monitor your ttls, maybe its dynamically changing on each stream, different ttls all the way across
On Thu, Oct 27, 2016 at 4:23 PM, Christopher Gray < cg...@graytechsoftware.com> wrote: > The R1 and R2 interfaces are not facing each other, they are both > connected separately to the Internet. R1 has a 1 Gig connection, R2 has a > 30 Meg connection delivered over 100 Mbps copper. > > > > On Thu, Oct 27, 2016 at 8:35 AM, Steve <li...@wavedirect.org> wrote: > >> I agree.. make sure you have R1 and R2's connecting interfaces both set >> to manual 100FD because it can't go any higher anyway. That is a >> mismatch. Not sure if that is THE problem but it is definitely A problem. >> >> ----- Original Message ----- >> From: "George Skorup" <geo...@cbcast.com> >> To: "af" <af@afmug.com> >> Sent: Wednesday, October 26, 2016 5:24:07 PM >> Subject: Re: [AFMUG] Trouble Identifying Throughput Issue >> >> The manual 100FD interface... what is that talking to? The Auto 1G on >> R1? If that's the case, I'd bet that's your problem. Keep in mind that >> you cannot run auto on one side and fixed FDX on the other side. This >> results in a duplex mismatch. The interface in auto will fall back to >> HDX. If you did auto one side and HDX on the other side, they'd both be >> HDX, so it would work fine. But obviously half duplex sux. >> >> On 10/26/2016 1:54 PM, Christopher Gray wrote: >> > R1 is the only router with 1 Gbps ports. Everything is auto except 1 >> > connection that requires manual settings. >> > >> > *R1* -- (Auto 1 G FD) ...Internet... (Manual 100 FD) -- *R2 *-- (Auto >> > 100 FD) -- *R3* -- (Auto 100 FD) ...M5... (Auto 100 FD) -- *R4* >> > >> > MTU is set to 1500 on every port (and the UBNT link). >> > >> > Flow control is off, and none of the interfaces show any pause frames >> > received. >> > >> > >> > This is a live link, but it is only running ~ 1 Mbps otherwise. >> > >> > >> > >> > On Wed, Oct 26, 2016 at 2:12 PM, Steve <li...@wavedirect.org >> > <mailto:li...@wavedirect.org>> wrote: >> > >> > Few questions come to mind. >> > >> > Are all set to auto negotiate or are they fixed at 100Mbit? >> > What are the MTU's of each connection? >> > Flow control turned on? >> > >> > >> > ----- Original Message ----- >> > From: "Christopher Gray" <cg...@graytechsoftware.com >> > <mailto:cg...@graytechsoftware.com>> >> > To: "af" <af@afmug.com <mailto:af@afmug.com>> >> > Sent: Wednesday, October 26, 2016 1:57:56 PM >> > Subject: [AFMUG] Trouble Identifying Throughput Issue >> > >> > I have a section of my network that is lacking something, and I >> can't >> > figure out where the problem is. I'm looking for any thoughts / >> > suggestions. >> > >> > 4x MikroTik routers >> > >> > Link speeds: >> > R1 -- (30 Mbps IP / Transport) -- R2 -- (100 Mbps Eth) -- R3 -- >> > (75 Mbps >> > UBNT M5) -- R4 >> > >> > The limiting factor for traffic should be the Transport, and I >> > expect to be >> > able to get 30 Mbps across the system (one-way). >> > >> > Testing from R1 to R3 runs 30 Mbps. >> > >> > Testing from R2 to R4 runs 75 Mbps. >> > >> > Testing from R1 to R4 only runs 10 Mbps (instead of 30). >> > >> > Tests were one-way btest with 20 TCP streams. >> > >> > Any ideas for something that would cause this? >> > >> > >> > > -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
