[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?
Re: [AFMUG] Trouble Identifying Throughput Issue
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" To: "af" 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?
Re: [AFMUG] Trouble Identifying Throughput Issue
is this an idle end to end circuit your testing?, monitor all 6 interfaces while testing to make sure youre not fighting yourself On Wed, Oct 26, 2016 at 1:12 PM, Steve 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" > To: "af" > 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.
Re: [AFMUG] Trouble Identifying Throughput Issue
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 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" > To: "af" > 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? >
Re: [AFMUG] Trouble Identifying Throughput Issue
log into the ubnt gear and verify neither are sitting at the unexpected reboot screen On Wed, Oct 26, 2016 at 1:54 PM, Christopher Gray < cg...@graytechsoftware.com> 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 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" >> To: "af" >> 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.
Re: [AFMUG] Trouble Identifying Throughput Issue
While running from R1 to R4 (maxing at only 10 Mbps), I can also run from R1 to R3 an additional 15+. Also, while running from R1 to R4 (again, maxing at 10 Mbps), I can also run from R3 to R4 an additional 60+. Aggregation on the M5 link is defaulted to 32 frames / 50,000 bytes. Could this be causing such issues on a good link? On Wed, Oct 26, 2016 at 2:54 PM, Christopher Gray < cg...@graytechsoftware.com> 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 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" >> To: "af" >> 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? >> > >
Re: [AFMUG] Trouble Identifying Throughput Issue
You don't have any ToughSwitches in there anyplace do you? On 10/26/2016 2:30 PM, Christopher Gray wrote: While running from R1 to R4 (maxing at only 10 Mbps), I can also run from R1 to R3 an additional 15+. Also, while running from R1 to R4 (again, maxing at 10 Mbps), I can also run from R3 to R4 an additional 60+. Aggregation on the M5 link is defaulted to 32 frames / 50,000 bytes. Could this be causing such issues on a good link? On Wed, Oct 26, 2016 at 2:54 PM, Christopher Gray mailto:cg...@graytechsoftware.com>> 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 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" mailto:cg...@graytechsoftware.com>> To: "af" 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?
Re: [AFMUG] Trouble Identifying Throughput Issue
Neither was... but I rebooted them anyhow. On Wed, Oct 26, 2016 at 3:29 PM, That One Guy /sarcasm < thatoneguyst...@gmail.com> wrote: > log into the ubnt gear and verify neither are sitting at the unexpected > reboot screen > > On Wed, Oct 26, 2016 at 1:54 PM, Christopher Gray < > cg...@graytechsoftware.com> 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 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" >>> To: "af" >>> 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. >
Re: [AFMUG] Trouble Identifying Throughput Issue
No ToughSwitches in my system, just the RouterBoards. On Wed, Oct 26, 2016 at 4:02 PM, Sam Morris wrote: > You don't have any ToughSwitches in there anyplace do you? > > On 10/26/2016 2:30 PM, Christopher Gray wrote: > >> While running from R1 to R4 (maxing at only 10 Mbps), I can also run >> from R1 to R3 an additional 15+. >> >> Also, while running from R1 to R4 (again, maxing at 10 Mbps), I can also >> run from R3 to R4 an additional 60+. >> >> >> Aggregation on the M5 link is defaulted to 32 frames / 50,000 bytes. >> Could this be causing such issues on a good link? >> >> >> >> >> >> >> On Wed, Oct 26, 2016 at 2:54 PM, Christopher Gray >> mailto:cg...@graytechsoftware.com>> 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 > <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" > <mailto:cg...@graytechsoftware.com>> >> To: "af" 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? >> >> >> >> >
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 <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" mailto:cg...@graytechsoftware.com>> To: "af" 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?
Re: [AFMUG] Trouble Identifying Throughput Issue
define your transport, are you talking a layer 2 circuit, vpn tunnel, fiber, etc? On Wed, Oct 26, 2016 at 4:24 PM, George Skorup wrote: > 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 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" >> To: "af" >> 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.
Re: [AFMUG] Trouble Identifying Throughput Issue
I'm not sure this is leading to anything, but I tried turning off aggregation. R3 -> R4 UBNT link throughput test dropped to about 30 Mbps (less than half) but my R1 -> R4 test almost doubled to about 20 Mbps. [I'm using firmware v5.6.9, but I think this issue has been present for a while.] I experimented with various frame / size settings, but did not see any further improved results. I tried enabling flow control on the MikroTik ports used for the UBNT link, but that did not help (and no pause frames were recorded). It is probably time to take a break and mess with it tomorrow. Thank you for the help today as usual. On Wed, Oct 26, 2016 at 7:15 PM, Christopher Gray wrote: > R1 is connected to the Internet via an MRV auto negotiated to 1G FD (This > is a 1 G Internet connection) > > R2 is connected to the Internet through a copper connection to a Juniper > switch on a 30 Mbps layer 2 fiber transport to a switch where the Internet > service is connected. This R2 -- Juniper connection is set manually because > they would not play nice if set to auto. > > I have a similar setup on the same fiber system in 3 other locations. None > of which have this behavior (but also, none of which have UBNT M5 hardware, > so that could be a potential issue). > > > On Wed, Oct 26, 2016 at 5:31 PM, That One Guy /sarcasm < > thatoneguyst...@gmail.com> wrote: > >> define your transport, are you talking a layer 2 circuit, vpn tunnel, >> fiber, etc? >> >> On Wed, Oct 26, 2016 at 4:24 PM, George Skorup wrote: >> >>> 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 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" >>>> To: "af" >>>> 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. >> > >
Re: [AFMUG] Trouble Identifying Throughput Issue
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" To: "af" 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 <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" <mailto:cg...@graytechsoftware.com>> > To: "af" 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? > >
Re: [AFMUG] Trouble Identifying Throughput Issue
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 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" > To: "af" > 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 > <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" > <mailto:cg...@graytechsoftware.com>> > > To: "af" 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? > > > > >
Re: [AFMUG] Trouble Identifying Throughput Issue
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 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" >> To: "af" >> 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 > > <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" > > <mailto:cg...@graytechsoftware.com>> >> > To: "af" 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.