[cisco-voip] QoS ?

[Jonathan Charles]

I was misreading it...

But I still stand by statement that CoS is layer 2... and Precedence, aka
ToS is layer 3...

You are right, CS3 and Precedence 3 are the same thing... just different
ways of saying it.


Jonathan


On 3/20/06, Wydra, Jason <jwydra at burwood.com> wrote:
>
>  CS3 isn't CoS dude.
>
>
>
> *Jason Wydra*
>
> *Consultant***
>
> *burwood* *group, inc.*
>
> *Phone: (312) 327-4677***
>
> *Cell: (312) 493-2834*
>
> jwydra at burwood.com
>
>
>
>
>  ------------------------------
>
> *From:* Jonathan Charles [mailto:jonvoip at gmail.com]
> *Sent:* Monday, March 20, 2006 1:26 PM
> *To:* Wydra, Jason
> *Cc:* Bell, Joe; Voll, Scott; Cisco Voip
>
> *Subject:* Re: [cisco-voip] QoS ?
>
>
>
> No.
>
> CoS is layer 2, Precedence is layer 3...
>
>
> Jonathan
>
> On 3/20/06, *Wydra, Jason* <jwydra at burwood.com > wrote:
>
> You want a quick 101 on QoS and DSCP you might want to check out this
> link……..
>
>
>
>
> http://www.cisco.com/en/US/tech/tk543/tk757/technologies_tech_note09186a00800949f2.shtml
>
>
>
> Also, with the following class map, wouldn't the CS3 and precedence 3
> statements be redundant? Couldn't you just get by with one of them? Since
> both effectively are 011000
>
>
>
> class-map match-any VoIP-ctrl
>
>  match ip dscp cs3
>
>  match ip dscp af31
>
>  match ip precedence 3
>
>
>
>
>
> *Jason Wydra*
>
> *Consultant*
>
> *burwood* *group, inc.*
>
>
>
>
>  ------------------------------
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net]
> *On Behalf Of *Bell, Joe
> *Sent:* Monday, March 20, 2006 12:49 PM
> *To:* Voll, Scott; Cisco Voip
>
>
> *Subject:* Re: [cisco-voip] QoS ?
>
>
>
> You want to use match-any.  Match-all means the packet must match all
> criteria defined in your map or it does not match.  Match-any is any single
> description in your maps.  Currently, your signaling map does not match any
> of the traffic you're trying to classify due to this behavior.  AF31 is bit
> structure 011010 and CS3 is 011000.  There won't be a packet that matches
> both.  You want it to be an "either" statement, not an "and" so use
> match-any.  Also, if you use match-any, you can collapse your class-maps for
> signaling into one map rather than two, which is cleaner.  Here is a
> collapsed map that works.
>
>
>
> class-map match-any VoIP-ctrl
>
>  match ip dscp cs3
>
>  match ip dscp af31
>
>  match ip precedence 3
>
> class-map match-any VoIP
>
>  match ip dscp ef
>
>  match ip precedence 5
>
> .
>
>
>
> Joe Bell
>
>
>
>
>
>
>
>
>
>
>  ------------------------------
>
> *From:* cisco-voip-bounces at puck.nether.net [mailto:
> cisco-voip-bounces at puck.nether.net] *On Behalf Of *Voll, Scott
> *Sent:* Monday, March 20, 2006 10:20 AM
> *To:* Cisco Voip
> *Subject:* [cisco-voip] QoS ?
>
>
>
> I have yet to take the QoS class so can someone give some advice:
>
>
>
> I just these class maps:
>
>
>
> class-map match-all WAN2LAN-VoIP-ctrl
>
>  match ip dscp af31
>
>  match ip dscp cs3
>
> class-map match-all VoIP-ctrl
>
>  match ip dscp cs3
>
>  match ip dscp af31
>
>  match ip precedence 3
>
> class-map match-all VoIP
>
>  match ip dscp ef
>
>  match ip precedence 5
>
> class-map match-all WAN2LAN-VoIP
>
>  match ip dscp ef
>
>
>
> is this correct or should I be using match-any.
>
>
>
> Thanks in advance
>
>
>
> Scott
>  ------------------------------
>
> This message and any attachments are intended only for the use of the
> addressee and may contain information that is privileged and confidential.
> If the reader of the message is not the intended recipient or an authorized
> representative of the intended recipient, you are hereby notified that any
> dissemination of this communication is strictly prohibited. If you have
> received this communication in error, please notify us immediately by e-mail
> and delete the message and any attachments from your system.
>
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-voip/attachments/20060320/e64e8ac3/attachment-0001.html