RE: OT: QoS Testing

Yeah - I'll whip something up and send when I'm doing some research shortly into it.

The goal is to really match the functionality of the Corvil appliance without spending $$$ on it - think its like $250,000

-----Original Message-----
From: OLUSEGUN DADA [mailto:engrenny_at_hotmail.com]
Sent: Tuesday, August 20, 2013 4:17 PM
To: Joseph L. Brunner; CCIE GROUPSTUDY
Subject: Re: OT: QoS Testing

Hi Joe,

Thanks. Whoa, not a a trivial task indeed!!! Lol

They are no ISRG2 series router on the network. The model of router available is 7206.

I could have gone ahead to set IP SLA VO Operation if there are ISRG2 series router.

I might try out the option of perl scripts if you are available to run it with me.

Thanks.

Regards

Dada Olusegun

Sent from my BlackBerry. Smartphone, from Etisalat.

-----Original Message-----
From: "Joseph L. Brunner" <joe_at_affirmedsystems.com>
Date: Tue, 20 Aug 2013 20:04:49
To: <engrenny_at_hotmail.com>; <ccielab_at_groupstudy.com>
Subject: RE: OT: QoS Testing

Your best bet would be to utilize and graph the results of ip sla probes throughout your network. You could even deploy modern 3900 series cisco IOS routers just for the sake of running those probes if necessary or configure the IOS devices you already have to run them.

Then you can script the start/stop of methodical levels of background traffic streams of say cifs, nfs, etc on top the same pipes as Video, H323, SCCP and RTP
to see how well the probes detect jitter with and without qos configured at specific time intervals. There are many examples on the net of how to use netcat and bash scripts to inject exactly the right amount of bytes/time to saturate the network to the % you want to drive it at.

Finally, I would get my google googles out, look up some perl scripts and graph with RRDTOOL, et al. the results of

show policy-map int s0/0/0

You would be looking to have perl grab the output of things below like -

Voice_RTR_1#show policy-map int s0/0/0
 Serial0/0/0

  Service-policy output: WAN-OUTBOUND-PMAP

    queue stats for all priority classes:
      Queueing
      queue limit 64 packets
      (queue depth/total drops/no-buffer drops) 0/86/0
      (pkts output/bytes output) 98408582/7095878604

    Class-map: MATCH-EF-CMAP (match-any)
      98410374 packets, 7096008806 bytes
      5 minute offered rate 75000 bps, drop rate 0 bps
      Match: ip dscp ef (46)
        98410371 packets, 7096008806 bytes
        5 minute rate 75000 bps
      Priority: 70% (1075 kbps), burst bytes 26850, b/w exceed drops: 86

    Class-map: MATCH-CS3-AF31-CMAP (match-any)
      1123428 packets, 75412530 bytes
      5 minute offered rate 0 bps, drop rate 0 bps
      Match: ip dscp cs3 (24)
        1123428 packets, 75412530 bytes
        5 minute rate 0 bps
      Match: ip dscp af31 (26)
        0 packets, 0 bytes
        5 minute rate 0 bps
      Queueing
      queue limit 64 packets
      (queue depth/total drops/no-buffer drops) 0/0/0
      (pkts output/bytes output) 1123381/61628732
      bandwidth 5% (76 kbps)

    Class-map: class-default (match-any)
      1551483 packets, 206999990 bytes
      5 minute offered rate 0 bps, drop rate 0 bps
      Match: any
      Queueing
      queue limit 64 packets
      (queue depth/total drops/no-buffer drops/flowdrops) 0/0/0/0
      (pkts output/bytes output) 1551368/185796999
      Fair-queue: per-flow queue limit 16
        Exp-weight-constant: 9 (1/512)
        Mean queue depth: 0 packets
        class Transmitted ECN Random drop Tail/Flow drop Minimum Maximum Mark
                  pkts/bytes marked pkts/bytes pkts/bytes thresh thresh prob

        0 1330921/158182844 0 0/0 0/0 20 40 1/10
        1 0/0 0 0/0 0/0 22 40 1/10
        2 0/0 0 0/0 0/0 24 40 1/10
        3 0/0 0 0/0 0/0 26 40 1/10
        4 0/0 0 0/0 0/0 28 40 1/10
        5 0/0 0 0/0 0/0 30 40 1/10
        6 220447/27614155 0 0/0 0/0 32 40 1/10
        7 0/0 0 0/0 0/0 34 40 1/10

Not a trivial task - but for a good perl guy great way to visualize the network flows and compare packet counts, drops, jitter (gained from the SLA probes) and such.

Let me know if you need help... might be a great way to spend my lonely sore rest periods recovering from my runs :)

-Joe

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of OLUSEGUN DADA
Sent: Tuesday, August 20, 2013 2:52 PM
To: CCIE GROUPSTUDY
Subject: Re: OT: QoS Testing

This should take into account delay, jitters, and loss

Regards

Dada Olusegun

Sent from my BlackBerry. Smartphone, from Etisalat.

-----Original Message-----
From: OLUSEGUN DADA <engrenny_at_hotmail.com>
Date: Tue, 20 Aug 2013 18:22:07
To: <ccielab_at_groupstudy.com>
Subject: OT: QoS Testing

Hello all!

Anyone with a best way to test for QoS on the enterprise network?

We need to do the test for video conferencing

I await your opinions. Thanks.

Regards

Dada Olusegun

Sent from my BlackBerry. Smartphone, from Etisalat.

Blogs and organic groups at http://www.ccie.net
Received on Tue Aug 20 2013 - 20:18:24 ART