From: Carlos G Mendioroz (tron@huapi.ba.ar)
Date: Fri Aug 13 2004 - 06:35:20 GMT-3
Scott Morris wrote:
> Actually, voice streams use a pair of ports (even and odd) for RTP and RTCP
> stuff (voice data and control).
This depends on what the endpoints are.
Although true for CCM, this does not hold, e.g., for CME to Voip phone
AFAIK. No RTCP there.
>
> The rtp priority command with "16384 16383" numbers isn't a range. In that
> command, it's the starting port and number of ports (16384+16383=32767)
> whereas the other command actually is a range with start and stop
> information.
>
> HTH,
>
> Scott
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Steven A Ridder
> Sent: Thursday, August 12, 2004 8:57 PM
> To: 'John Matus'; swm@emanon.com; 'lab'
> Subject: RE: qos for voice
>
> The difference between the 1st and 2nd statement is as follows:
>
> The first statement (the udp 16384...) matched the payload and
> signal/control traffic where the "IP RTP" statement captures the data
> packets only. The first statement ensures that ALL RTP traffic (payload and
> signal) packets get matched. If I remember correctly, each RTP stream uses
> 4 consecutive ports, starting with the first even port above 16384, so the
> first stream uses 16384-16387. It's been a while, but I think that's
> correct.
>
> Steve Ridder
>
>
> -- RFC 1049 Compliant
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of John
> Matus
> Sent: Thursday, August 12, 2004 8:08 PM
> To: swm@emanon.com; 'lab'
> Subject: Re: qos for voice
>
> i have no idea if it is working........it's a lab scenario
>
> i wasn't sure if the 'match rtp' somehow included the tcp 1720. i really
> don't understand the difference between the two statements or why or why not
> they would be used. any insite you could give would be most helpful!
>
>
> ----- Original Message -----
> From: "Scott Morris" <swm@emanon.com>
> To: "'John Matus'" <jmatus@pacbell.net>; "'lab'" <ccielab@groupstudy.com>
> Sent: Thursday, August 12, 2004 4:36 PM
> Subject: RE: qos for voice
>
>
>
>>Well, off the cuff, it would appear that you aren't matching the H225 call
>>setup (tcp/1720) in your second class. Otherwise, you are either matching
>>on the RTP header or the UDP header information.
>>
>>Do they both work for you? ;)
>>
>>
>>Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, CISSP,
>>JNCIP, et al.
>>IPExpert CCIE Program Manager
>>IPExpert Sr. Technical Instructor
>>swm@emanon.com/smorris@ipexpert.net
>>http://www.ipexpert.net
>>
>>
>>
>>-----Original Message-----
>>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>
> John
>
>>Matus
>>Sent: Thursday, August 12, 2004 6:29 PM
>>To: lab
>>Subject: qos for voice
>>
>>is there a difference between the following??
>>
>>class-map match-all voip
>>match access-group 101
>>
>>access-list 101 permit tcp any any 1720
>>access-list 101 permit udp any any range 16384 32787
>>
>>AND
>>
>>class-map match-all voip
>>match ip rtp 16384 16383
>>
>>
>>do they perform the same function or are they completely different. i'm
>>confused :)
>>
>>
>>
>>John D. Matus
>>MCSE, CCNP
>>Office: 818-782-2061
>>Cell: 818-430-8372
>>jmatus@pacbell.net
>>
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>
>
> _______________________________________________________________________
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> _______________________________________________________________________
> Please help support GroupStudy by purchasing your study materials from:
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-- Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
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