You can do a bit more with metro-e style NIDS... those have the layer2 tools to do proper testing.

Josh Reynolds, Chief Information Officer
SPITwSPOTS, www.spitwspots.com <http://www.spitwspots.com>

On 10/23/2014 12:37 PM, Eric Kuhnke via Af wrote:
it's going to be really hard to do any meaningful diagnostics with a layer 2 switch on each end, not routers... you could be seeing a broadcast flood of some type.

On Thu, Oct 23, 2014 at 1:10 PM, Timothy D. McNabb via Af <af@afmug.com <mailto:af@afmug.com>> wrote:

    Unfortunately there is no QoS and flow control is off on the
    switches L

    Dragonwave was contacted as well. No determination yet though.

    -Tim

    *From:*Af [mailto:af-boun...@afmug.com
    <mailto:af-boun...@afmug.com>] *On Behalf Of *Peter Kranz via Af
    *Sent:* Wednesday, October 22, 2014 1:36 PM


    *To:* af@afmug.com <mailto:af@afmug.com>
    *Subject:* Re: [AFMUG] Dragonwave latency issues

    Backpressure from the switches in terms of flow-control can show
    as latency on dragonwave links.

    Disable any QOS features on the dragonwave if you are using them.

    Email dragonwave support

    *Peter Kranz
    *Founder/CEO - Unwired Ltd
    www.UnwiredLtd.com <http://www.unwiredltd.com/>
    Desk: 510-868-1614 x100
    Mobile: 510-207-0000
    pkr...@unwiredltd.com <mailto:pkr...@unwiredltd.com>

    *From:*Af [mailto:af-boun...@afmug.com] *On Behalf Of *Timothy D.
    McNabb via Af
    *Sent:* Wednesday, October 22, 2014 1:15 PM
    *To:* af@afmug.com <mailto:af@afmug.com>
    *Subject:* Re: [AFMUG] Dragonwave latency issues

    No routers between, just switches.

    -Tim

    *From:*Af [mailto:af-boun...@afmug.com] *On Behalf Of *Paul Conlin
    via Af
    *Sent:* Wednesday, October 22, 2014 12:22 PM
    *To:* af@afmug.com <mailto:af@afmug.com>
    *Subject:* Re: [AFMUG] Dragonwave latency issues

    Could the routers at each end be the limiting factor?  What is
    their CPU utilization when the link is loaded? What happens to
latency if you stress the link at 200 Mbps with a speed test? Those radios should be able to do close to 400 Mbps all day long
    with no latency.

    PC

    Blaze Broadband

    *From:*Af [mailto:af-boun...@afmug.com] *On Behalf Of *Joshua
    Heide via Af
    *Sent:* Wednesday, October 22, 2014 3:06 PM
    *To:* af@afmug.com <mailto:af@afmug.com>
    *Subject:* Re: [AFMUG] Dragonwave latency issues

    Yes it’s a horizon compact

    Bandwidth of the unit is 400mbs

    Bandwidth usage between 150-200mbs during peak hours.

    No QOS

    Yes during non-peak hours its sits at 1ms

    SNR 35.00 dB

    From our prtg graphs this issues has started end of September and
    latency has gotten worse during peak times as we have deployed
    more 450 gear to that tower.

    I currently have HAAM enabled on the link and it stays at 256qam
    unless we have some bad weather.

    Josh Heide

    Velociter Wireless

    (office) 209-838-1221

    (fax) 209-838-1800

    www.velociter.net <http://www.velociter.net/>

    *From:*Af [mailto:af-boun...@afmug.com] *On Behalf Of *Bill Prince
    via Af
    *Sent:* Wednesday, October 22, 2014 11:47 AM
    *To:* af@afmug.com <mailto:af@afmug.com>
    *Subject:* Re: [AFMUG] Dragonwave latency issues

    So it's a Horizon Compact?

What is the total bandwidth, and what percentage are you using? Have you set up any QOS? 180 ms sounds like a lot; especially
    when ours are typically less than 1 ms.

    -38 is right in the game. What are the other parameters besides
    signal level?

    bp

    On 10/22/2014 11:18 AM, Joshua Heide via Af wrote:

        We have a dragonwave that has latency issues that coincide
        with traffic peak times. As our traffic peaks so does that
        latency at 180ms. Any ideas that could cause this?

        Signal is -38

        Current HAAM Mode hc50_364_256qam

        Thanks,

        Josh Heide

        Velociter Wireless

        (office) 209-838-1221

        (fax) 209-838-1800

        www.velociter.net <http://www.velociter.net/>



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