RE: QoS: Video Traffic (Lync)

From: Cisco Fanatic <ebay_products_at_hotmail.com>
Date: Mon, 17 Jun 2013 11:51:59 -0700

I am trying to see if my QoS policy applied for Video works. I don't have
fancy Tandbery units to test video. But do have Lync client on my laptop so
trying how will this work.

QoS is configured on ingress switch and egress router. I don't see any
marking on either of them which makes me believe that I have to tweak Lycn
client in some form.

Date: Mon, 17 Jun 2013 08:25:15 -0700
Subject: Re: QoS: Video Traffic (Lync)
From: renorider_at_gmail.com
To: mothafungla_at_gmail.com
CC: ohio38jr_at_gmail.com; ebay_products_at_hotmail.com; ccielab_at_groupstudy.com

By default, Lync doesn't use any particular standard port range for traffic.
Ranges are also fairly large:
http://technet.microsoft.com/en-us/library/gg405412(v=ocs.14).aspx

By default, no markings are coming off of any traffic. QoS on Lync really
needs to be tailored to accommodate use.
I was also curious if you have established trust boundaries or how you are
planning on setting markings (through ingress policy on access?)
Lync sounds great until you hit this bump in the road ;)
Regards,
Marc Edwards

CCIE #38259

On Mon, Jun 17, 2013 at 7:55 AM, Tony Singh <mothafungla_at_gmail.com> wrote:

Lync can also use srtp for a/v streams, take a look at the following article
and run some tests using the specific transport and port numbers to see if you
can get matches....

http://technet.microsoft.com/en-us/library/gg425882.aspx

--
BR
Tony
Sent from my iPad
On 17 Jun 2013, at 11:30, Israel Ogongo <ohio38jr_at_gmail.com> wrote:
> Remember QoS kicks in only when there is saturation on the link to start
it
> - was that your test case scenario?
>
> Sent from my iPhone!
>
> *Apologies for brevity and any error!*
>
> On 17 Jun 2013, at 3:57 AM, Cisco Fanatic <ebay_products_at_hotmail.com>
wrote:
>
> All -
> I initiated video via Lync call between 2 sites over the WAN. But, I did
not
> see any traffic hitting Video QoS policy?
> How can I test video? Is Lync video actually not video? Or my QoS policy
is
> not right? Experts ...
> Yuri
> !class-map match-any VoIP match ip dscp ef match protocol rtp audio match
> protocol rtcpclass-map match-any Data match ip dscp af21class-map
match-any
> SIP match ip dscp af31 match protocol sip match ip dscp cs3  af31class-map
> match-any Video match ip dscp af41 match protocol rtp video match protocol
> video-over-httpclass-map match-any default match ip dscp default match
> any!policy-map QoS_Output_Policy class VoIP  priority percent 35  set ip
> dscp
> ef class Video  priority percent 25  set ip dscp af41 class SIP  bandwidth
> remaining percent 25  set ip dscp af31 class Data  bandwidth remaining
> percent
> 15  set ip dscp af21 class class-default  fair-queue  set dscp
> default!interface GigabitEthernet0/0 service-policy output
> QoS_Output_Policy!
> ***************************************************************
> Router#show policy-map interface G0/0 GigabitEthernet0/0
> Service-policy output: QoS_Output_Policy
>   queue stats for all priority classes:      Queueing      queue limit 64
> packets      (queue depth/total drops/no-buffer drops) 0/0/0      (pkts
> output/bytes output) 8204/608456
>   Class-map: VoIP (match-any)      8204 packets, 608456 bytes      5
minute
> offered rate 0000 bps, drop rate 0000 bps      Match: ip dscp ef (46)
> 7678 packets, 569532 bytes        5 minute rate 0 bps      Match: protocol
> rtp
> audio        526 packets, 38924 bytes        5 minute rate 0 bps
Match:
> protocol rtcp        0 packets, 0 bytes        5 minute rate 0 bps
> Priority: 35% (35000 kbps), burst bytes 875000, b/w exceed drops: 0
>     QoS Set        dscp ef          Packets marked 8204
>   Class-map: Video (match-any)      0 packets, 0 bytes      5 minute
> offered
> rate 0000 bps, drop rate 0000 bps      Match: ip dscp af41 (34)        0
> packets, 0 bytes        5 minute rate 0 bps      Match: protocol rtp video
> 0 packets, 0 bytes        5 minute rate 0 bps      Match: protocol
> video-over-http        0 packets, 0 bytes        5 minute rate 0 bps
> Priority: 25% (25000 kbps), burst bytes 625000, b/w exceed drops: 0
>     QoS Set        dscp af41          Packets marked 0
>   Class-map: SIP (match-any)      150981 packets, 12183006 bytes      5
> minute offered rate 0000 bps, drop rate 0000 bps      Match: ip dscp af31
> (26)
> 130688 packets, 8025396 bytes        5 minute rate 0 bps      Match:
> protocol
> sip        8839 packets, 3629854 bytes        5 minute rate 0 bps
>     Match:
> ip dscp cs3 (24) af31 (26)        11454 packets, 527756 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)
150981/12502122
> bandwidth remaining 25%      QoS Set        dscp af31          Packets
> marked
> 150981
>   Class-map: Data (match-any)      0 packets, 0 bytes      5 minute
offered
> rate 0000 bps, drop rate 0000 bps      Match: ip dscp af21 (18)        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) 0/0      bandwidth remaining 15%      QoS Set
>       dscp
> af21          Packets marked 0
>   Class-map: class-default (match-any)      479148 packets, 141850950
bytes
> 5 minute offered rate 4000 bps, drop rate 0000 bps      Match: any
> Queueing      queue limit 64 packets      (queue depth/total
drops/no-buffer
> drops/flowdrops) 0/0/0/0      (pkts output/bytes output) 479148/137302151
> Fair-queue: per-flow queue limit 16 packets      QoS Set        dscp
default
> Packets marked 458428
>
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Received on Mon Jun 17 2013 - 11:51:59 ART

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