pulling the WAN IP via DHCP.

            The server doesn't matter. After 10+ tests with different servers, the results are all pretty much the same.

            Like I said before, straight out of the box default configuration yields the same results.

            Any ideas are appreciated.

            Thank you,

            Ed

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            • johnpozJ
              johnpoz LAYER 8 Global Moderator
              last edited by johnpoz

              From your public IPs you listed there in your 2 tests - your clearly on a different ISP segment when your slower vs the segment your on when your faster.

              So it is possible its your isp. I would suggest for a valid test take your isp out of the equation. Why don't you put box on the wan side running iperf, and a box on the lan side and do some testing that way, etc.

              have a 3100 here, but its in production - and would get screamed at for taking it down for a test ;) Sorry but our connection here is not gig, so I can not just do a speed test to show getting gig, etc.

              An intelligent man is sometimes forced to be drunk to spend time with his fools
              If you get confused: Listen to the Music Play
              Please don't Chat/PM me for help, unless mod related
              SG-4860 24.11 | Lab VMs 2.8, 24.11

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              • T
                teksavy
                last edited by

                I figured out what the problem was... and it had nothing to do with the Netgate SG-3100!

                Speedtest through the SG-3100 now....
                alt text

                The issue was that another gigabit 8-port switch was in between my main machine and my core HP ProCurve switch. It simply could not handle the sustained throughput.

                Once I connected my main machine directly to the core switch... viola... issue gone.

                Shame on me for not testing better (and being consistent with my test machines) before posting. I should have done better apples to apples testing. I'm sorry to bother the group with a bad post.

                Hopefully others will see this and know that those little 8 port gigabit switches can't really handle gigabit sustained traffic and they should really test everything before posting.

                Mea culpa,

                Ed

                PS: Does anyone have a favorite Bootable USB linux distro that has some nice network testing tools built in like iperf? I'd like to add it to my toolbox.

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                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  Nice catch. I would not have expected that. Even from the lowest of low end switches!

                  Steve

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                  • DerelictD
                    Derelict LAYER 8 Netgate
                    last edited by

                    Please name names. ☺ What switch was that?

                    Chattanooga, Tennessee, USA
                    A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                    DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                    Do Not Chat For Help! NO_WAN_EGRESS(TM)

                    T 1 Reply Last reply Reply Quote 0
                    • T
                      teksavy @Derelict
                      last edited by

                      @derelict said in New SG-3100 with gigabit comcast line... can't get over 540Mbps:

                      Please name names. ☺ What switch was that?

                      So.. I tried two...

                      The worst one (in the original post) in terms of speed was the Trendnet "GreenNet" switch model TEG-S81g (HW v2.0R) with 514 Mbps.

                      I then tried a non-green 8 port switch from Netgear- one of those "business grade" units with a metal box and probably lead weight inside. Model GS108-400NAS. It yielded slightly better- around 580Mbps.

                      Hope this helps.

                      -Ed

                      G 1 Reply Last reply Reply Quote 1
                      • DerelictD
                        Derelict LAYER 8 Netgate
                        last edited by

                        Thanks. Trendnet and Netgear are some of my all-time favorites. 🙄

                        Was kind of hoping you'd say TP-Link though. :)

                        Chattanooga, Tennessee, USA
                        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                        Do Not Chat For Help! NO_WAN_EGRESS(TM)

                        T 1 Reply Last reply Reply Quote 0
                        • T
                          teksavy @Derelict
                          last edited by

                          @derelict said in New SG-3100 with gigabit comcast line... can't get over 540Mbps:

                          Thanks. Trendnet and Netgear are some of my all-time favorites. 🙄

                          Was kind of hoping you'd say TP-Link though. :)

                          TBH, I was surprised too! I've had really good luck with Netgear and TPLink switches.

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                          • G
                            gfeiner @teksavy
                            last edited by

                            @teksavy said in New SG-3100 with gigabit comcast line... can't get over 540Mbps:

                            @derelict said in New SG-3100 with gigabit comcast line... can't get over 540Mbps:

                            Please name names. ☺ What switch was that?

                            So.. I tried two...

                            The worst one (in the original post) in terms of speed was the Trendnet "GreenNet" switch model TEG-S81g (HW v2.0R) with 514 Mbps.

                            I then tried a non-green 8 port switch from Netgear- one of those "business grade" units with a metal box and probably lead weight inside. Model GS108-400NAS. It yielded slightly better- around 580Mbps.

                            Hope this helps.

                            -Ed

                            Thanks for the info. I have a TEG-S80g. I'll need to keep this in mind if I ever get gig internet.

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                            • B
                              behemyth
                              last edited by

                              My 3100 has been rock solid running Comcast Gig. Make sure you test with [speedtest.xfinity.com], it will use a dedicated server that is always able to do gig, when you just use speedtest you use other peoples servers, and most of the time they dont have gig bandwidth.

                              I did have weird issues with my modem firmware causing slower speeds, but they appear to have fixed that. What modem model are you running btw?

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                              • T
                                teksavy @behemyth
                                last edited by

                                I'm running a Motorola MB8600 (32 channels down and 8 channels up). Total speed demon and very reliable. Only thing I wish it had was more than one port. (It actually has 4 ports, but three are masked off- for use with bonded connections only).

                                @behemyth said in New SG-3100 with gigabit comcast line... can't get over 540Mbps:

                                My 3100 has been rock solid running Comcast Gig. Make sure you test with [speedtest.xfinity.com], it will use a dedicated server that is always able to do gig, when you just use speedtest you use other peoples servers, and most of the time they dont have gig bandwidth.

                                I did have weird issues with my modem firmware causing slower speeds, but they appear to have fixed that. What modem model are you running btw?

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                                  border
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                                    border @border
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