If you see the output you will notice that you matched all traffic in the class-default. Voice packets are RTP (UDP) packets. If you classify the traffic on the basis of UDP voice ports then you will the results. I am posting here a sample LLQ config. that would do the job for you. Hope this would help:
Sample LLQ Config:
The following example shows how to configure LLQ.
access-list 100 permit udp any any range 16384 32767
access-list 101 permit tcp any any eq 1720
access-list 102 permit tcp any any eq 80
access-list 103 permit tcp any any eq 23
class-map match-all voip
match access-group 100
class-map match-all voip-Control
match access-group 101
class-map match-all data1-Web
match access-group 102
class-map match-all data2-Telnet
match access-group 103
service-policy output LLQ
In the example above, any traffic that matches ACL 100 will be classified as "class VoIP" (meaning
voice traffic) and given high priority up to 32 kbps.
- ACL 100 matches the common UDP ports used by VoIP
- ACL 101 matches the H.323 signaling traffic (TCP port 1720).
Class data1-Web matches web traffic (TCP port 80 as seen in Access List 102) and guarantees 64 kbps.
class data2-Telnet matches telnet traffic (TCP port 23 as seen in ACL 103) and guarantees 32 kbps.
The default class is configured to give an equal share of the remaining bandwidth to unclassified flows.
The policy is called "LLQ" and it is applied on outgoing traffic on Serial1/0, which has a
total bandwidth of 256 kbps.
Note By default, the total guaranteed bandwidth and priority bandwidth for all classes should be
less than 75 percent of the interface bandwidth. You can modify this percentage by issuing the
Assuming that i'm going to have 4 simul. calls on my 128 kbps satellite link with the codec "codec g729r8 bytes 40" (a call will need 11.2 kbps bandwith with VAD); I would like to know the bandwith I had to set on my class VoIP for the UDP trafic and the bandwith for the class VoIP-control ?
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