Hi
You should use "ip rtp priority" plus WFQ or CBQWFP or "ip rtp reserve"
Custom queueing is not the best solution for voice, because you need strict
priority for voice.
In both cases I would recomend to use L2 fragmentation if your interface
is below 1 Mbits (FRF.12 or ppp interleaving)
The ports are usually above 16384.
Example (i skip irrelevant info, this reserve 48 kbps and 20 udp voice ports ):
in s0
encapsulation ppp
ppp multilink
multilink virtual template 1
in lo0
ip address xxxx
int virtual-template 1
ip unnumbered lo0
ip rtp reserve 16384 20 48
ppp multilink
ppp multilink fragment-delay 15
ppp multilink interleave
"Arigo, Francis" escribió:
> Has anyone used custom prioritization and queuing to prioritize H.323
> traffic over other data traffic? If so, I'd be very interested in seeing
> some working configurations.
>
> The problem that I'm having is narrowing the field of ports to prioritize.
> Prioritizing the initial TCP handshake is straightforward, but once it makes
> the connection it uses a dynamic UDP high port . Do you prioritize all high
> port UDP traffic?
>
> The devices that create the H.323 traffic are two voice PBXs(com2001) that
> have VoIP capabilities via the H.323 standard. They are connected by a T1
> using 2501s to route IP.
>
> Thanks in advance for your assistance.
> Francis Arigo, MCSE, CCNA
> System Administrator
> Classroom Connect
>
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