Re: [WISPA] Do you recognize this tower?

tower leg part numbers are marked: 8807379-1 880380-1 880382-1 881569-1 NO pics yet On Mon, Nov 7, 2016 at 2:47 PM, Josh Luthman wrote: > No pictures > > > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > >

Re: [WISPA] Switch causing packet loss?

Just to follow up on this. I'm working on a network at the moment, diagnosing port issues on the Netonix. We had some bad crimps (I'm 6000 miles away) and we've been seeing some CRC errors and intermittent connection loss on AF5x links. Pretty sure it's the ethernet connections and finally

Re: [WISPA] Switch causing packet loss?

Microbursts causing buffer drops on egress ports to non-10G capable destinations. The switch wants to send data at a rate faster than the 1G devices can take it in, so it has to buffer it's data on those ports. Eventually those buffers fill up, and it taildrops traffic. TCP flow control takes over

Re: [WISPA] Switch causing packet loss?

So you're saying, make sure Flow Control is enabled on the ports? On Mon, Nov 7, 2016 at 8:22 AM, Josh Reynolds wrote: > Microbursts causing buffer drops on egress ports to non-10G capable > destinations. The switch wants to send data at a rate faster than the 1G > devices

Re: [WISPA] Switch causing packet loss?

Negative, layer2 flow control is an axe when you need a scalpel. Turn it off everywhere! Layer3 has automatic mechanisms to help handle bandwidth saturation, and packet loss is part of that process. Furthermore, proper ToS/DSCP queueing is equally important. On Nov 7, 2016 9:36 AM, "Judd Dare"

Re: [WISPA] Switch causing packet loss?

I've recently been looking at arista switches to do something similar. Wonder how they would act? On Nov 7, 2016 8:58 AM, "TJ Trout" wrote: > I have a 10G switch that is switching everything of mine at my NOC, > including peers, router wan, router lan, uplink to tower, etc > >

Re: [WISPA] Switch causing packet loss?

On 11/7/2016 10:40 AM, Josh Reynolds wrote: Negative, layer2 flow control is an axe when you need a scalpel. Turn it off everywhere! Layer3 has automatic mechanisms to help handle bandwidth saturation, and packet loss is part of that process. Furthermore, proper ToS/DSCP queueing is

[WISPA] Switch causing packet loss?

I have a 10G switch that is switching everything of mine at my NOC, including peers, router wan, router lan, uplink to tower, etc During peak traffic periods ~2gbps I'm seeing 1% packet loss and throughput will drop to 0 for just a second and resume normal for a few minutes before dropping back

[WISPA] Switch packet loss

I have a 10G switch that is switching everything of mine at my NOC, including peers, router wan, router lan, uplink to tower, etc During peak traffic periods ~2gbps I'm seeing 1% packet loss and throughput will drop to 0 for just a second and resume normal for a few minutes before dropping back

Re: [WISPA] Wichita KS

I just forwarded to my contact in Wichita. Will let you know what he comes back with. -Zach On Mon, Nov 7, 2016 at 1:52 PM, Mike Francis wrote: > Can anyone service this location? > > 1855 Innovation Blvd Wichita Ks 67260 > > Thank you, > -- > John Michael Francis

Re: [WISPA] Switch causing packet loss?

Sorry, correction layer 4. TCP slow start and window sizing. Allowing l2 to control your drops in a willy nilly fashion though is not a good idea... And random "pauses" on your backbone is also a poor idea. I'm of the opinion that WISP networks likely need to move to deep buffer data center

Re: [WISPA] Switch causing packet loss?

Not an expert at this level of switching, but my understanding, as your suggesting is to enable Flow Control on the ports, possibly more on the 1G ports because they are the bottle neck. If the 10G port is receiving full speed and passing on to a 1G port which can't pass fast enough, then the

Re: [WISPA] Switch causing packet loss?

On 11/7/2016 11:05 AM, Josh Reynolds wrote: Sorry, correction layer 4. TCP slow start and window sizing. Allowing l2 to control your drops in a willy nilly fashion though is not a good idea... And random "pauses" on your backbone is also a poor idea. The idea is to smooth out the flow end

Re: [WISPA] Switch causing packet loss?

Yes, if you like various ms pauses of your backbone then enable flow control. I hope you don't run VoIP or have gamer customers! ;) On Nov 7, 2016 10:19 AM, "Judd Dare" wrote: > Not an expert at this level of switching, but my understanding, as your > suggesting is to

Re: [WISPA] Switch causing packet loss?

I would agree, but sadly WISP networks are full of 100Mbps links AND a ton of variable bandwidth ptp and ptmp links. You will have to buffer to have any kind of meaningful throughput, otherwise Bandwidth Delay Product calculations will drive your throughout into the dirt. Buffer BLOAT is bad.

Re: [WISPA] Switch causing packet loss?

In addition, imagine the following scenario: 8 port switch at a tower. Gigabit Ethernet port. 7 ports on the switch, all have 100Mbps links to APs. Buffer architecture is a shared memory design, with say 4MB available. Do the math. The buffer on that switch is going to fill up very quickly,

Re: [WISPA] Switch causing packet loss?

So, a bit of back story on this... It's kind of "my fault" that the AF line has flow control :P At Performant Networks we decided to do some RFC2544 testing of AirFibers (with Chuck watching via a Sykpe call). Turns out they didn't like that too much. Once they added flow control, there was much

[WISPA] Wichita KS

Can anyone service this location? 1855 Innovation Blvd Wichita Ks 67260 Thank you, -- John Michael Francis II JMF Solutions, Inc Wavefly - Internet Voip Cloud INC 5000 #2593 CRN Fast Growth #105 251-517-5069 http://jmfsolutions.net http://wavefly.com "People are unreasonable, illogical, and

Re: [WISPA] Do you recognize this tower?

No pictures Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Mon, Nov 7, 2016 at 3:46 PM, Marco Coelho wrote: > > I'm looking at a tower (self supporter) which mechanically looks like one > of my Rohn SSV towers. There is

[WISPA] Do you recognize this tower?

I'm looking at a tower (self supporter) which mechanically looks like one of my Rohn SSV towers. There is not a tower part number plate on the tower, but the legs are marked: 880379-1 880380-1 880381-1 880382-1 881569-1 Ideas? -- Marco C. Coelho Argon Technologies Inc. POB 875 Greenville,