STM SatLink 2000 - Page 66

SatLink VSAT User Guide
Publication no. 101557
Copyright © 2009 – STM Group, Inc.
Page 65 (160)
The QoS Groups available for internal use in the STM SatLink VSAT are:
QoS Group ID QoS Group Name
0 Best Effort
1 VoIP Audio
2 VoIP Signalling
3 ViC Video
4 ViC Audio
5 ViC Signalling
6 Critical Data (CD)
In addition, the classification table can be configured to block traffic from being sent to the return link
(see section 18.5).
Factory default configuration is that the QoS module of the classification table is empty, and all traffic is
handled as Best Effort (QoS Group 0). A user with privilege rights 2 (user install or equivalent) can
configure a QoS entry in the Classification table in the VSAT as explained below, but the use of other
QoS groups than 0 can be inhibited by the network operator/service provider. Please contact the network
operator/service provider for use of QoS group 1-6 for VoIP and Video real-time traffic and prioritized
effort traffic (CD). Please note that QoS Groups 3-6 for Video and Critical Data will only be available on
the STM SatLink 1000, 1900, 1901 and 2000, if the software license for 4 QoS classes is configured (see
section 18.3).
The CLI command to be used to configure a QoS entry in the Classification table is
ip mfc mask
<module id> <subindex> <index> <group> <list of tags>
with module ID set to 0 (QoS).
This command has a variable length where one or more tags with different tag parameters can be set. The
tags are the different IP header parameters that can be used for QoS classification:
tag and tags parameters for CLI command Function
+src <ipaddr> <mask>
Define or modify IP source address and netmask
-src
Delete IP source address and netmask
+dst <ipaddr> <mask>
Define or modify IP destination address and
netmask
-dst
Delete IP destination address and netmask
+ dscp <dscp-start> <dscp-stop>
Define or modify DSCP range
-dscp
Delete DSCP range
+prot <n> <p1> … <pn>
Define protocol value [0,255]. Up to 3 protocol
values can be defined (n can be 1, 2, or 3).
-prot
Delete protocol values
+sport <sport-start> <sport-stop>
Define TCP/UDP source port number range
-sport
Delete TCP/UDP source port number range
+dport <dport-start> <dport-stop>
Define TCP/UDP destination port number range
-dport
Delete TCP/UDP destination port number range
+dscpmark <dscp>
Define DSCP value to set in IP header
-dscpmark
Delete DSCP value to set in IP header, i.e. do not
change the DSCP value
-all
all filter masks. Used to delete an entry
To view the current QoS configuration, use the CLI command
ip qos show or ip mfc show.