[c-nsp] QoS for VoIP basics

Collins, Richard rich.collins at siemens.com
Mon Dec 4 14:08:42 EST 2006


Actually I just tried out the command on my router but didn't really
test it.  It is a 3550 so maybe that's different with the 2950.
C3550-IPSERVICESK9-M), Version 12.2(25)SEE2, RELEASE SOFTWARE 

I had recently been looking at some wrr.

-Richard

>Thanks, Richard.
>
>
>> I really haven't done any VoIP but wouldn't you be looking for
"strict
>> priority
>> scheduling"?  That (expedite queue) would be enabled on the egress
port
>> of the 2950.
>
>
>Actually I've enabled the expedite queue by configuring a weight of 0
to
>queue 4 (I'm running 2950-EI 12.1(20)EA1a).
>
>
>> Switch#sh running-config int fastEthernet 0/3
>> Building configuration...
>>
>> Current configuration : 251 bytes
>> !
>> interface FastEthernet0/3
>> switchport access vlan 305
>> wrr-queue bandwidth 100 1 1 1
>> wrr-queue cos-map 1 0 1 2 3 4 6 7
>> wrr-queue cos-map 4 5
>> priority-queue out
>>
"cc" 40L, 978C written

mitar at linux-1:~> less cc
Actually I just tried out the command on my router but didn't really
test it.  It is a 3550.
C3550-IPSERVICESK9-M), Version 12.2(25)SEE2, RELEASE SOFTWARE 

I had recently been looking at some wrr.

-Richard

>Thanks, Richard.
>
>
>> I really haven't done any VoIP but wouldn't you be looking for
"strict
>> priority
>> scheduling"?  That (expedite queue) would be enabled on the egress
port
>> of the 2950.
>
>
>Actually I've enabled the expedite queue by configuring a weight of 0
to 
>queue 4 (I'm running 2950-EI 12.1(20)EA1a).
>
>
>> Switch#sh running-config int fastEthernet 0/3
>> Building configuration...
>>
>> Current configuration : 251 bytes
>> !
>> interface FastEthernet0/3
>> switchport access vlan 305
>> wrr-queue bandwidth 100 1 1 1
>> wrr-queue cos-map 1 0 1 2 3 4 6 7
>> wrr-queue cos-map 4 5
>> priority-queue out
>>
>
>
>Just curiously, what IOS are you running? I'm not able to find
reference to 
>the "priority-queue out" command you're using.
>
>Adam
>



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