Copyright © 2006 – STM Norway AS
Publication no. 101557, Rev. T, November 3
th
, 2006
Page 44
# ip qos mask 1 1 +dscp 10 15
To add an entry in the QoS classification table matching protocol type 7 and assign this to the VoIP
Audio QoS Group:
# ip qos mask 2 1 +prot 1 7
To add one more classification criteria for the same entry, e.g. destination address:
# ip qos mask 3 1 +dst 10.10.22.0 255.255.255.0
To delete one classification criteria from an entry of the QoS classification table:
#
ip qos mask 3 1 –prot
To delete the whole entry from the QoS classification table:
#
ip qos mask 3 –all
To add a new entry for classifying VoIP Audio traffic:
#
ip qos mask 1 1 +src 10.10.10.1 255.255.255.255 +dscp 10 15
To add a new entry for classifying VoIP Signalling:
#
ip qos mask 4 2 +src 10.10.10.1 255.255.255.255
To view the current QoS configuration:
# ip qos show
QOS Policy Table
Grp Cls CrM Pri QLength Drop Timeout Description
0 0 0 0 400000 0 120 Best Effort
1 1 1 1 15000 1 120 VoIP Audio
2 1 1 2 4000 1 120 VoIP Signalling
QoS Classification table
Idx Grp Classification Parms
1 1 IPSrc= 10.10.10.1/255.255.255.255
DSCP = 10..15
2 1 Protocols = 7
4 2 IPSrc= 10.10.10.1/255.255.255.255
5 0 match all
#
8.2
Configuring the terminal for VoIP
There are two QoS alternatives for the VoIP PHB group:
1.
All VoIP traffic is mapped to QoS group 1.
2.
VoIP audio is mapped to QoS group 1 and VoIP signalling is mapped to QoS group 2
The second option will protect the VoIP signalling from fluctuations in the VoIP audio traffic. However,
to use this option, the terminal’s QoS classificator must be able to distinguish between VoIP signalling
and VoIP audio in order to separate them into different QoS groups.
8.3
Configuring the terminal for Video (ViC)
The following QoS alternatives are available for the ViC PHB group:
1.
All ViC traffic is mapped to QoS group 3.
2.
ViC video is mapped to QoS group 3 and ViC audio+signalling is mapped to QoS group 4
3.
ViC video is mapped to QoS group 3, ViC audio is mapped to QoS group 4 and ViC signalling is
mapped to QoS group 5